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GBM RESOURCES LIMITED. — Investor Presentation 2017
Feb 28, 2017
64966_rns_2017-02-28_64d4af52-bc59-411d-aac7-2edf634eb391.pdf
Investor Presentation
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ABN 91 124 752 745
ASX Release
1 March 2017
ASX Code: GBZ
Mt Coolon Gold Project Update
- Glen Eva drillhole GLD0001 intersected a zone of strong epithermal veining and mineralisation over a downhole interval from 146.0 metres of 13.0 metres averaging 3.6 g/t Au and 13.7 g/t Ag, including 4.4 metres averaging 9.5 g/t Au and 34.5 g/t Ag. These results are in line with expectations for this high grade deposit.
COMPANY DIRECTORS
Peter Thompson Managing Director/ Executive Chairman
Neil Norris Exploration Director – Executive Hun Seng Tan Non- Executive Director
-
The Koala Gold Mine Stage 2 infill diamond drilling remains on track to be completed during the March quarter.
-
Results from both Stage 1 & 2 drilling is to support the reestimation of the resource for the central Koala Gold Mine area.
-
All exploration activities at Mt Coolon Gold Project are designed to provide supporting data for the evaluation of options for the recommencement of mining operations at the Koala and Glen Eva Gold Mines.
Australian Resources company GBM Resources Limited (ASX: GBZ ) (“ GBM ” or “ the Company ”) wishes to advise that a two-hole drilling programme designed to provide samples and data to support further investigation of the geotechnical, geochemical and metallurgical characteristics of the Glen Eva Deposit was completed during January 2017
CONTACT DETAILS
Principal & Registered Office Suite 8, 7 The Esplanade, Mt Pleasant, WA 6153
Exploration Office 10 Parker Street, Castlemaine, Victoria 3450
Website
www.gbmr.com.au
Email [email protected] Phone +61 (8) 9316 9100
Fax
+61 (8) 9315 5475
Phone (Exploration Office) +61 (3) 5470 5033
Assay results of the second hole (GLDOOO2) are expected to be received in March 2017.
1
Glen Eva Deposit
Analytical results for the first of the two holes drilled at Glen Eva have been received. The drillhole intersected a zone of strong epithermal veining and mineralisation within a very wide alteration zone which included a downhole interval from 146.0 metres of 13.0 metres averaging 3.6 g/t Au and 13.7 g/t Ag , including 4.4m averaging 9.5 g/t Au and 35.7 g/t Ag (Based on a 0.5 g/t Au cut-off).
These results are in line with expectations for this high-grade deposit. Results for the second hole, which also intersected significant alteration and mineralisation are expected to be received during March 2017.
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Photograph: GLD0001: Best assays from rubbly quartz vein at top of tray and from banded vein at the bottom (0.75m @ 22 g/t Au and 77 ppm Ag from 150m).
Future work
Koala phase 2 infilling drilling programme remains on track and is expected to be completed during the March Quarter. Both Phase 1&2 drilling programme will provide key inputs to support the re-estimation of the resource adjacent to the old underground workings of the Koala underground and detailed mine design (refer ASX announcement 20 December 2016 for further details of the Phase 1 drill program at Koala).
A further round of environmental monitoring was completed in January 2017 over the Koala and Glen Eva mine areas as part of the Company’s commitment to establishing a sound basis for future rehabilitation of the Mount Coolon Project area.
Also progressing is the re-evaluation of the Glen Eva Resource model to reflect open pit mining parameters. This should be completed upon receipt of results from the confirmatory drilling recently completed at Glen Eva. The Company has submitted for geochemical analyses samples from these holes and completed sampling and logging to provide information on the metallurgical, geotechnical and environmental characteristics of the deposit to support a mine design of the Glen Eva deposit.
Desktop analyses of surface and groundwater characteristics of the area, in addition to sampling of available groundwater and surface waters is currently in progress.
Discussions with potential toll milling service providers continue and remain positive. The metallurgical data now being generated from test work currently in progress will be critical to advancing the toll milling options and design treatment flow sheets for the Koala and Glen Eva deposits.
