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Artemis Resources Limited — Capital/Financing Update 2014
Jun 29, 2014
10429_rns_2014-06-29_5da10ea3-7120-4877-8ba7-58afe4b692d5.pdf
Capital/Financing Update
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ASX Announcement 30 June 2014
COMPLETION OF GOLD PROJECT ACQUISITION – UPDATE ON WEST PILBARA RESOURCE STATUS
WEERIANNA GOLD PROJECT AND WEST PILBARA EXPLORATION
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Completion of acquisition of ex-Homestake gold project increases Artemis gold inventory
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Weerianna contains 70,000 oz gold (Au) resource with potential for significant resource additions
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Potential exploration/development synergies with Artemis’ nearby Carlow Castle project
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Carlow Castle Prospect contains 40,000 oz Au (and 2,500t copper) resource – and remains open
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Artemis is a major tenement holder in the West Pilbara with key base metals and gold prospects
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A complete review of all geophysical data has been initiated to refine proposed drill program design
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Rights issue to raise up to $1.27 million (before costs) to primarily fund exploration of West Pilbara project
Artemis Resources Limited (ASX: ARV) is pleased to announce the completion of the acquisition of 51% of the Weerianna gold project and to provide additional background information regarding the existing JORC (2012) resource estimates for the Weerianna and Carlow Castle Prospects. This information was inadvertently omitted from Artemis’ ASX announcement “ Acquisition of Gold Deposit to Kickstart Pilbara Exploration ” dated 26 June 2014. The acquisition of the Weerianna Gold Project (Figure 1) enhances the Company’s existing West Pilbara Project.
With the inclusion of Weerianna, the gold inventory controlled by Artemis** in the West Pilbara has now increased to 110,000 oz (Table 1). The Company’s objective is to significantly increase the gold and base metal inventory of its West Pilbara Project, including at Weerianna, with exploration drilling.
Table 1: West Pilbara Project – JORC (2012) Inferred Resource Table
| Project | Cutoff Grade (Aug/t) |
Tonnes (t) | Au (g/t) | Cu (%) | Contained Au (oz) |
Contained Cu (t) |
|---|---|---|---|---|---|---|
| Weerianna | 1.0 | 1,005,000 | 2.2 | - | 70,000 | - |
| Carlow Castle | 1.0 | 416,000 | 2.9 | 0.6% | 40,000 | 2,500 |
Note: Rounding may result in apparent inconsistencies within this table *Resources reported as 100%
The Weerianna Gold Project (ARV 51%) currently hosts an Inferred Mineral Resource of 1 million tonnes at 2.2 g/t Au for a total of 70,000 ounces of gold using a 1.0 g/t Au cut-off grade, estimated in accordance with JORC (2012). Excellent potential exists for a substantial increase in tonnage as the current resource is open at depth and along strike.
The Carlow Castle prospect (ARV 100%) is located 7 km southwest of the Weerianna project, part of Artemis’ West Pilbara portfolio (Figure 1), and currently hosts an Inferred Mineral Resource of 416,000 tonnes at 2.9 g/t Au and 0.6% copper (Cu) for total contained metal of approximately 40,000 ounces of Au and 2,500 tonnes of Cu, estimated in accordance with JORC (2012).
The acquisition of Weerianna is part of an ongoing process of aggregating tenements in the West Pilbara area that are geographically proximate and geologically contiguous with the potential of hosting an economically viable resource.
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Artemis Resources Limited ABN: 80 107 051 749 Telephone: +61 2 9078 7670 | Facsimile: +61 2 9078 7661 | Email: [email protected] Level 9, 50 Margaret Street, SYDNEY NSW 2000 | PO Box R933 Royal Exchange, NSW 1225 Australia
www.artemisresources.com.au
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Figure 1: Location Plan – Artemis West Pilbara tenure and Weerianna Gold Project
Key Acquisition Terms
As per Artemis’ 26 June 2014 announcement, the Weerianna Gold Project is the sole asset of Australian private company Western Metals Pty Ltd and is located within Mining Lease M47/223 (Figure 1). The key terms of the acquisition are as follows:
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Artemis acquires 51% of Western Metals Pty Ltd from the Vendor (an unrelated party to the Company) for 76,562,500 fully paid Artemis shares at a deemed price of $0.004 per share (a premium to current share price), and 76,562,500 unlisted options with exercise price $0.003 and expiry date of 30 June 2016. The Vendor shall be entitled to a free carried interest (in respect of its retained share) up to a decision to mine and a gross royalty of 2%.
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Artemis has an option to acquire a further 29% to take its interest in Western Metals Pty Ltd to 80%, on the same terms pro rata as it has acquired the 51% i.e. 43,535,539 shares and 43,535,539 unlisted options with the same terms outlined above.
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The Weerianna tenement is subject to a plaint. The vendor has advised that it has met its minimum expenditure commitment and that the plaint has no merit (refer ASX announcement 26 June 2014).
ASX Announcement dated 30 June 2014
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Weerianna Gold Resource
A Mineral Resource estimate incorporating all drilling on the Weerianna Gold Project was undertaken in August 2009 by an independent consultancy group. While no significant exploration activities affecting the resource have been completed since that time, the Inferred Mineral Resource was recently reviewed by the same consultancy group and upgraded to comply with JORC (2012). The review resulted in an estimate of an Inferred Mineral Resource containing 70,000 ounces of gold (see Appendix and Table 2). A density of 2.2t/m[3] (oxide), 2.6t/m[3] (transitional) and 2.8t/m[3] (primary) was used to estimate resource block tonnage for all lodes.
Table 2: Weerianna Gold Deposit – Inferred Mineral Resource Estimate (above 1g/t Au)
| Material | Tonnes(t) | Au(g/t) | Contained Au(oz) |
|---|---|---|---|
| Oxide | 125,000 | 2.31 | 9,000 |
| Transitional | 710,000 | 2.16 | 49,000 |
| Primary | 171,000 | 2.12 | 12,000 |
| GRAND TOTAL | 1,005,000 | 2.17 | 70,000 |
Note: Rounding may result in apparent inconsistencies within this table *Resources reported as 100%
The Weerianna gold deposit is located within a chert-ultramafic schist sequence, on the overturned eastern limb of an east-northeast trending syncline (Figure 2). The Weerianna JORC (2012) Mineral Resource was estimated based on a combination of 147 RC and 5 diamond drill holes drilled by Noranda and Homestake between 1986 and 1997 (refer to ASX announcement dated 26 June 2014). Drill hole spacing throughout the Weerianna deposit is primarily on a semiregular grid of 25m along-strike, with 20m average spacing across-strike. Hole depths range from 30 to 180 metres and were drilled either to grid north or south (generally orthogonal to strike), and angled -60°. Sampling was conducted primarily on 1m intervals and analysed by either aqua regia digestion or fire assay.
Four distinct mineralisation zones comprise the deposit, with an overall east-west trend and steep dip of approximately -80° towards grid south. The deposit has been defined as extending 600m along-strike, currently with a maximum down-dip extent of 110m. Mineralisation at Weerianna is associated with quartz veins, which are controlled by the degree of schistosity present. Gold mineralisation was digitised on cross sections, and snapped to drill intercepts, using an approximate lower cut-off grade of 0.5 g/t Au. Sectional envelopes were then linked to form 3D solids. Further details of the deposit geology, drilling techniques, assay analysis and interpolation methodology are listed in the Appendix following this report.
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Figure 2: Weerianna Gold Project (M47/223) – Geology and Mineralisation
ASX Announcement dated 30 June 2014
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The resource was estimated using ordinary kriging interpolation for all lodes, with interpolation estimated independently for each lode and restricted to blocks located within each lode. Top-cuts of either 10g/t or 20g/t were applied to selected lodes in order to constrain extreme values and reduce their impact on estimated grades. Lodes were classified as Inferred on the basis of drillhole spacing, sampling, lode geometry, bulk density and confidence in grade continuity. A drill hole plan and schematic cross section are included in the Appendix to this announcement.
Detailed studies have yet to be undertaken to assess the viability of economically extracting and processing the Weerianna Mineral Resource, however the Company will test the Weerianna deposit with further drilling down dip and along strike with the objective of expanding the resource inventory. Drill planning is currently underway.
Carlow Castle Gold-Copper Resource
A Mineral Resource estimate for the Carlow Castle (South) Project was undertaken in 2013 by an independent consultancy group in order to comply with JORC (2012) guidelines. While that resource estimate was first released publicly in the Artemis 2013 Annual Report, details of the Inferred Resource estimation methodology are now provided below. The estimation resulted in an Inferred Mineral Resource containing 40,000 ounces of gold and 2,500 tonnes of copper (Cu) (see Appendix and Table 3).
