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HAWK RESOURCES LIMITED. — Capital/Financing Update 2018
Nov 13, 2018
65081_rns_2018-11-13_7f8876c4-4a67-4ee9-90ce-9fd572a4a2f2.pdf
Capital/Financing Update
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ASX ANNOUNCEMENT 14 November 2018
Drilling returns high grade copper at Accrington
HIGHLIGHTS
-
High grade copper has been intersected in drill hole FR18-007 which has returned 54m @ 1.4% Cu, 0.45% Zn, 0.19 g/t Au, 20 g/t Ag from 46m including:
-
14m @ 3.4% Cu, 1.15% Zn, 0.22 g/t Au, 28 g/t Ag from 82m
-
Channel sample results from the Massachusetts Mine has returned 72m @ 0.77% Cu, 0.3 g/t Au, 12 g/t Ag including:
-
18m @ 1.57% Cu, 0.35 g/t Au, 24 g/t Ag; and
-
12m @ 1.56% Cu, 0.86 g/t Au, 21 g/t Ag
-
Further assays from drill hole FR18-006 have extended the mineralised intercept from 206m to 216m depth, final results for the hole are:
-
26m @ 0.38% Cu, 3.06% Zn, 16 g/t Ag from 48m including 10m @ 0.52% Cu, 6.6% Zn, 32 g/t Ag, 0.11 g/t Au from 52m; and
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100m @ 0.41% Cu, 0.30% Zn, 7 g/t Ag from 116m to 216m including 6m @ 1.8% Cu, 0.17% Zn, 29 g/t Ag, 0.18 g/t Au
-
Drilling is continuing to test copper-zinc-lead-silver-gold bearing skarns with further results from drilling expected in November
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Figure 1: Conceptual cross section with intercepts from drilling and channel sampling.
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ASX ANNOUNCEMENT 14 November 2018
Alderan Resources Limited (ASX: AL8) is pleased to provide an update on exploration at Accrington, part of the Company’s Frisco Project located in Utah, USA. Further assay results from drilling of the Accrington skarn have been received with high grade intervals of copper.
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Figure 2: Geological plan of the Imperial to Accrington East Skarn Area showing drill holes and assay results.
The drill results provide further confidence in the potential for Accrington to host a large deposit amenable to modern low-cost bulk mining methods. Previous mapping by the Company indicates that the targeted garnet skarns, the principal host for mineralisation, are likely to extend further to the SouthWest. Current drilling is focusing on mineralised garnet skarns that outcrop from Imperial to Accrington East over approximately 1km strike.
Assays confirm high grade copper at Accrington
Assay results from Accrington confirm the potential of Accrington to host high grade copper mineralisation.
Drill hole FR18-007 was drilled approximately 100m to the south-east from FR18-006 targeting mineralisation within the upper garnet skarn that was previously intersected by channel sampling along
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ASX ANNOUNCEMENT 14 November 2018
the new access road. The drill hole intersected well mineralised magnetite and garnet skarn from 46m to 100m and variably mineralised skarn thereafter with the Cactus stock being intersected at 209m. FR18007 returned:
- 54m @ 1.4% Cu, 0.45% Zn, 0.19 g/t Au, 20 g/t Ag from 46m, including 14m @ 3.4% Cu, 1.15% Zn, 0.22 g/t Au, 28 g/t Ag from 82m
Further assays were also received for FR18-006 extending the zone of mineralisation beyond 206.5m to 216m. The Company previously reported partial results on 22 October 2018 to a depth of 206.5m. Final assays for FR18-006 are:
-
26m @ 0.38% Cu, 3.06% Zn, 16 g/t Ag from 48m including 10m @ 0.52% Cu, 6.6% Zn, 32 g/t Ag, 0.11 g/t Au from 52m; and
-
100m @ 0.41% Cu, 0.30% Zn, 7 g/t Ag from 116m to 216.6m including 6m @ 1.8% Cu, 0.17% Zn, 29 g/t Ag, 0.18 g/t Au.
Drilling at Accrington is targeting a large skarn where the Company has identified potential for a largetonnage copper-zinc-silver deposit. The results confirm thick copper-zinc-silver bearing skarn across more than 500m strike. Drilling is currently taking place to the south of the Cactus Stock at Accrington East targeting the outcropping lower and upper garnet skarn in order to demonstrate the continuity of mineralised skarns to the south-west.