2
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Figure: Glen Eva Open Pit gold mine aerial view from GBM Lidar survey 2016 showing the location of recent drillholes GLD001 and GLD002. (Grid MGA84 Zone 54)
3
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Figure : Koala Central area drill hole plan showing drill hole locations for Phase 1 drillholes and planned Phase 2 drillholes including shallow (‘upstope’) holes. Underlying high resolution image is from 2016 LIDAR survey. Grid is a local non-earth grid.
4
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Figure: Mt Coolon Gold Project tenement group location plan.
For Further information please contact:
Peter Thompson Karen Oswald Managing Director Marko Communications GBM Resources Limited Tel: 0423 602 353 Tel: 08 9316 9100 Email: [email protected]
About GBM Resources
GBM Resources Ltd (ASX: GBZ) is an Australian resource company that listed on the ASX in 2007, headquartered in Perth WA, with exploration operations in Queensland and Victoria.
The Company’s primary focus is in key commodities of gold and copper-gold, assets in Australia. GBM tenements cover an area greater than 3,200 square kilometres in eight major projects areas in Queensland and Victoria.
GBM is prioritising the exploration and development of the Mount Coolon Gold Project and Mount Morgan Gold Copper Project.
5
Mt Coolon Project Resource Summary (ASX announcement 23 August 2016)
| Project | Location | Resource Category | Resource Category | Resource Category | Resource Category | Resource Category | Resource Category | Resource Category | Resource Category | Resource Category | 000' t Aug/t Au ozs Total |
000' t Aug/t Au ozs Total |
000' t Aug/t Au ozs Total |
Cut-off |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 000' t Aug/t Au ozs Measured |
000' t Aug/t Au ozs Indicated |
000' t Aug/t Au ozs Inferred |
||||||||||||
| Koala | Open Pit | 370 | 2.8 | 33,500 | 750 | 2.1 | 51,700 | 1,110 | 2.4 | 85,000 | 0.4 | |||
| Underground Extension | 50 | 3 | 5,100 | 230 | 3.9 | 28,500 | 280 | 3.7 | 33,700 | 2.0 | ||||
| Tailings | 114 | 1.6 | 6,200 | 9 | 1.6 | 400 | 124 | 1.6 | 6,600 | 1 | ||||
| Total | 114 1.7 6,200 429 2.8 39,000 980 2.5 80,200 1,514 2.6 125,300 |
|||||||||||||
| Eugenia | Oxide | 1,305 | 0.9 | 39,300 | 219 | 0.7 | 5,100 | 1,524 | 0.9 | 44,400 | 0.4 | |||
| Sulphide | 2,127 | 0.9 | 62,300 | 1,195 | 1.2 | 45,500 | 3,322 | 1.0 | 107,800 | 0.4 | ||||
| Total | 3,432 0.9 101,600 1,414 1.1 50,600 4,846 1.0 152,200 0.4 |
|||||||||||||
| Glen Eva | Belowpit. | 132 | 7.8 | 33,200 | 21 | 5.9 | 4,000 | 154 | 7.5 | 37,200 | 3.0 | |||
| Total | 114 1.7 6,200 3,993 1.4 173,800 2,415 1.7 134,800 6,514 1.5 314,700 |
Table: Current global resource table for Mt Coolon Gold Project. Please note rounding; tonnes (1,000t), grade (0.1g/t) and contained gold (100 ounces).
Notes
The information in this report that relates to Mineral Resources, Exploration Targets and Exploration Results is based on information compiled by Neil Norris, who is a Member of The Australasian Institute of Mining and Metallurgy and The Australasian Institute of Geoscientists. Mr Norris is a full-time employee of the company, and is a holder of shares and options in the company. Mr Norris 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 Norris consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
The Company confirms that the form and context in which the Competent Persons findings are presented have not been materially modified from the original market announcements.
The Company confirms that it is not aware of any new information or data that materially affects the information included in the respective announcements and all material assumptions and technical parameters underpinning the resource estimate with those announcements continue to apply and have not materially changed
6
JORC Code, 2012 Edition – Table 1 Glen Eva Gold Deposit, Mt Coolon Project Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Important Note:
This Table 1 refers to drilling completed at the Glen Eva Project by MCGM in 2016 and 2017 only. Drilling and exploration has been carried out at Glen Eva over a long period by a variety of companies. Table 1 data has previously been reported for Glen Eva in January 2017, including a summary of previous company drilling, sampling and assaying methods.