Table 3: Carlow Castle (South) Au-Cu Deposit – Inferred Mineral Resource Estimate (above 1g/t Au)
| Material | Tonnes(t) | Au(g/t) | Cu(%) | Contained Au(oz) | Contained Cu(t) |
|---|---|---|---|---|---|
| Oxide/Supergene | 62,000 | 6.3 | 0.9 | 13,000 | 500 |
| Primary | 354,000 | 2.3 | 0.6 | 26,000 | 2100 |
| GRAND TOTAL | 416,000 | 2.9 | 0.6 | 40,000 | 2500 |
*Note: Rounding may result in apparent inconsistencies within this table
The Carlow Castle (South) JORC (2012) Mineral Resource was estimated based essentially on 64 RC drill holes drilled by Legend Mining between 1995 and 2000. All holes were drilled at approximately 60 degree dips and approximately orthogonal to strike (Figure 3). A further 21 holes (including four diamond drill holes) were completed prior to the Legend drilling and these holes were utilised in the geological modelling stage, however only the Legend drill holes were used in the grade modelling due to their greater reliability.
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Figure 3: Carlow Castle South – Geology and Drillhole Plan (see Legend on Figure 3a)
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Figure 3a: Carlow Castle South – Legend to Figure 3
Mapping of the surface outcrop and drilling at Carlow Castle has outlined a number of narrow sub parallel vein zones with gold +/- copper mineralisation, however Carlow Castle South is primarily hosted within two steep north dipping sub parallel mineralised shears. Further details of the deposit geology, drilling techniques and analysis methodology are listed in the Appendix following this report.
The mineralisation was digitised on cross sections, snapping to the drill intercepts, using a lower cut-off grade of 0.5 metal content, where the metal content is defined as the total of Au g/t and Cu%. This cut-off was chosen to define the mineralised envelope because the copper and gold are both strongly associated with each other in the veins and are both potentially economically recoverable with a gram of gold (1 gram = $41) worth approximately the same as 1% copper (10 kilograms = $70) considering the extra cost of extraction and smelter charges for copper.
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Figure 4: Carlow Castle South – Cross section (506,825E) of Drillholes and Mineralised Zones
The two mineralised zones on each cross section were then linked by wireframes to produce solids. Since no proper lithological logs were available it was assumed that the upper 25 metres were oxidised with the deeper portion of the veins in the primary zone. Separate wireframes were produced for the Oxide and Primary zones in each of the two mineralised shears.
ASX Announcement dated 30 June 2014
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The grades were interpolated into the model cells using an Inverse Distance Cubed (ID3) algorithm. The grades in each mineralised shoot were wireframed and modelled separately as were the Oxide and Primary zones with only the grades within each respective wireframe being used to extrapolate grades within each wireframe.
Conservative bulk densities of 2.0t/ m[3] in the oxide zone and 2.6t/ m[3] in the primary zone, based on standard values for basalt that hosts the mineralised shears, were used to convert volumes to tonnes. The modelling indicated that the grades in the oxide zone are significantly higher than in the primary zone, possibly due to supergene enrichment.
The Carlow Castle resource was classified by the independent consultant as Inferred based on the spacing of the drilling and quality of the data used in the estimation.
Detailed studies have not been undertaken to assess the viability of economically extracting and processing the Carlow Castle Mineral Resource, however additional drilling is envisaged to test the additional resource potential.
Refer to ASX announcement dated 26 June 2014 for details of current plaint action.
Rights Issue
On 26 June 2014, Artemis announced a pro rata non-renounceable rights issue (“Rights Issue”) of up to 425,798,911 new shares on the basis of one (1) new share for every two (2) shares held by eligible shareholders on 8 July 2014 (“Record Date”), at an issue price of $0.003 per share with one (1) free attaching option (exercisable at $0.003 on or before 31 July 2016) for every four (4) new shares issued, to raise up to approximately A$1.27 million (before costs).
ASX Announcement dated 30 June 2014
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ABOUT ARTEMIS RESOURCES
Artemis Resources Limited is a resources exploration company with a focus on its prospective Mount Clement (gold), Eastern Hills (antimony), Yandal (gold) and West Pilbara (gold and base metals) projects in Western Australia. These projects have significant exploration potential and close proximity to existing important deposits or producing mines. Artemis aims to develop a significant gold inventory through exploration and acquisitions which have the potential to become mines and create shareholder value.
For further information, please contact:
Guy Robertson Executive Director Phone: +61 2 9078 7670 Email: [email protected] Web Site: www.artemisresources.com.au
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Figure 4
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Figure 5: ARV Project Locations
Competent Person Statements
The information in this document that relates to Weerianna Mineral Resources is based on information compiled or reviewed by Mrs Fleur Muller, who is a Member of The Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Mrs Muller is a consultant to Artemis Resources Ltd, and is employed by Geostat Services Pty Ltd. Mrs Muller has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which she is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mrs Muller consents to the inclusion in the report of the matters based on her information in the form and context in which it appears.
The information in this document that relates to Exploration Targets, Exploration Results, Mineral Resources or Ore Reserves at Carlow Castle is based on information compiled by Mr Philip A Jones, who is a Corporate Member of The Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists and independent consultant to the Company. Mr Jones has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Jones consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
The information in this document that relates to other Exploration Results is based on information compiled or reviewed by Mr Trevor Woolfe, who is a Member of The Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Mr Woolfe is a consultant to the Company, and is employed by Alexander Cable Pty Ltd. Mr Woolfe has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Woolfe consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Forward Looking Statements
This report contains forecasts, projections and forward looking information. Such forecasts, projections and information are not a guarantee of future performance and involve unknown risks and uncertainties, many of which are out of Artemis’ control. Actual results and developments will almost certainly differ materially from those expressed or implied. Artemis has not audited or investigated the accuracy or completeness of the information, statements and opinions contained in this presentation. To the maximum extent permitted by applicable laws, Artemis makes no representation and can give no assurance, guarantee or warranty, express or implied, as to, and takes no responsibility and assumes no liability for (1) the authenticity, validity, accuracy, suitability or completeness of, or any errors in or omission from, any information, statement or opinion contained in this report and (2) without prejudice to the generality of the foregoing, the achievement or accuracy of any forecasts, projections or other forward looking information contained or referred to in this report.