Historical drilling and minor mining activities were previously undertaken at the Imperial Mine. Drilling was undertaken by Bear Creek Mining Company in 1967. For a full description of historical drill results, including JORC Table 1, refer to the ASX announcement “Alderan Resources expands Frisco Project” published on 19 July 2017.
Channel Sampling at Massachusetts Copper Mine
Channel sampling was undertaken at the historical Massachusetts Copper Mine which is situated to the immediate west of the Imperial Mine. Previous drilling by the Company (FR18-001 and FR18-003) drilled from a road beneath these workings and did not intersect mineralised skarn associated with Massachusetts due to the presence of Cactus stock intrusives. Alderan recently undertook channel sampling at Massachusetts which comprised of 36 two-meter rock chip samples taken from within the adit. Refer to Figure 3 for sample locations. Assay results returned:
- 72m @ 0.78% Cu, 0.3 g/t Au, 12 g/t Ag including 18m @ 1.57% Cu, 0.35 g/t Au, 24 g/t Ag; and 12m @ 1.56% Cu, 0.86 g/t Au, 21 g/t Ag.
Mineralisation within the adit comprised partly oxidised chalcopyrite associated with garnet skarn and endoskarn. The adit terminates in Cactus stock intrusive.
The results confirm further significant mineralisation to the west of the Imperial Mine where historical drilling by Bear Creek Mining Company in 1967 returned significant copper-zinc-silver mineralisation.
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ASX ANNOUNCEMENT 14 November 2018
About the Accrington Skarn
Accrington is a large mineralised skarn measuring approximately 4km by up to 2km. Historical mining activity has taken place throughout the skarn focused on high grade structurally controlled Zn-Cu-Au-Ag deposits and within extensive copper-zinc-silver bearing garnet skarn. Many prospect pits exposing mineralisation also occur throughout the skarn. Accrington is located 18 km to the west of the Valley Copper skarn deposit (located off the Company’s claims), which was drilled by Anaconda in the 1960’s. While no resource has been published on the Valley deposit, historical drilling was reported to have intersected thick copper-garnet skarn mineralisation across an area of approximately 1000m by 600m and from 200m to 1000m depth, highlighting the potential for large skarn hosted deposits in the region[1] .
The principal focus of the Company is on the thick copper-zinc-lead-silver-gold bearing garnet skarns which outcrop at Accrington East and at the Imperial Mine, a distance of over 1km (refer to Figure 2). The Company believes that the Accrington skarn has the potential to host several significant deposits similar to other large skarns in North and South America (e.g. Battle Mountain, Pumpkin Hollow, San Martin, Carr-Fork).
Accrington is part of the Company’s Frisco Project, which also hosts several tourmaline-chalcopyrite (copper) bearing breccia pipes and deeper porphyry copper potential. It is located in Beaver County, Utah, USA - a region with exceptional infrastructure, low cost power, a skilled workforce, an extremely competitive taxation system, proximal smelters and end users.
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Figure 3: Simplified geology map of Accrington showing the principal areas where mineralisation has been identified through surface mapping and sampling.
1 “Mines and Geology of the Rocky and Beaver Lake Districts”, Beaver County, Utah, 2012
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ASX ANNOUNCEMENT 14 November 2018
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Figure 4: Massaschusetts Mine sample location and assay map.
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ASX ANNOUNCEMENT 14 November 2018
Table 1: Assay results
| Drillhole ID | Target | From (m) |
To (m) |
Interval (m) |
Cu (%) | Zn (%) | Ag (g/t) |
Au (g/t) |
|---|---|---|---|---|---|---|---|---|
| FR18-001 | Perseverance | 2 | 12 | 10 | 0.55 | NSR | 11 | |
| FR18-003 | Perseverance | 50 | 66 | 16 | 0.22 | NSR | NSR | |
| FR18-004 | Accrington Skarn | 84 | 100 | 16 | 0.62 | NSR | NSR | |
| and | 194 | 296 | 102 | 0.58 | 0.60 | 9 | ||
| FR18-005 | Accrington Skarn | 104 | 144 | 40 | 0.40 | 0.60 | 7 | |
| 180 | 194 | 14 | 0.25 | 0.27 | 6 | |||
| FR18-006 | Accrington Skarn | 48 | 72 | 26 | 0.38 | 3.06 | 16 | |
| Including | 52 | 62 | 10 | 0.52 | 6.6 | 32 | 0.11 | |
| and | 116 | 216 | 100.6 | 0.41 | 0.30 | 7 | ||
| Including | 144 | 150 | 6 | 1.80 | 0.17 | 29 | 0.18 | |
| FR18-007 | Accrington Skarn | 46 | 100 | 54 | 1.4 | 0.45 | 20 | 0.19 |
| Including | 82 | 96 | 14 | 3.4 | 1.15 | 28 | 0.22 |
Notes:
- Reported mineralisation is quoted in downhole depths. True width may be less than downhole intercept width (apparent width), and insufficient work has been completed to enable accurate calculation of true widths. No cut-off grade has been applied.
Table 2: Drillhole Location Details
| Drillhole ID | Easting | Northing | Dip | Azimuth | Depth (m) | Drill Type |
|---|---|---|---|---|---|---|
| FR18-001 | 300100 | 4259693 | -60 | 360 | 310.94 | Diamond |
| FR18-002 | Not utilised/abandoned | |||||
| FR18-003 | 300043 | 4259611 | -61 | 353 | 1016.3 | Diamond |
| FR18-004 | 300375 | 4259528 | -55 | 290 | 362.18 | Diamond |
| FR18-005 | 300368 | 4259525 | -60 | 190 | 429.38 | Diamond |
| FR18-006 | 300368 | 5259525 | -55 | 245 | 367.9 | Diamond |
| FR18-007 | 300445 | 4259483 | -58 | 180 | 228.25 | Diamond |
Notes:
- FR18-001 was previously called ALIM001 and FR18-003 was previously called ALIM003.
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ASX ANNOUNCEMENT 14 November 2018
Table 3: Channel sample assay results
| From(m) | To(m) | Interval(m) | Au(g/t) | Ag (g/t) | Cu(%) | Notes |
|---|---|---|---|---|---|---|
| 0 | 76 | 72m | 0.30ppm | 12ppm | 0.78% | 22-24m,50-52m no sample taken |
| includes | ||||||
| 18 | 38 | 18m | 0.35ppm | 24ppm | 1.60% | 22-24m no sample taken |
| 44 | 58 | 12m | 0.86ppm | 21ppm | 1.60% | 50-52m no sample taken |
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- Ends - - -
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ASX ANNOUNCEMENT 14 November 2018
ALDERAN RESOURCES LIMITED
Ground Floor, 16 Ord Street, West Perth, 6005, WA
www.alderanresources.com.au
For further information:
e: [email protected] p: +61 8 9482 0560
ABN: 55 165 079 201
Please direct enquiries to:
Christopher Wanless
Chief Executive Officer
[email protected]
Stay Connected
Interested investors and shareholders are encouraged to subscribe to the Company’s social media channels using the links below:
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Competent Persons Statement
The information in this presentation that relates to exploration targets, or exploration results is based on information compiled by John Schloderer, a competent person who is a member of the Australian Institute of Geoscientists (AIG). John Schloderer is the Exploration Manager of Alderan Resources Limited. {insert name} has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 edition of the JORC Code (JORC Code). John Schloderer consents to the inclusion of this information in the form and context in which it appears.
Mr John Schloderer confirms that that the information provided in this announcement provided under ASX Listing Rules Chapter 5.12.2 to 5.12.7 is an accurate representation of the available data and studies for the proposed exploration programmes that relate to this “material mining project”.
Forward Looking Statement
Statements contained in this release, particularly those regarding possible or assumed future performance, costs, dividends, production levels or rates, prices, resources, reserves or potential growth of Alderan Resources Limited, are, or may be, forward looking statements. Such statements relate to future events and expectations and, as such, involve known and unknown risks and uncertainties. Actual results and developments may differ materially from those expressed or implied by these forward-looking statements depending on a variety of factors.