ASX Announcement dated 30 June 2014
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APPENDIX
JORC Code, 2012 Edition – Table 1: Weerianna
Section 1 Sampling Techniques and Data
| (Criteriainthis | sectionapply to allsucceeding sections.) | sectionapply to allsucceeding sections.) | ||
|---|---|---|---|---|
| Criteria | JORC Code explanation | Commentary | ||
| Sampling | | Nature and quality of sampling (eg cut channels, | |
Reverse circulation drilling was used to obtain 1m |
| techniques | random chips, or specific specialised industry | drill chip samples from which a sample was | ||
| standard measurement tools appropriate to the | collected for submission to the laboratory for | |||
| minerals under investigation, such as down hole | analysis. Diamond drillholes were sampled at 1m | |||
| gamma sondes, or handheld XRF instruments, | intervals and half core splits sent to the laboratory. | |||
| etc). These examples should not be taken as limiting the broad meaning of sampling. |
| Samples from each RC interval were collected in a cyclone and split using a 3 level riffle splitter. Wet |
||
| | Include reference to measures taken to ensure | samples were grab sampled for assay and the | ||
| sample representivity and the appropriate | residual sample left to dry for later resampling if | |||
| calibration of any measurement tools or systems | gold values were returned in the initial grab | |||
| used. | sample. | |||
| | Aspects of the determination of mineralisation | | Several drill campaigns were conducted and | |
| that are Material to the Public Report. | samples submitted under different conditions: | |||
| | In cases where ‘industry standard’ work has | WRC001-WRC024: Composite samples over |
||
| been done this would be relatively simple (eg | 4m were submitted for Au (20gm AAS) at | |||
| ‘reverse circulation drilling was used to obtain 1 | SGS Laboratories, Perth. Anomalous 4m | |||
| m samples from which 3 kg was pulverised to | composite samples were then re-run by fire | |||
| produce a 30 g charge for fire assay’). In other | assay of the individual 1m samples. | |||
| cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information. |
WRC025-WRC046 had 1m samples sent to SGS Labs for analysis by AAS determination on 20gm samples after aqua regia digestion. Samples > 0.5 g/t Au were repeated by fire assay using a 50gm sample. |
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| WRC047-WRC086 were subject to a similar |
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| laboratory analysis as above, with initial AAS | ||||
| determination after aqua regia digestion, | ||||
| followed by fire assay analysis on samples | ||||
| >0.5 g/t Au. Samples returning >5 g/t Au | ||||
| were re-checked by fire assay using a re- | ||||
| split from the original coarse residue. | ||||
| WRC087-WRC132 had 1m samples sent to |
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| AAL for analysis by 50gm fire assay. | ||||
| Analysis procedure for WRC133-WRC147 is |
||||
| not detailed in technical reports, however, it | ||||
| is believed that 1m samples were submitted | ||||
| for 50gm fire assay. | ||||
| Drilling | | Drill type (eg core, reverse circulation, open-hole | |
According to historical annual reports, RC drilling |
| techniques | hammer, rotary air blast, auger, Bangka, sonic, | utilised a nominal 4½ inch diameter face-sampling | ||
| etc) and details (eg core diameter, triple or | hammer. | |||
| standard tube, depth of diamond tails, face- sampling bit or other type, whether core is oriented and if so, by what method, etc). |
| Diamond drillholes were drilled using the HQ triple tube method. |
||
| Drill sample | | Method of recording and assessing core and | | Recoveries for diamond holes (DDH) were |
| recovery | chip sample recoveries and results assessed. | recorded by the geologist in the field at the time of | ||
| | Measures taken to maximise sample recovery & | drilling/logging. | ||
| ensure representative nature of the samples. | | Recoveries for diamond holes are variable but | ||
| | Whether a relationship exists between sample | generally poor. |
ASX Announcement dated 30 June 2014
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| recovery and grade and whether sample bias | | As only 5 diamond holes were drilled, analysis | ||
| may have occurred due to preferential loss/gain | was not conducted to determine any relationships | |||
| of fine/coarse material. | between sample recovery and grade. | |||
| Logging | | Whether core and chip samples have been | | Systematic logging describes the drillhole lithology |
| geologically and geotechnically logged to a level | and quartz veining to a level of detail to support | |||
| of detail to support appropriate Mineral | appropriate Mineral Resource estimation. | |||
| Resource estimation, mining studies and metallurgical studies. |
| Qualitative logging of samples included (but was not limited to) lithology, mineralogy, veining and |
||
| | Whether logging is qualitative or quantitative in | weathering. | ||
| nature. Core (or costean, channel, etc) photography. |
| Quantitative information was not available at the time of resource estimation, however this will be |
||
| | The total length and percentage of the relevant | followed up by due diligence of the database and | ||
| intersections logged. | associated reports. | |||
| | Every metre (100%) of RC and DD drilling was | |||
| geologically logged and sampled. | ||||
| Sub- | | If core, whether cut or sawn and whether | | Details of core sampling have not yet been found |
| sampling | quarter, half or all core taken. | in historical reports but will be covered in due | ||
| techniques and sample preparation |
|
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. For all sample types, the nature, quality and appropriateness of the sample preparation technique. |
| diligence. All RC samples were collected in a cyclone and split using a 3 level riffle splitter to maximise and maintain a consistent and representative sample. The majority of samples were dry. Wet RC samples were grab sampled. |
| | Quality control procedures adopted for all sub- sampling stages to maximise representivity of samples. |
| RC sampling methods were to industry standard and appear appropriate for the style of mineralisation. |
|
| | Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field |
| Limited field duplicates and coarse residue resplits were collected and analysed. |
|
| duplicate/second-half sampling. | | A sample size of 2-4kg was collected and | ||
| | Whether sample sizes are appropriate to the grain size of the material being sampled. |
considered appropriate and representative for the grain size and style of mineralisation |
||
| Quality of | | The nature, quality and appropriateness of the | | Samples dried, jaw and roll crushed, split and |
| assay data | assaying and laboratory procedures used and | pulverised in a steel mill. Assays from earlier RC | ||
| and | whether the technique is considered partial or | holes analysed by AAS determination on 20gm | ||
| laboratory | total. | sample after aqua regia digestion. Samples | ||
| tests | | For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument |
>0.5g/t Au repeated by fire assay on 50g charge. Assays from later RC holes were determined by 50g fire assay. |
|
| make and model, reading times, calibrations | | Assay and lab techniques were industry standard | ||
| factors applied and their derivation, etc. | at the time of collection and appropriate for the | |||
| | Nature of quality control procedures adopted (eg | style of mineralisation. | ||
| standards, blanks, duplicates, external | | No geophysical or hand-held tools were reported | ||
| laboratory checks) and whether acceptable | as being utilised for the drilling programs in | |||
| levels of accuracy (ie lack of bias) and precision | question. | |||
| have been established. | | Limited field duplicates and coarse residue | ||
| resplits were collected and analysed. | ||||
| Verification | | The verification of significant intersections by | | A very small number of coarse residue samples |
| of sampling | either independent or alternative company | (40) were submitted to an umpire laboratory for | ||
| and assaying | personnel. | independent analysis. The dataset was | ||
| | The use of twinned holes. | considered too small for meaningful conclusions to be derived. |
||
| | Documentation ofprimary data, data entry |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| procedures, data verification, data storage | | No twinning of holes has been conducted to date, | ||
| (physical and electronic) protocols. | according to historical reports. | |||
| | Discuss any adjustment to assay data. | | Limited verification was performed by Geostat | |
| Services at the time of resource estimation in | ||||
| 2009. | ||||
| | No adjustments of assay data have yet been | |||
| discovered in historical reports. | ||||
| Location of | | Accuracy and quality of surveys used to locate | | Drilling was performed prior to 2000 and as such, |
| data points | drill holes (collar and down-hole surveys), | hole locations were surveyed by local contract | ||
| trenches, mine workings and other locations | surveyors, and assumed to be accurate. | |||
| used in Mineral Resource estimation. | | Downhole surveys using camera in rods for RC | ||
| | Specification of the grid system used. | holes WRC133-146. Other RC holes to be | ||
| | Quality and adequacy of topographic control. | reviewed in due diligence. Downhole surveys using Eastman camera for 4 diamond holes |
||
| WDH002, 032, 103, 106. | ||||
| | Grid system used is MGA 94 (Zone 50), with | |||
| conversion of coordinates to a local grid for | ||||
| resource estimation and planning. | ||||
| | Topography surface generated from surveyed drill | |||
| collars. | ||||
| Data spacing | |
Data spacing for reporting of Exploration | | Holes drilled on a total of 18 drill sections with an |
| and | Results. | average 25m spacing along-strike and 20m | ||
| distribution | | Whether the data spacing and distribution is | across-strike. | |
| sufficient to establish the degree of geological | | Data spacing is considered sufficient for the | ||
| and grade continuity appropriate for the Mineral | establishment and classification of an Inferred | |||
| Resource and Ore Reserve estimation | resource with respect to this style of | |||
| procedure(s) and classifications applied. | mineralisation. | |||
| | Whether sample compositing has been applied. | | WRC001-WRC024: Composite 4m samples were | |
| submitted for analysis. Anomalous 4m composite | ||||
| samples were then re-run by fire assay of the | ||||
| individual 1m samples. All later RC holes were not | ||||
| composited and were sampled at 1m intervals. | ||||
| Orientation | | Whether the orientation of sampling achieves | | Most drill holes are planned to intersect the |
| of data in | unbiased sampling of possible structures and | interpreted mineralised structures/lodes as close | ||
| relation to | the extent to which this is known, considering | to a perpendicular angle as possible (subject to | ||
| geological | the deposit type. | physical access). | ||
| structure | ||||
| | If the relationship between the drilling orientation | |
Drilling orientation and subsequent sampling is | |
| and the orientation of key mineralised structures | unbiased in its representation of reported material. | |||
| is considered to have introduced a sampling | ||||
| bias, this should be assessed and reported if | ||||
| material. | ||||
| Sample | | The measures taken to ensure sample security. | | As the drilling was undertaken from 1986-1996, |
| security | detailed documentation of chain of custody was | |||
| not widespread industry standard at that time. | ||||
| Audits or | | The results of any audits or reviews of sampling | | Comparisons were made between aqua regia and |
| reviews | techniques and data. | fire assay (repeat) methods on WRC025 to | ||
| WRC086 to assess reliability. It was considered | ||||
| that fire assays are reliable and should replace | ||||
| aqua regia assays for resource modelling and | ||||
| other applications. | ||||
| | Comparison of 628 repeats with original samples | |||
| show a close and acceptable reconciliation. |
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| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| | It is acknowledged that there could be variability | ||
| imposed by the use of three different laboratories | |||
| over the various programs and minor variations in | |||
| sampling, preparation and analysis methods. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Mineral | | Type, reference name/number, location and | | M47/223 – 100% held by Western Metals Pty |
| tenement and | ownership including agreements or material | Ltd | ||
| land tenure status |
issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national |
| Artemis proposing to acquire 80% from Western Metals (see body of this report) |
|
| park and environmental settings. | | The tenement is in good standing and no known | ||
| | The security of the tenure held at the time of reporting along with any known impediments to |
impediments exist (see map elsewhere in this report for location). |
||
| obtaining a licence to operate in the area. | ||||
| Exploration | | Acknowledgment and appraisal of exploration | | Noranda drilled three percussion holes (WPH1- |
| done by other | by other parties. | 3) in the period 1978-1985. Between 1986 and | ||
| parties | 1988, a large RC drilling campaign involving | |||
| 132 RC holes (WRC01-132) was completed. | ||||
| Five diamond drillholes were also drilled using | ||||
| HQ triple tube for a total of 462m. In 1988 | ||||
| Noranda became Pioneer Minerals, then | ||||
| Plutonic Gold in 1990; which was subsequently | ||||
| taken over in 1998 by Homestake Gold Mining. | ||||
| | In 1990, Homestake completed a preliminary | |||
| sectional resource estimate of 238,300t @ | ||||
| 3.49g/t Au, using a 1g/t Au lower cut-off and a | ||||
| specific gravity of 2.0 down to a depth of 50- | ||||
| 60m. This was followed by a further 15 RC | ||||
| drillholes (WRC133-147) drilled in 1996/97 to | ||||
| test the depth and strike extent of the known | ||||
| mineralisation. | ||||
| Geology | | Deposit type, geological setting and style of | | The geological setting of the Weerianna gold |
| mineralisation. | deposit is within a chert-ultramafic schist | |||
| sequence between two basaltic terrains. The | ||||
| deposit lies on the overturned eastern limb of an | ||||
| east-northeast trending syncline, located | ||||
| northwest of the main regional anticlinal | ||||
| structure. Mineralisation at Weerianna is | ||||
| associated with quartz veins within chlorite- | ||||
| serpentinite schists with variable degrees of | ||||
| silicification and carbonate alteration. Quartz | ||||
| veining is controlled by the schistosity, which | ||||
| forms parallel to the bedding orientation of the | ||||
| host rocks. | ||||
| Drill hole | | A summary of all information material to the | | Drillhole details are listed in Table 3 in the report |
| Information | understanding of the exploration results | above. | ||
| including a tabulation of the following information for all Material drill holes: |
| Details are provided in local grid co-ordinates. The MGA equivalents are being confirmed |
||
o easting and northing of the drill hole collar |
during the due diligence period. | |||
o elevation or RL (Reduced Level – elevation |
||||
| above sea level in metres) of the drill hole | ||||
| collar | ||||
o dip and azimuth of the hole |
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| Criteria | JORC Code explanation | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|---|
o down hole length and interception depth |
|||||
o hole length. |
|||||
| | If the exclusion of this information is justified on | ||||
| the basis that the information is not Material and | |||||
| this exclusion does not detract from the | |||||
| understanding of the report, the Competent | |||||
| Person should clearly explain why this is the | |||||
| case. | |||||
| Data | | In reporting Exploration Results, weighting | | No exploration results are reported in this | |
| aggregation | averaging techniques, maximum and/or | announcement. | |||
| methods | minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. |
| Exploration results have been reported previously in historical annual reports as length- weighted averages. An example would be from |
||
| | Where | aggregate intercepts incorporate short | WRC-17 as follows: | ||
| lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some |
From (m) To (m) Au_Ave 47 48 9 48 49 4.805 |
||||
| typical examples of such aggregations should | 49 50 1.46 |
||||
| be shown in detail. | 50 51 1.07 |
||||
| | The assumptions used for any reporting of metal equivalent values should be clearly stated. |
Weighted average= ((1x9)+(1x4.805)+(1x1.46)+(1x1.07))/(1+1+1+1) = 4m at 4.09 g/t Au |
|||
| | No metal equivalents are used for reporting. | ||||
| Relationship | | These relationships are particularly important in | | Specific exploration results and intercept | |
| between | the reporting of Exploration Results. | lengths are not provided in this release. | |||
| mineralisation | |||||
| widths and | | If the geometry of the mineralisation with | | Where possible, drillholes were aligned to | |
| intercept lengths | respect to the drill hole angle is known, its nature should be reported. |
intersect the mineralisation as close to perpendicular as possible, thus reflecting close |
|||
| | If it is not known and only the down hole lengths | to true width. | |||
| are reported, there should be a clear statement | |||||
| to this effect (eg ‘down hole length, true width | |||||
| not known’). | |||||
| Diagrams | | Appropriate maps and sections (with scales) | | A planview of drillhole collar locations and | |
| and tabulations of intercepts should be included | schematic cross section are shown below. | ||||
| for any | significant discovery being reported | ||||
| These should include, but not be limited to a | |||||
| plan view of drill hole collar locations and | |||||
| appropriate sectional views. | |||||
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Balanced | | Where comprehensive reporting of all | | It is not practical to report all exploration results. |
| reporting | Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. |
| Exploration results of all drilling have been reported in historical annual reports where the length-weighted average has exceeded 1g/t Au. Holes where no significant assays have been returned have also been reported. |
|
| Other | | Other exploration data, if meaningful and | | No other significant exploration work has been |
| substantive | material, should be reported including (but not | done by Artemis or Western Metals Pty Ltd to | ||
| exploration data | limited to): geological observations; geophysical | date. | ||
| survey results; geochemical survey results; bulk | ||||
| samples – size and method of treatment; | ||||
| metallurgical test results; bulk density, | ||||
| groundwater, geotechnical and rock | ||||
| characteristics; potential deleterious or | ||||
| contaminating substances. | ||||
| Further work | | The nature and scale of planned further work | | Subject to completion of the proposed |
| (eg tests for lateral extensions, depth | acquisition, Artemis will plan to undertake initial | |||
| extensions or large-scale step-out drilling). | review of all existing data for the project and | |||
| | Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling |
define a work program to assess the exploration potential and design additional drilling to confirm and expand the existing resource. |
||
| areas, provided this information is not | | The resource is open at depth, and also | ||
| commercially sensitive. | between the respective mineralisation zones. | |||
| Diagrams will be provided once Artemis has | ||||
| completed its reviews and planning. |
Section 3 Estimation and Reporting of Mineral Resources
| (Criteria listed in section 1 also applyto this section.) | (Criteria listed in section 1 also applyto this section.) | (Criteria listed in section 1 also applyto this section.) | ||
|---|---|---|---|---|
| Criteria | JORC Code explanation | Commentary | ||
| Database | | Measures taken to ensure that data has not been | | An Access 2007 database and Excel files were |
| integrity | corrupted by, for example, transcription or keying | supplied to Geostat Services for use in the | ||
| errors, between its initial collection and its use for | 2009 resource estimate. | |||