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JORC Code, 2012 Edition – Table 1 report Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | • Nature and quality of sampling (eg cut channels, random chips, or | •This release refers to multi-element assay results of holes FR18-006, |
| techniques | specific specialised industry standard measurement tools appropriate | FR18-007. |
| to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling. |
•Underground rock samples were taken as 2m composite continuous channel samples along adit walls representative of the exposed rock |
|
| • Include reference to measures taken to ensure sample representivity | ||
| and the appropriate calibration of any measurement tools or systems | ||
| used. | ||
| • Aspects of the determination of mineralisation that are Material to the | ||
| Public Report. | ||
| • In cases where ‘industry standard’ work has been done this would be | ||
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | ||
| m samples from which 3 kg was pulverised to produce a 30 g 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 hammer, rotary air | •Drilling is by diamond core of HQ (61mm) diameter. FR18-006 and |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple | FR18-007 used standard tube and the Reflex ACT II orientation |
| or standard tube, depth of diamond tails, face-sampling bit or other | device. |
|
| type, whether core is oriented and if so, by what method, etc). | •The ACT II device requires competent core at the core lifter in order | |
| to result in a useable orientation line. Sections of core which are | ||
| broken results in limited or no oriented core in these intervals. | ||
| Drill sample | • Method of recording and assessing core and chip sample recoveries |
•Core is measured by a qualified geologist using downhole marking |
| recovery | and results assessed. | blocks placed by the driller. Zones of cave or fill are assessed by |
| • Measures taken to maximise sample recovery and ensure representative nature of the samples. |
competence, texture and geologic relationship to surrounding rock, as well as reported cave from drill crew. |
9
| Criteria | Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|---|
| • Whether a relationship exists between sample recovery and grade | •Drilling through poor ground conditions has resulting in minor zones |
|||
| and whether sample bias may have occurred due to preferential | of poor drill recovery. |
|||
| loss/gain of fine/coarse material. | •FR18-005 - Casing depth is 6m. Average core recovery is 93-96%. | |||
| •FR18-006 – Casing depth is 6m. Average core recovery is 93-96%. | ||||
| •No relationship between core recovery and grade has yet been | ||||
| established as recovery is quite high. | ||||
| Logging | • Whether core and chip samples have been geologically and | •All core has been geologically logged to a level of detail to support |
||
| geotechnically logged to a level of detail to support appropriate | future geological modelling and resource estimation. |
|||
| Mineral Resource estimation, mining studies and metallurgical studies. |
•All logging is qualitative with visual estimates of various characteristics conducted by a qualified geologist. |
|||
| • Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. |
•All core is photographed by DMT Corescan and photographs recorded in a proprietary database. |
|||
| • The total length and percentage of the relevant intersections logged. | ||||
| Sub- | • If core, whether cut or sawn and whether quarter, half or all core | •Core is cut with an Almonte core saw and half core is sent in for multi- |
||
| sampling | taken. | element analysis. | ||
| 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 prep includes crushing the entire sample to 70% pasing - 2mm, Boyd rotary split off 250g and pulverize split to better than 85% passing 75 microns. |
||
| sample preparation technique. | •Sample prep for underground rock chips is using the same method as | |||
| • Quality control procedures adopted for all sub-sampling stages to | described above for core |
|||
| 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 assaying and | •Analysis is done by ALS Geochemistry North American laboratories |
|
| assay data and laboratory |
laboratory procedures used and whether the technique is considered partial or total. • For geophysical tools, spectrometers, handheld XRF instruments, etc, |
•Au analysis is by fire assay and AAS using 30g nominal sample weight. |
10
| Criteria | Criteria | JORC Code explanation | Commentary | ||
|---|---|---|---|---|---|
| tests | the parameters used in determining the analysis including instrument | •Multi element analysis is by four acid digestion and ICP-AES |
|||
| make and model, reading times, calibrations factors applied and their derivation, etc. |
•Standards, blanks or field duplicates are inserted exery 8 to 9 samples. |
||||
| • Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels |
•Acceptable levels of accuracy are 2 standard deviations. |
||||
| of accuracy (ie lack of bias) and precision have been established. | •Underground rock samples have been assayed by four acid digestion | ||||
| for 34 elements using an ICP-AES finish. Au analysis is by fire assay | |||||
| and AAS using 30g nominal sample weight. | |||||
| Verification | • The verification of significant intersections by either independent or | •Significant intersections are done by a competent person and |
|||
| of | sampling | alternative company personnel. | checked by the staff exploration manager. | ||
| and | assaying | • The use of twinned holes. | •Data is managed by a dedicated data base manager using Data Shed | ||
| • Documentation of primary data, data entry procedures, data | software with electronic storage and periodic backup. |
||||
| verification, data storage (physical and electronic) protocols. | |||||
| • Discuss any adjustment to assay data. | |||||
| Location | of | • Accuracy and quality of surveys used to locate drill holes (collar | and | •Collar locations are set with handheld GPS with a positional accuracy |
|
| data | points | down-hole surveys), trenches, mine workings and other locations | of +/3m. Upon completion of drilling, collar locations will be surveyed |
||
| used in Mineral Resource estimation. | with DGPS to a positional accuracy of +/-0.1m, to be conducted by a | ||||
| • Specification of the grid system used. | licensed surveyor. | ||||
| • Quality and adequacy of topographic control. | •Progress downhole surveys are conducted by Major Drilling personnel at 30m intervals using a Reflex EZshot single shot |
||||
| magnetic survey tool. | |||||
| •Grid coordinate system is WGS84 Zone 12, UTM (m) units. | |||||
| •Upon completion of drilling, topographic control will be provided by | |||||
| DGPS to a positional accuracy of +/-0.1m, to be conducted by a | |||||
| licensed surveyor. | |||||
| •Underground samples are located underground following surveying of | |||||
| the mine adits and workings | |||||
| Data spacing | • Data spacing for reporting of Exploration Results. | •At this early exploration stage, the data spacing is variable as the | |||
| and distribution |
• Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral |
focus is on identifying new zones of mineralisation. •Reconnaissance drilling only, no resource estimation being |
|||
| Resource and Ore Reserve estimation procedure(s) |
and |
11
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| classifications applied. | undertaken at this time. | ||
| • Whether sample compositing has been applied. | •No sample compositing is applied. Drill core is sampled at 2 meter | ||
| intervals. | |||
| Orientation | • Whether the orientation of sampling achieves unbiased sampling of | •FR18-006 Orientation of 245/-56 intersects potential stratigraphy |
|
| of data |
in | possible structures and the extent to which this is known, considering |
controlled skarn at as near a true angle as possible. |
| relation geological structure |
to | the deposit type. • 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. |
•FR18-007 Orientation of 181/-60 intersects the potentially statigraphy controlled skarn at as near a true angle as possible. •Insufficient data exists to properly asses degree of structural control or True Width. |
| Sample | • The measures taken to ensure sample security. | •Samples are maintained in a secured warehouse and the chain of | |
| security | custody is ALS Laboratories supervision from site location pick up to | ||
| the laboratory in secured ALS transport | |||
| Audits | or | • The results of any audits or reviews of sampling techniques and data. |
•No external audits have been undertaken. These would be part of |
| reviews | future resource estimation work. |
12
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Mineral | • Type, reference name/number, location and ownership including | •The Frisco Prospect comprises 275 patented and 252 unpatented |
|
| tenement | agreements or material issues with third parties such as joint | claims, which are governed by the Horn, Cactus and Northern |
|
| and | land | ventures, partnerships, overriding royalties, native title interests, |
Carbonate lease agreements entered into with the private landowner, |
| tenure status | historical sites, wilderness or national park and environmental | Horn Silver Mines Inc. |
|
| settings. | •The Horn and Cactus lease agreements grant Alderan all rights to | ||
| • The security of the tenure held at the time of reporting along with any | access the property and to explore for and mine minerals, subject to |
||
| known impediments to obtaining a licence to operate in the area. | a retained royalty of 3% to the landholder. Alderan holds options to | ||
| reduce the royalty to 1% and to purchase the 231 patented claims. | |||
| •The Northern Carbonate Lease grants Alderan with all rights to | |||
| access the property and to explore for and mine minerals, subject to | |||
| a retained royalty of 3% to the landholder. Alderan holds options to | |||
| reduce the royalty to 1% and to purchase the 231 patented claims. | |||
| •Alderan was in full compliance with both lease agreements and all | |||
| claims were in good standing at the time of reporting. | |||
| Exploration | • Acknowledgment and appraisal of exploration by other parties. | •A large amount of historical exploration has been carried out by | |
| done | by | numerous different parties dating back to the 1800’s. | |
| other parties | •Historical mining records including level plans and production records | ||
| exist for the period between 1905 and 1915 when the vast majority of | |||
| production occurred | |||
| •Historical drilling has been carried out by multiple parties including | |||
| Anaconda Company, Rosario Exploration Company, Amax |
|||
| Exploration and Western Utah Copper Corporation/Palladon Ventures | |||
| •Data has been acquired, digitized where indicated, and interpreted by | |||
| Alderan. | |||
| Geology | • Deposit type, geological setting and style of mineralisation. | •Porphyry style mineralised district with several expressions of | |
| mineralisation at surface, such as breccia pipes, skarns, structurally- | |||