| Mineral Resource estimation purposes. | | Data validaton steps included, but were not | ||
| | Data validation procedures used. | limited to the following: | ||
| - Validation through database |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| constraints eg overlapping/missing | ||||
| intervals, intervals exceeding | ||||
| maximum depth, missing assays. | ||||
| - Validation through 3D visualisation in |
||||
| 3D software to check for any obvious | ||||
| collar, downhole survey, or assay | ||||
| import errors. | ||||
| | Limited random checks were conducted | |||
| between reported assays in annual reports | ||||
| with those supplied to Geostat. | ||||
| Site visits | | Comment on any site visits undertaken by the | | Geostat did not undertake a site visit, as the |
| Competent Person and the outcome of those visits. | original intention of the resource estimate was | |||
| | If no site visits have been undertaken indicate why this is the case. |
for a private company and not for public release. |
||
| Geological | | Confidence in (or conversely, the uncertainty of ) | | The confidence in the geological interpretation |
| interpretation | the geological interpretation of the mineral deposit. | is considered to be relatively good. | ||
| | Nature of the data used and of any assumptions | | Detailed geological logging and surface | |
| made. | mapping allow extrapolations of mineralisation | |||
| | The effect, if any, of alternative interpretations on | intersections from section to section. | ||
| Mineral Resource estimation. | | The Mineral Resource is relatively robust and | ||
| | The use of geology in guiding and controlling Mineral Resource estimation. |
well-defined from existing drillholes, and as such, alternative interpretations will result in similar tonnage and grade. |
||
| | The factors affecting continuity both of grade and geology. |
| Geological boundaries generally correspond well with the spatial locations of the |
|
| mineralisation. | ||||
| | Quartz vein zones associated with schistosity | |||
| are interpreted to be the key factors affecting | ||||
| mineralisation continuity. | ||||
| Dimensions | | The extent and variability of the Mineral Resource | | Four mineralisation zones comprise the |
| expressed as length (along strike or otherwise), | deposit with an overall E-W trend and steep | |||
| plan width, and depth below surface to the upper | dip of approximately -80° towards grid south. | |||
| and lower limits of the Mineral Resource. | | The combined mineralisation zones extend | ||
| over 600m along strike, with maximum down- | ||||
| dip extent of 110m. | ||||
| Estimation and | | The nature and appropriateness of the estimation | | The Mineral Resource was estimated using |
| modelling | technique(s) applied and key assumptions, | ordinary kriging (OK) interpolation in Surpac | ||
| techniques | including treatment of extreme grade values, | mining software. | ||
| domaining, interpolation parameters and maximum distance of extrapolation from data points. If a computer assisted estimation method was chosen include a description of computer software and parameters used. |
|
Four distinct mineralisation zones comprise the deposit with an overall E-W trend and steep dip of approximately -80° towards grid south. 16 wireframes were delineated from sectional outlines to represent all mineralisation within |
||
| | The availability of check estimates, previous | these zones. Each wireframe was treated as a | ||
| estimates and/or mine production records and | separate interpolation domain, with | |||
| whether the Mineral Resource estimate takes | interpolation of grades limited to blocks within | |||
| appropriate account of such data. | each domain (wireframe). | |||
| | The assumptions made regarding recovery of by- | | A top-cut of either 10 or 20 g/t Au was applied | |
| products. | to selected lodes where the coefficient of | |||
| | Estimation of deleterious elements or other non- grade variables of economic significance (eg |
variation was high and/or there was a large variance present. |
||
| sulphur for acid mine drainage characterisation). | | A minimum of 4 composites and a maximum of |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| | In the case of block model interpolation, the block | 25 composites were used in interpolation of | ||
| size in relation to the average sample spacing and | grades into blocks. | |||
| the search employed. | | A block model of parent cell size 4m (N) x | ||
| | Any assumptions behind modelling of selective | 12.5m (E) x 5m (RL) sub-celled to 1m x 6.25m | ||
| mining units. | x 2.5m was used for resource estimation. | |||
| | Any assumptions about correlation between | | Search ellipses for initial interpolation of | |
| variables. | grades comprised 50m x 25m x 10m. A | |||
| | Description of how the geological interpretation was used to control the resource estimates. |
second subsequent interpolation pass was employed with expanded search ellipses in order to fill blocks in areas of sparse drill |
||
| | Discussion of basis for using or not using grade | density within the lodes. | ||
| cutting or capping. | | 2 earlier non-JORC compliant resource | ||
| | The process of validation, the checking process used, the comparison of model data to drill hole data, and use of reconciliation data if available. |
estimates were available for comparison, albeit with smaller datasets and were consistent given the drilling at the time in comparison with the current Geostat estimate. |
||
| | No assumptions have been made regarding | |||
| recovery of by-products. | ||||
| | No estimation of any deleterious elements has | |||
| been made. | ||||
| | A combination of assays and lithology were | |||
| used to define the wireframe envelopes, with a | ||||
| cut-off of approximately 0.5 g/t Au to separate | ||||
| mineralisation from waste. | ||||
| | The resource estimate was validated by visual | |||
| validations on screen, global statistical | ||||
| comparisons of input composite grades and | ||||
| block grades, and local grade/depth graphical | ||||
| relationships. | ||||
| Moisture | | Whether the tonnages are estimated on a dry basis | |
Tonnages are estimated on a dry basis. |
| or with natural moisture, and the method of | ||||
| determination of the moisture content. | ||||
| Cut-off | | The basis of the adopted cut-off grade(s) or quality | | A nominal cut-off of 1.0g/t Au corresponds with |
| parameters | parameters applied. | the visual mineralisation as determined by | ||
| quartz veining within schistosity and effectively | ||||
| maps the mineralised zones. This cut-off was | ||||
| also chosen to reflect reasonable prospect for | ||||
| economic extraction at the appropriate grade | ||||
| population. | ||||
| Mining factors | | Assumptions made regarding possible mining | | The mining scenario of the deposit as shown |
| or assumptions | methods, minimum mining dimensions and internal | to be economically viable would likely be a | ||
| (or, if applicable, external) mining dilution. It is | small open pit. Geostat has not fully assessed | |||
| always necessary as part of the process of | the potential mining parameters. Further | |||
| determining reasonable prospects for eventual | studies are planned to address possible | |||
| economic extraction to consider potential mining | mining scenarios given current economic | |||
| methods, but the assumptions made regarding | factors. | |||
| mining methods and parameters when estimating | ||||
| Mineral Resources may not always be rigorous. | ||||
| Where this is the case, this should be reported with | ||||
| an explanation of the basis of the mining | ||||
| assumptions made. | ||||
| Metallurgical | | The basis for assumptions or predictions regarding | | Geostat is not aware of specific metallurgical |
| factors or | metallurgical amenability. It is always necessary as | testwork to date at Weerianna. | ||
| assumptions | part of the process of determining reasonable prospects for eventual economic extraction to |
| It is thought that simple CIL/CIP gold recovery |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| consider potential metallurgical methods, but the | methods may be appropriate but is yet to be | |||
| assumptions regarding metallurgical treatment | confirmed. | |||
| processes and parameters made when reporting | ||||
| Mineral Resources may not always be rigorous. | ||||
| Where this is the case, this should be reported with | ||||
| an explanation of the basis of the metallurgical | ||||
| assumptions made. | ||||
| Environmental | | Assumptions made regarding possible waste and | | No assumptions at this stage in regards to |
| factors or | process residue disposal options. It is always | environmental factors or assumptions have | ||
| assumptions | necessary as part of the process of determining | been made. | ||
| reasonable prospects for eventual economic | ||||
| extraction to consider the potential environmental | ||||
| impacts of the mining and processing operation. | ||||
| While at this stage the determination of potential | ||||
| environmental impacts, particularly for a | ||||
| greenfields project, may not always be well | ||||
| advanced, the status of early consideration of | ||||
| these potential environmental impacts should be | ||||
| reported. Where these aspects have not been | ||||
| considered this should be reported with an | ||||
| explanation of the environmental assumptions | ||||
| made. | ||||
| Bulk density | | Whether assumed or determined. If assumed, the basis for the assumptions. If determined, the |
| An assumed density of 2.2t/m3(oxide), 2.6t/m3 (transitional) and 2.8t/m3(primary) was used to |
| method used, whether wet or dry, the frequency of | estimate resource block tonnage for all lodes. | |||
| the measurements, the nature, size and | These are considered to be in line with | |||
| representativeness of the samples. | regional estimates. | |||
| | The bulk density for bulk material must have been | | No bulk density measurements have been | |
| measured by methods that adequately account for | conducted to date. This is planned as a priority | |||
| void spaces (vugs, porosity, etc), moisture and | to validate current assumed densities. | |||
| differences between rock and alteration zones within the deposit. |