| hosted mineralisation, and manto style mineralised zones. | |||
| •Part of the larger Laramide mineralising event. | |||
| •Overprinted by Basin and Range tectonics. |
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| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Drill | hole | • A summary of all information material to the understanding of the |
•Details for hole FR18-007 |
| Information | exploration results including a tabulation of the following information for all Material drill holes: |
o Easting WGS84 Zn12 – 300445mE |
|
o easting and northing of the drill hole collar |
o Northing WGS84 Zn12 – 4259483nN |
||
o elevation or RL (Reduced Level – elevation above sea level in |
o Elevation - 2343m asl |
||
| metres) of the drill hole collar | o Collar dip -60o, Azimuth 181o |
||
o dip and azimuth of the hole |
oHole completed at 228.25m. |
||
o down hole length and interception depth |
•Details for hole FR18-006 | ||
o hole length. |
o Easting WGS84 Zn12 – 300368mE |
||
| • If the exclusion of this information is justified on the basis that the | o Northing WGS84 Zn12 – 4259525nN |
||
| information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly |
o Elevation - 2343m asl |
||
| explain why this is the case. | o Collar dip -56o, Azimuth 245o |
||
oHole completed at 362.93m. |
|||
| Data | • In reporting Exploration Results, weighting averaging techniques, | •Significant intercepts use a weighting average technique using a |
|
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | quoted cut of grade or an indiction of no curtoof grade. |
|
| methods | 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. | |||
| Relationship | • These relationships are particularly important in the reporting of | •Reported mineralisation is quoted in downhole depths. True width |
|
| between | Exploration Results. | may be less than downhole intercept width (apparent width), and | |
| mineralisatio n widths and intercept |
• If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. |
insufficient work has been completed to enable accurate calculation of true widths. |
|
| lengths | • 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’). |
14
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| 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. | ||
| Balanced | • Where comprehensive reporting of all Exploration Results is not | •Widths of the down hole intervals are reported. |
| reporting | practicable, representative reporting of both low and high grades | |
| and/or widths should be practiced to avoid misleading reporting of | ||
| Exploration Results. | ||
| Other | • Other exploration data, if meaningful and material, should be reported | •Details of other exploration results are recorded in the Independent |
| substantive | including (but not limited to): geological observations; geophysical | Geologist’s Report, contained in the Prospectus and on the |
| exploration | survey results; geochemical survey results; bulk samples – size and | announcement dated 28 June 2017. |
| data | 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 (eg tests for lateral | •Details of intended exploration activities are mentioned in the report |
| extensions or depth extensions or large-scale step-out drilling). | above and in previous announcements made by the Company and | |
| • Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, |
also recorded in the Independent Geologist’s Report, contained in the Prospectus. |
|
| provided this information is not commercially sensitive. |
15
Section 3 Estimation and Reporting of Mineral Resources (Criteria listed in section 1, and where relevant in section 2, also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Database | • Measures taken to ensure that data has not been corrupted by, for | •No resource estimation has been undertaken |
| integrity | example, transcription or keying errors, between its initial collection | |
| and its use for Mineral Resource estimation purposes. | ||
| • Data validation procedures used. | ||
| Site visits | • Comment on any site visits undertaken by the Competent Person and | • |
| the outcome of those visits. | ||
| • If no site visits have been undertaken indicate why this is the case. | ||
| Geological | • Confidence in (or conversely, the uncertainty of ) the geological | • |
| interpretation | interpretation of the mineral deposit. | |
| • Nature of the data used and of any assumptions made. | ||
| • The effect, if any, of alternative interpretations on Mineral Resource | ||
| estimation. | ||
| • The use of geology in guiding and controlling Mineral Resource | ||
| estimation. | ||
| • The factors affecting continuity both of grade and geology. | ||
| Dimensions | • The extent and variability of the Mineral Resource expressed as | • |
| length (along strike or otherwise), plan width, and depth below | ||
| surface to the upper and lower limits of the Mineral Resource. | ||
| Estimation | • The nature and appropriateness of the estimation technique(s) | • |
| and | applied and key assumptions, including treatment of extreme grade | |
| modelling | values, domaining, interpolation parameters and maximum distance | |
| techniques | of extrapolation from data points. If a computer assisted estimation | |
| method was chosen include a description of computer software and | ||
| parameters used. | ||
| • The availability of check estimates, previous estimates and/or mine | ||
| production records and whether the Mineral Resource estimate takes | ||
| appropriate account of such data. | ||
| • The assumptions made regarding recovery of by-products. | ||
| • _Estimation of deleterious elements or other non-grade variables of _ |