| A digital terrain model (DTM) has been used to discriminate between the oxide, transitional |
||
| | Discuss assumptions for bulk density estimates | and primary boundaries and is based on | ||
| used in the evaluation process of the different | geological logging of the drill holes. | |||
| materials. | ||||
| Classification | | The basis for the classification of the Mineral | | Mineral Resources have been classified in the |
| Resources into varying confidence categories. | Inferred category in accordance with the JORC | |||
| | Whether appropriate account has been taken of all relevant factors (ie relative confidence in tonnage/grade estimations, reliability of input data, confidence in continuity of geology and metal values, quality, quantity and distribution of the |
Code 2012 guidelines. Classification of the resource involved several criteria, including drillhole spacing, sampling density, sampling locations, lode geometry, QAQC, bulk density and confidence in grade continuity. |
||
| data). | | Lodes were classified as Inferred on the basis | ||
| | Whether the result appropriately reflects the Competent Person’s view of the deposit. |
of the above criteria and this is considered appropriate given the existing data. |
||
| | The resource estimate and classification result | |||
| reflects the view of the Competent Person. | ||||
| Audits or | | The results of any audits or reviews of Mineral | | No audits or reviews of the Geostat resource |
| reviews | Resource estimates. | have been conducted to date. Artemis plans to | ||
| conduct a full review of the Mineral Resource. | ||||
| Discussion of | | Where appropriate a statement of the relative | | The relative accuracy of the Mineral Resource |
| relative | accuracy and confidence level in the Mineral | is reflected in the classification of the Mineral | ||
| accuracy/ | Resource estimate using an approach or | Resource in the Inferred category as per the | ||
| confidence | procedure deemed appropriate by the Competent | guidelines of the 2012 JORC Code. | ||
| Person. For example, the application of statistical orgeostatisticalprocedures toquantify the relative |
| Relative accuracy and confidence has been |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| accuracy of the resource within stated confidence | assessed through validation of the model as | |||
| limits, or, if such an approach is not deemed | outlined above. | |||
| appropriate, a qualitative discussion of the factors that could affect the relative accuracy and confidence of the estimate. |
| The Mineral Resource statement reflects the assumed accuracy and confidence as a global estimate. |
||
| | The statement should specify whether it relates to global or local estimates, and, if local, state the relevant tonnages, which should be relevant to technical and economic evaluation. Documentation should include assumptions made and the |
|
Details of historical production and the exact location of extraction are not available and hence are not appropriate to compare to this most recent resource estimate. |
|
| procedures used. | ||||
| | These statements of relative accuracy and | |||
| confidence of the estimate should be compared | ||||
| with production data, where available. |
JORC Code, 2012 Edition – Table 2: Carlow Castle
Section 1 Sampling Techniques and Data
| Section 1 Sampling Techniques and Data | Section 1 Sampling Techniques and Data | Section 1 Sampling Techniques and Data | ||
|---|---|---|---|---|
| (Criteriainthis sectionapply to allsucceeding sections.) | ||||
| Criteria | JORC Code explanation | Commentary | ||
| Sampling | | Nature and quality of sampling (eg cut channels, | | The only samples used in the resource |
| techniques | random chips, or specific specialised industry | estimate are splits of chips collected during | ||
| standard measurement tools appropriate to the | Reverse Circulation (RC) drilling and split | |||
| minerals under investigation, such as down hole | diamond core. | |||
| gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. |
| No records available on actual splitting and sampling or QA/QC procedures followed. |
||
| | Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. |
| All drill holes were sampled the whole length of the holes. The RC samples were taken at fixed 1m intervals however the diamond core sample intervals appear to have been governed by logged lithologies. |
|
| | Aspects of the determination of mineralisation that are Material to the Public Report. |
| No details are available on the assay methods used for the diamond drill core however the |
|
| | In cases where ‘industry standard’ work has been | RC drill samples were analysed by Genalysis | ||
| done this would be relatively simple (eg ‘reverse | Labs using the B/AAS method (Aqua Regia | |||
| circulation drilling was used to obtain 1 m samples | digest (10g charge)/Atomic Absorption | |||
| from which 3 kg was pulverised to produce a 30 g | Spectroscopy finish). | |||
| charge for fire assay’). In other cases more | ||||
| explanation may be required, such as where there | ||||
| is coarse gold that has inherent sampling | ||||
| problems. Unusual commodities or mineralisation | ||||
| types (eg submarine nodules) may warrant | ||||
| disclosure of detailed information. | ||||
| Drilling | | Drill type (eg core, reverse circulation, open-hole | | All the drilling used in the resource modelling |
| techniques | hammer, rotary air blast, auger, Bangka, sonic, | was RC drilling and diamond drilling. No | ||
| etc) and details (eg core diameter, triple or | records available describing the drilling | |||
| standard tube, depth of diamond tails, face- | procedures followed. | |||
| sampling bit or other type, whether core is oriented | ||||
| and if so, by what method, etc). | ||||
| Drill sample | | Method of recording and assessing core and chip | | No records are available describing the sample |
| recovery | sample recoveries and results assessed. | qualities and recoveries. | ||
| | Measures taken to maximise sample recovery and | |||
| ensure representative nature of the samples. |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| | Whether a relationship exists between sample | |||
| recovery and grade and whether sample bias may | ||||
| have occurred due to preferential loss/gain of | ||||
| fine/coarse material. | ||||
| Logging | | Whether core and chip samples have been | | No geological logs available for drilling |
| geologically and geotechnically logged to a level of | samples. The mineralisation is however | |||
| detail to support appropriate Mineral Resource | controlled by shears easily recognised by | |||
| estimation, mining studies and metallurgical | assay results. | |||
| studies. | ||||
| | Whether logging is qualitative or quantitative in | |||
| nature. Core (or costean, channel, etc) | ||||
| photography. | ||||
| | The total length and percentage of the relevant | |||
| intersections logged. | ||||
| Sub-sampling | | If core, whether cut or sawn and whether quarter, | | No details available on sampling methods |
| techniques and | half or all core taken. | used. | ||
| sample preparation |
| If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. |
||
| | For all sample types, the nature, quality and | |||
| appropriateness of the sample preparation | ||||
| technique. | ||||
| | Quality control procedures adopted for all sub- | |||
| sampling stages to maximise representivity of | ||||
| samples. | ||||
| | Measures taken to ensure that the sampling is | |||
| representative of the in situ material collected, | ||||
| including for instance results for field | ||||
| duplicate/second-half sampling. | ||||
| | Whether sample sizes are appropriate to the grain | |||
| size of the material being sampled. | ||||
| Quality of | | The nature, quality and appropriateness of the | | Copies of “original” laboratory assay results as |
| assay data and | assaying and laboratory procedures used and | spread sheets are only available for RC | ||
| laboratory tests | whether the technique is considered partial or total. | drilling. These records indicate that normal | ||
| | For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors |
laboratory QA/QC procedures were followed with regular insertion of standards and blanks and duplicates. Repeatability was within expected limits. |
||
| applied and their derivation, etc. | ||||
| | Nature of quality control procedures adopted (eg | |||
| standards, blanks, duplicates, external laboratory | ||||
| checks) and whether acceptable levels of accuracy | ||||
| (ie lack of bias) and precision have been | ||||
| established. | ||||
| Verification of | | The verification of significant intersections by either | |
No independent verification of the data was |
| sampling and | independent or alternative company personnel. | made by AM&A. | ||
| assaying | | The use of twinned holes. | | No twinned holes have been drilled to check |
| | Documentation of primary data, data entry | quality of original drilling. | ||
| procedures, data verification, data storage | | No documentation of data collection, data | ||
| (physical and electronic) protocols. | entry, data verification procedures and data | |||
| | Discuss any adjustment to assay data. | storage protocols available. | ||
| Location of | | Accuracy andquality of surveys used to locate drill | | Norecords available describing themethod(s) |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| data points | holes (collar and down-hole surveys), trenches, | used to survey drill hole collars. The accuracy | ||
| mine workings and other locations used in Mineral | of drill hole collar surveys cannot be verified. | |||
| Resource estimation. | ||||
| | Specification of the grid system used. | |||
| | Quality and adequacy of topographic control. | |||
| Data spacing | | Data spacing for reporting of Exploration Results. | | AM&AA believe that the spacing of the drilling |
| and distribution | |
Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation |
along the shears at Carlow Castle South, on sections at approximately 50m spacing, is sufficient for an Inferred resource estimate only. |
|
| procedure(s) and classifications applied. | | Since the bulk of the sampling used in the | ||
| | Whether sample compositing has been applied. | resource estimates, the RC drilling, is sampled at fixed 1m intervals there was no sample |