16
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| economic significance (eg 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 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 parameters | • |
|
| parameters | applied. | ||
| Mining | • Assumptions made regarding possible mining methods, minimum | • |
|
| factors | or | mining dimensions and internal (or, if applicable, external) mining |
|
| assumptions | dilution. It is always necessary as part of the process of determining | ||
| reasonable prospects for eventual 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 metallurgical | • |
|
| factors | or | amenability. It is always necessary as part of the process of |
|
| assumptions | determining reasonable prospects for eventual economic extraction to | ||
| consider potential metallurgical methods, but the 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. |
17
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Environmen- | • Assumptions made regarding possible waste and process residue | • |
|
| tal factors | or | disposal options. It is always necessary as part of the process of |
|
| assumptions | determining 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 method used, whether wet or dry, the | |||
| frequency of the measurements, the nature, size and |
|||
| representativeness of the samples. | |||
| • 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 | |||
| 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 Resources into varying |
• |
|
| confidence categories. | |||
| • 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 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 Resource estimates. |
• |
| reviews | |||
| Discussion | of | • Where appropriate a statement of the relative accuracy and |
• |
| relative | confidence level in the Mineral Resource estimate using an approach | ||
| accuracy/ | or procedure deemed appropriate by the Competent Person. For | ||
| confidence | example, the application of statistical or geostatistical procedures to | ||
| quantify the relative accuracy of the resource within stated confidence |
18
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| limits, or, if such an approach is not deemed appropriate, a qualitative | ||
| discussion of the factors that could affect the relative accuracy and | ||
| confidence of the 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 procedures used. | ||
| • These statements of relative accuracy and confidence of the estimate | ||
| should be compared with production data, where available. |
19
Section 4 Estimation and Reporting of Ore Reserves (Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section.)
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Mineral | • Description of the Mineral Resource estimate used as a basis for the | •No resource estimation has been undertaken |
|
| Resource | conversion to an Ore Reserve. | ||
| estimate for conversion to Ore |
• Clear statement as to whether the Mineral Resources are reported additional to, or inclusive of, the Ore Reserves. |
||
| Reserves | |||
| Site visits | • Comment on any site visits undertaken by the Competent Person and | • |
|
| the outcome of those visits. | |||
| • If no site visits have been undertaken indicate why this is the case. | |||
| Study status | • The type and level of study undertaken to enable Mineral Resources | • |
|
| to be converted to Ore Reserves. | |||
| • The Code requires that a study to at least Pre-Feasibility Study level | |||
| has been undertaken to convert Mineral Resources to Ore Reserves. | |||
| Such studies will have been carried out and will have determined a | |||
| mine plan that is technically achievable and economically viable, and | |||
| that material Modifying Factors have been considered. | |||
| Cut-off | • The basis of the cut-off grade(s) or quality parameters applied. | • | |
| parameters | |||
| Mining | • The method and assumptions used as reported in the Pre-Feasibility | • |
|
| factors | or | or Feasibility Study to convert the Mineral Resource to an Ore |
|
| assumptions | Reserve (i.e. either by application of appropriate factors by | ||
| optimisation or by preliminary or detailed design). | |||
| • The choice, nature and appropriateness of the selected mining | |||
| method(s) and other mining parameters including associated design | |||
| issues such as pre-strip, access, etc. | |||
| • The assumptions made regarding geotechnical parameters (eg pit | |||
| slopes, stope sizes, etc), grade control and pre-production drilling. | |||
| • The major assumptions made and Mineral Resource model used for | |||
| pit and stope optimisation (if appropriate). | |||
| • The mining dilution factors used. |
20
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| • The mining recovery factors used. | |||
| • Any minimum mining widths used. | |||
| • The manner in which Inferred Mineral Resources are utilised in | |||
| mining studies and the sensitivity of the outcome to their inclusion. | |||
| • The infrastructure requirements of the selected mining methods. | |||
| Metallurgical | • The metallurgical process proposed and the appropriateness of that | • |
|
| factors | or | process to the style of mineralisation. |
|
| assumptions | • Whether the metallurgical process is well-tested technology or novel | ||
| in nature. | |||
| • The nature, amount and representativeness of metallurgical test work | |||
| undertaken, the nature of the metallurgical domaining applied and the | |||
| corresponding metallurgical recovery factors applied. | |||
| • Any assumptions or allowances made for deleterious elements. | |||