||
| compositing. | ||||
| Orientation of | | Whether the orientation of sampling achieves | | The intersection angle of the drilling with |
| data in relation | unbiased sampling of possible structures and the | respect to the mineralisation was variable, but | ||
| to geological | extent to which this is known, considering the | generally at approximately 50-70 degrees, | ||
| structure | deposit type. | making most drill intersections longer than the | ||
| | If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. |
true width of the mineralisation. The resource modelling software uses the data in 3D and so compensates for the wider apparent thicknesses. |
||
| Sample | | The measures taken to ensure sample security. | | No records are available describing the |
| security | procedures followed to ensure sample security | |||
| so tampering is possible. | ||||
| Audits or | | The results of any audits or reviews of sampling | | There have been no audits or reviews of the |
| reviews | techniques and data. | sampling techniques or data. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria JORC Code explanation |
Commentary | Commentary | Commentary | Commentary | Commentary | Commentary | Commentary |
|---|---|---|---|---|---|---|---|
| Mineral tenement and land tenure status Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. |
The resource lies entirely within 47/1797-1 which is registered with Legend Mining Limited and is due to expire on 6/5/2018 after being extended from 6/5/2013. Artemis Resources Ltd, through its wholly owned subsidiary KML No. 2 Pty Ltd, purchased the tenement from Legend Mining Ltd on the 12th June 2012. At the time of this report ownership of licence 47/1797-I was in the process of being transferred to Artemis Mining Ltd through the Western Australian Department of Mines and Petroleum. See body of report for comments on plaint action. |
||||||
| Exploration done by other parties Acknowledgment and appraisal of exploration by other parties. |
The RC drilling which makes up most of the sampling data used for the resource estimate was carried out by Legend Mining Limited |
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| Geology Deposit type, geological setting and style of mineralisation. |
The gold/copper mineralisation is structurally controlled by faulting in basalts and may be related to nearby dolerite intrusion |
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| Drill hole Information A summary of all information material to the understanding of the exploration |
Series | Type | Company | Year Drilled |
No. Holes |
Total **Depth ** |
|
| ASX Announcement dated 30 June 2014 | 19 |
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| Criteria JORC Code explanation |
Commentary | Commentary | Commentary | Commentary | Commentary | Commentary |
|---|---|---|---|---|---|---|
| results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill holecollar o elevation or RL (Reduced Level –elevation above sea level in metres) of the drill hole collar o dip and azimuth of the holeo down hole length and interceptiondepth o hole length. If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case. |
CC | RC | Legend | 1995-2000 | 64 | 4,182.00 |
| CT | ? | ? | ? | 5 | 305.00 | |
| DDH | Diamond | Consolidated Goldfields |
1969 | 4 | 429.50 | |
| PDH | Rotary Percussion |
Amax | 1972 | 12 | 255.50 | |
| TOTAL | 85 | 5,172.00 | ||||
| Data aggregation methods In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. The assumptions used for any reporting of metal equivalent values should be clearly stated. |
All intersections quoted in text are length weighted averages and all resource estimates are tonnage weighted averages All resource grades quoted are for gold and copper individually. Au ppm + Cu% was used to determine modelling limits since Au ppm has an approximate equal contained metal value as Cu%. |
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| Relationship between mineralisation widths and intercept lengths These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg ‘down hole length, true width not known’). |
The resource modelling was carried out in 3D and all apparent widths accounted for in the estimation method. |
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| Diagrams Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views. |
Drill hole collar plan and representative cross section of the deposit and mineralisation are included in the body of this report. |
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| Balanced reporting Where comprehensive reporting of all Exploration Results is not practicable, |
The composite grades used in all the drill holes in the resource model are as follows: |
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| Criteria | JORC Code explanation Commentary |
|---|---|
| representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. Hole ID Stratigraphy From To Au g/t Cu ppm CC42 OXIDE 13 31 0.36 3,722 CC42 SULPHIDE 31 32 0.42 1,750 CC42 SULPHIDE 47 63 3.95 8,880 CC43 OXIDE 21 29 0.79 7,148 CC43 SULPHIDE 29 68 0.52 7,073 CC43 SULPHIDE 77 93 3.60 5,251 CC44 OXIDE 3 28 0.96 5,859 CC44 SULPHIDE 37 50 2.01 5,290 CC45 SULPHIDE 62 73 0.57 3,464 CC45 SULPHIDE 80 90 2.40 6,506 CC46 SULPHIDE 46 60 0.71 5,216 CC46 SULPHIDE 69 74 0.92 6,134 CC47 OXIDE 6 12 0.36 3,108 CC47 OXIDE 16 21 1.66 4,232 CC48 SULPHIDE 37 38 0.70 1,388 CC49 SULPHIDE 70 81 0.87 2,494 CC50 SULPHIDE 41 51 1.11 5,681 CC51 OXIDE 20 30 0.69 4,252 CC51 SULPHIDE 30 40 0.88 3,182 CC51 SULPHIDE 43 62 2.35 7,229 CC52 OXIDE 3 17 9.39 12,226 CC56 OXIDE 26 30 0.40 1,586 CC56 SULPHIDE 30 38 0.67 4,325 CC56 SULPHIDE 50 57 0.89 8,606 CC56A SULPHIDE 54 68 0.79 6,548 CC57 SULPHIDE 63 65 0.63 4,687 CC57 SULPHIDE 107 115 0.68 4,281 CC59 SULPHIDE 67 70 0.29 2,639 CC60 SULPHIDE 44 57 0.06 831 CC60 SULPHIDE 58 76 0.96 2,707 CC61 SULPHIDE 81 90 0.15 851 The assays for highest grade hole, CC52, in the oxide zone are as follows: |
|
| Hole ID Stratigraphy From To Au g/t Cu ppm CC52 OXIDE 3 4 2.40 4,296 CC52 OXIDE 4 5 7.33 4,515 CC52 OXIDE 5 6 7.23 15,900 CC52 OXIDE 6 7 28.62 33,600 CC52 OXIDE 7 8 15.55 23,100 CC52 OXIDE 8 9 0.38 918 CC52 OXIDE 9 10 4.41 3,923 CC52 OXIDE 10 11 29.41 12,400 CC52 OXIDE 11 12 3.10 5,921 CC52 OXIDE 12 13 1.84 4,426 CC52 OXIDE 13 14 9.35 48,800 CC52 OXIDE 14 15 3.76 5,716 CC52 OXIDE 15 16 17.01 3,537 CC52 OXIDE 16 17 1.05 4,116 |
|
| Other substantive exploration data Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances. No other exploration data other than local geology maps were considered in the resource estimate. |
|
| Further work The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out Further detailed mapping, trenching, geochemical sampling and infill drilling was recommended, especially to test potential for highgrademineralisationat the |
Criteria JORC Code explanation
| Hole ID | Stratigraphy | From | To | Au g/t | Cu ppm | ||||
|---|---|---|---|---|---|---|---|---|---|
| CC52 | OXIDE | 3 | 4 |
2.40 | 4,296 | ||||
| CC52 | OXIDE | 4 | 5 |
7.33 | 4,515 | ||||
| CC52 | OXIDE | 5 | 6 |
7.23 | 15,900 | ||||
| CC52 | OXIDE | 6 | 7 |
28.62 | 33,600 | ||||
| CC52 | OXIDE | 7 | 8 |
15.55 | 23,100 | ||||
| CC52 | OXIDE | 8 | 9 |
0.38 | 918 | ||||
| CC52 | OXIDE | 9 | 10 |
4.41 | 3,923 | ||||
| CC52 | OXIDE | 10 | 11 |
29.41 | 12,400 | ||||
| CC52 | OXIDE | 11 | 12 |
3.10 | 5,921 | ||||
| CC52 | OXIDE | 12 | 13 |
1.84 | 4,426 | ||||
| CC52 | OXIDE | 13 | 14 |
9.35 | 48,800 | ||||
| CC52 | OXIDE | 14 | 15 |
3.76 | 5,716 | ||||
| CC52 | OXIDE | 15 | 16 |
17.01 | 3,537 | ||||
| CC52 | OXIDE | 16 | 17 |
1.05 | 4,116 | ||||
| Other | | Other exploration data, if meaningful and | | No other exploration data | other than | local geology maps | |||
| substantive | material, should be reported including | were considered in the resource estimate. | |||||||
| exploration | (but not limited to): geological | ||||||||
| data | observations; geophysical survey results; | ||||||||
| geochemical survey results; bulk samples | |||||||||
| – size and method of treatment; | |||||||||
| metallurgical test results; bulk density, | |||||||||
| groundwater, geotechnical and rock | |||||||||
| characteristics; potential deleterious or | |||||||||
| contaminating substances. | |||||||||
| Further work | | The nature and scale of planned further | | Further detailed mapping, | trenching, | geochemical | |||
| work (eg tests for lateral extensions or | sampling and infill drilling | was recommended, especially | |||||||
| depth extensions or large-scale step-out | to test potential for | highgrademineralisation | at the |
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| Criteria | JORC Code explanation Commentary |
JORC Code explanation Commentary |
JORC Code explanation Commentary |
JORC Code explanation Commentary |
|---|---|---|---|---|
| drilling). intersection of two major shear trends (EW with NS). |
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| | Diagrams clearly highlighting the areas of | |||
| possible extensions, including the main | ||||
| geological interpretations and future | ||||
| drilling areas, provided this information is | ||||
| not commercially sensitive. | ||||
| Section 3 Estimation and Reporting of Mineral Resources | ||||
| (Criterialistedinsection 1, andwhererelevantinsection 2, also apply to this | section.) | |||
| Criteria | JORC Code explanation | Commentary | ||
| Database | | Measures taken to ensure that data has not been | | Data used as received but checked for Hole ID |
| integrity | corrupted by, for example, transcription or keying | and sample interval errors by MineMap © | ||
| errors, between its initial collection and its use for | software. Some RC sample assays in | |||
| Mineral Resource estimation purposes. | database were checked against laboratory | |||
| | Data validation procedures used. | spread sheets and no errors were found. | ||
| Site visits | | Comment on any site visits undertaken by the | | No representative from AM&A has visited the |
| Competent Person and the outcome of those visits. | site. It was not considered necessary for an | |||
| | If no site visits have been undertaken indicate why this is the case. |
Inferred resource estimate considering that the deposit modelled has a thin Quaternary soil cover making it impossible to view fresh |
||
| outcrop. | ||||
| Geological | | Confidence in (or conversely, the uncertainty of ) | | The mineralisation is controlled by shears |
| interpretation | the geological interpretation of the mineral deposit. | dipping steeply to the north with some higher | ||
| | Nature of the data used and of any assumptions made. |
grade mineralisation may be located at the intersection of the main EW structures with mineralised NS shears. The mineralisation |
||
| | The effect, if any, of alternative interpretations on Mineral Resource estimation. |
cannot be mapped at the surface due to soil cover however can be confidently interpreted |
||
| from drilling data. Some supergene effects | ||||
| | The use of geology in guiding and controlling | may have remobilised and possibly enriched | ||
| Mineral Resource estimation. | some of the mineralisation in the upper | |||
| | The factors affecting continuity both of grade and | oxidised zone. | ||
| geology. | ||||
| Dimensions | | The extent and variability of the Mineral Resource | | The mineralisation is not properly closed off |
| expressed as length (along strike or otherwise), | along strike or down dip. | |||
| plan width, and depth below surface to the upper | ||||
| and lower limits of the Mineral Resource. | ||||
| Estimation and | | The nature and appropriateness of the estimation | | The resource modelling was done with |
| modelling | technique(s) applied and key assumptions, | MineMap © software by interpolating grades | ||
| techniques | including treatment of extreme grade values, | into a digital block model using an Inverse | ||
| domaining, interpolation parameters and maximum | Distance Cubed (ID3) algorithm confined by | |||
| distance of extrapolation from data points. If a | wire framing of the >0.5 Au ppm + Cu% | |||
| computer assisted estimation method was chosen | mineralised zones with 50m search radii along | |||
| include a description of computer software and | and across strike and 20m up and down dip. | |||
| parameters used. | | AM&A considers that these modelling | ||
| | The availability of check estimates, previous | parameters are appropriate for an Inferred | ||
| estimates and/or mine production records and | resource of the type and style of mineralisation | |||
| whether the Mineral Resource estimate takes | being modelled. | |||
| appropriate account of such data. | ||||
| | The assumptions made regarding recovery of by- | |||
| products. | ||||
| | Estimation of deleterious elements or other non- | |||
| grade variables of economic significance(eg |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| sulphur for acid mine drainage characterisation). | ||||
| | In the case of block model interpolation, the block | |||
| size in relation to the average sample spacing and | ||||
| the search employed. | ||||
| | Any assumptions behind modelling of selective | |||
| mining units. | ||||
| | Any assumptions about correlation between | |||
| variables. | ||||
| | Description of how the geological interpretation | |||
| was used to control the resource estimates. | ||||
| | Discussion of basis for using or not using grade | |||
| cutting or capping. | ||||
| | The process of validation, the checking process | |||
| used, the comparison of model data to drill hole | ||||
| data, and use of reconciliation data if available. | ||||
| Moisture | | Whether the tonnages are estimated on a dry basis | |
All tonnes and grades are on a dry basis. |
| or with natural moisture, and the method of | ||||
| determination of the moisture content. | ||||
| Cut-off | | The basis of the adopted cut-off grade(s) or quality | | The resource modelling was confined by wire |
| parameters | parameters applied. | framing of the >0.5 Au ppm + Cu% mineralised | ||
| zones. | ||||
| | Au ppm + Cu% was used to determine | |||
| modelling limits since Au ppm has an | ||||
| approximate equal contained metal value as | ||||
| Cu%. | ||||
| Mining factors | | Assumptions made regarding possible mining | | No mining factors were considered for the |
| or assumptions | methods, minimum mining dimensions and internal | resource estimate although it was assumed | ||
| (or, if applicable, external) mining dilution. It is | that it is most likely that if the deposit is | |||
| always necessary as part of the process of | eventually mined it will be mined using the | |||
| determining reasonable prospects for eventual | open pit mining method. | |||
| economic extraction to consider potential mining | ||||
| methods, but the assumptions made regarding | ||||
| mining methods and parameters when estimating | ||||
| Mineral Resources may not always be rigorous. | ||||
| Where this is the case, this should be reported with | ||||
| an explanation of the basis of the mining | ||||
| assumptions made. | ||||
| Metallurgical | | The basis for assumptions or predictions regarding | |
Only basic gravity and floatation/cyanidation |
| factors or | metallurgical amenability. It is always necessary as | testing was done on representative samples | ||
| assumptions | part of the process of determining reasonable | collected from the mineralised zone. This | ||
| prospects for eventual economic extraction to | testing showed that gravity and cyanidation will | |||
| consider potential metallurgical methods, but the | recover most of the contained gold. | |||
| assumptions regarding metallurgical treatment | ||||
| processes and parameters made when reporting | ||||
| Mineral Resources may not always be rigorous. | ||||
| Where this is the case, this should be reported with | ||||
| an explanation of the basis of the metallurgical | ||||
| assumptions made. | ||||
| Environmen-tal | |
Assumptions made regarding possible waste and | | No environmental factors were considered |
| factors or | process residue disposal options. It is always | however the tenement has sufficient suitable | ||
| assumptions | necessary as part of the process of determining | area to accommodate a small mining and | ||
| reasonable prospects for eventual economic | processing operation including provision for | |||
| extraction to consider the potential environmental | waste disposal. | |||
| impacts of the mining andprocessing operation. |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| While at this stage the determination of potential | | There are no obvious especially | ||
| environmental impacts, particularly for a | environmentally sensitive areas in the vicinity | |||
| greenfields project, may not always be well | of the deposit although the usual impact | |||
| advanced, the status of early consideration of | studies and government environmental laws | |||
| these potential environmental impacts should be | and regulations will need to be complied with. | |||
| reported. Where these aspects have not been | ||||
| considered this should be reported with an | ||||
| explanation of the environmental assumptions | ||||
| made. | ||||
| Bulk density | | Whether assumed or determined. If assumed, the | | An bulk density of 2.0 was used in the |
| basis for the assumptions. If determined, the | assumed oxide zone and 2.6 in the primary | |||
| method used, whether wet or dry, the frequency of | zone. These values are typical, if slightly | |||
| the measurements, the nature, size and | conservative, for the rock types found at | |||
| representativeness of the samples. | Carlow Castle South. Further test work is | |||
| | The bulk density for bulk material must have been measured by methods that adequately account for void spaces (vugs, porosity, etc), moisture and differences between rock and alteration zones |
essential on representative samples of the rock types found at Carlow Castle South before any further resource modelling is carried out |
||
| within the deposit. | ||||
| | Discuss assumptions for bulk density estimates | |||
| used in the evaluation process of the different | ||||
| materials. | ||||
| Classification | | The basis for the classification of the Mineral | | The resource was classified by AM&A as |
| Resources into varying confidence categories. | Inferred based on the spacing of the drilling | |||
| | Whether appropriate account has been taken of all | and quality of the data used in the estimation. | ||
| relevant factors (ie relative confidence in | | AM&A believes that this classification to be | ||
| tonnage/grade estimations, reliability of input data, | appropriate. | |||
| confidence in continuity of geology and metal | ||||
| values, quality, quantity and distribution of the | ||||
| data). | ||||
| | Whether the result appropriately reflects the | |||
| Competent Person’s view of the deposit. | ||||
| Audits or | | The results of any audits or reviews of Mineral | | No audits or reviews of the Mineral Resource |
| reviews | Resource estimates. | Estimates have been made. | ||
| Discussion of | | Where appropriate a statement of the relative | | The drill hole spacing is too wide to provide |
| relative | accuracy and confidence level in the Mineral | sufficient confidence in the resource estimate | ||
| accuracy/ | Resource estimate using an approach or | for a higher level resource category. The | ||
| confidence | procedure deemed appropriate by the Competent | quality of the data is considered to be | ||
| Person. For example, the application of statistical | reasonable for a resource estimate but | |||
| or geostatistical procedures to quantify the relative | unfortunately due to the lack of adequate | |||
| accuracy of the resource within stated confidence | reporting the QA/QC of this data cannot be | |||
| limits, or, if such an approach is not deemed | confirmed. | |||
| appropriate, a qualitative discussion of the factors that could affect the relative accuracy and |
| All quoted estimates are global for the deposit. | ||
| confidence of the estimate. | | No mine production has been recorded at the | ||
| | The statement should specify whether it relates to | deposit. | ||
| global or local estimates, and, if local, state the | ||||
| relevant tonnages, which should be relevant to | ||||
| technical and economic evaluation. Documentation | ||||
| should include assumptions made and the | ||||
| procedures used. | ||||
| | These statements of relative accuracy and | |||
| confidence of the estimate should be compared | ||||
| with production data, where available. |
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