| • The existence of any bulk sample or pilot scale test work and the | |||
| degree to which such samples are considered representative of the | |||
| orebody as a whole. | |||
| • For minerals that are defined by a specification, has the ore reserve | |||
| estimation been based on the appropriate mineralogy to meet the | |||
| specifications? | |||
| Environmen- | • The status of studies of potential environmental impacts of the mining | • |
|
| tal | and processing operation. Details of waste rock characterisation and | ||
| the consideration of potential sites, status of design options | |||
| considered and, where applicable, the status of approvals for process | |||
| residue storage and waste dumps should be reported. | |||
| Infrastructure | • The existence of appropriate infrastructure: availability of land for |
• |
|
| plant development, power, water, transportation (particularly for bulk | |||
| commodities), labour, accommodation; or the ease with which the | |||
| infrastructure can be provided, or accessed. | |||
| Costs | • The derivation of, or assumptions made, regarding projected capital | • |
|
| costs in the study. | |||
| • The methodology used to estimate operating costs. |
21
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| • Allowances made for the content of deleterious elements. | ||
| • The source of exchange rates used in the study. | ||
| • Derivation of transportation charges. | ||
| • The basis for forecasting or source of treatment and refining charges, | ||
| penalties for failure to meet specification, etc. | ||
| • The allowances made for royalties payable, both Government and | ||
| private. | ||
| Revenue | • The derivation of, or assumptions made regarding revenue factors | • |
| factors | including head grade, metal or commodity price(s) exchange rates, | |
| transportation and treatment charges, penalties, net smelter returns, | ||
| etc. | ||
| • The derivation of assumptions made of metal or commodity price(s), | ||
| for the principal metals, minerals and co-products. | ||
| Market | • The demand, supply and stock situation for the particular commodity, | • |
| assessment | consumption trends and factors likely to affect supply and demand | |
| into the future. | ||
| • A customer and competitor analysis along with the identification of | ||
| likely market windows for the product. | ||
| • Price and volume forecasts and the basis for these forecasts. | ||
| • For industrial minerals the customer specification, testing and | ||
| acceptance requirements prior to a supply contract. | ||
| Economic | • The inputs to the economic analysis to produce the net present value | • |
| (NPV) in the study, the source and confidence of these economic | ||
| inputs including estimated inflation, discount rate, etc. | ||
| • NPV ranges and sensitivity to variations in the significant | ||
| assumptions and inputs. | ||
| Social | • The status of agreements with key stakeholders and matters leading | • |
| to social licence to operate. | ||
| Other | • To the extent relevant, the impact of the following on the project | • |
| and/or on the estimation and classification of the Ore Reserves: |
22
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| • Any identified material naturally occurring risks. | |||
| • The status of material legal agreements and marketing arrangements. | |||
| • The status of governmental agreements and approvals critical to the | |||
| viability of the project, such as mineral tenement status, and | |||
| government and statutory approvals. There must be reasonable | |||
| grounds to expect that all necessary Government approvals will be | |||
| received within the timeframes anticipated in the Pre-Feasibility or | |||
| Feasibility study. Highlight and discuss the materiality of any | |||
| unresolved matter that is dependent on a third party on which | |||
| extraction of the reserve is contingent. | |||
| Classification | • The basis for the classification of the Ore Reserves into varying | • |
|
| confidence categories. | |||
| • Whether the result appropriately reflects the Competent Person’s | |||
| view of the deposit. | |||
| • The proportion of Probable Ore Reserves that have been derived | |||
| from Measured Mineral Resources (if any). | |||
| Audits | or | • The results of any audits or reviews of Ore Reserve estimates. | • |
| reviews | |||
| Discussion | of | • Where appropriate a statement of the relative accuracy and | • |
| relative | confidence level in the Ore Reserve estimate using an approach or | ||
| accuracy/ | procedure deemed appropriate by the Competent Person. For | ||
| confidence | example, the application of statistical or geostatistical procedures to | ||
| quantify the relative accuracy of the reserve within stated confidence | |||
| limits, or, if such an approach is not deemed appropriate, a qualitative | |||
| discussion of the factors which could affect the relative accuracy and | |||
| confidence of the 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 procedures used. | |||
| • Accuracy and confidence discussions should extend to specific | |||
| discussions of any applied Modifying Factors that may have a | |||
| material impact on Ore Reserve viability, or for which there are | |||
| remaining areas of uncertainty at the current study stage. |
23
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| • It is recognised that this may not be possible or appropriate in all | ||
| circumstances. These statements of relative accuracy and confidence | ||
| of the estimate should be compared with production data, where | ||
| available. |
24