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | • Nature and quality of sampling (eg cut channels, random chips, or | •Diamond core drilling was used to obtain WL66 (NQ2 equivalent) size |
| techniques | specific specialised industry standard measurement tools appropriate | drill core. Core was cut at nominal 1m interval lengths or at distinctive |
| to the minerals under investigation, such as down hole gamma | geological boundaries (e.g major quartz vein margins) then half-sawn | |
| sondes, or handheld XRF instruments, etc). These examples should | lengthways using a Corewise core saw. Half-core interval length | |
| not be taken as limiting the broad meaning of sampling. | samples were then bagged in labelled calico bags for laboratory | |
| • Include reference to measures taken to ensure sample representivity | shipment. | |
| 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 | •All drilling was completed using the Diamond Core method by an |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple | Onram 1000/3 track mounted drill rig. |
| or standard tube, depth of diamond tails, face-sampling bit or other | •Diamond core was recovered in a standard wireline core barrel using | |
| type, whether core is oriented and if so, by what method, etc). | standard WL66 size equipment with a single-tube barrel assembly. | |
| •Samples were pushed out from the core barrel using a plastic tipped | ||
| steel rod. | ||
| •Alldiamond corewas oriented usingReflexdigitalorientationtools. | ||
| Drill sample | • Method of recording and assessing core and chip sample recoveries | •Short (1.5m) core barrels were used where required for short drill |
| recovery | and results assessed. | runs to assist recovery. |
| • Measures taken to maximise sample recovery and ensure | •Diamond drill recovery was recorded run by run using the aggregate | |
| representative nature of the samples. | of all >10cm corepiecesper run method. Recoverywas very good in |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| • Whether a relationship exists between sample recovery and grade | competent lithology but was compromised in heavily fractured or | |
| and whether sample bias may have occurred due to preferential | puggy fault sheared ground close to the existing pit base. | |
| loss/gain of fine/coarse material. | •The relationship between grade and drilling recovery will be | |
| investigated at the conclusion of the drilling program. | ||
| Logging | • Whether core and chip samples have been geologically and | •All diamond core was logged in detail for lithology, weathering, |
| geotechnically logged to a level of detail to support appropriate | veining, quartz percentage, alteration, structure, colour and basic | |
| Mineral Resource estimation, mining studies and metallurgical | geotechnical parameters (RQD). | |
| studies. | •Logging of a selection of holes was also completed to advanced | |
| • Whether logging is qualitative or quantitative in nature. Core (or | geotechnical industry standards for pit design and mine planning. | |
| costean, channel, etc) photography. | •The logging has been carried out to an appropriate level for resource | |
| • The total length and percentage of the relevant intersections logged. | estimation. | |
| •All holes werephotographed from surface to EOH,both wet and dry. | ||
| Sub- | • If core, whether cut or sawn and whether quarter, half or all core | •All diamond core samples were cut with a diamond brick saw to 1.0 m |
| sampling | taken. | or geological intervals and half sampled using a Corewise core- |
| techniques | • If non-core, whether riffled, tube sampled, rotary split, etc and | cutting saw. |
| and sample | whether sampled wet or dry. | •Laboratory sample preparation for all samples followed the respective |
| preparation | • For all sample types, the nature, quality and appropriateness of the | laboratories standard methodologies for gold fire assay and multi- |
| sample preparation technique. | element techniques. | |
| • Quality control procedures adopted for all sub-sampling stages to | •Quality control procedures for sampling were implemented | |
| maximise representivity of samples. | systematically; blanks and field duplicates were inserted every 10 | |
| • Measures taken to ensure that the sampling is representative of the in | core samples (focused in mineralized zones), and standards were |
|
| situ material collected, including for instance results for field | inserted every consecutive 20 sample run. | |
| duplicate/second-half sampling. | •Field duplicates consisted of quarter-cut core of equal interval length | |
| • Whether sample sizes are appropriate to the grain size of the material | to the primary half-core sample. |
|
| being sampled. | •No additionalmeasures were taken to ensure the representivity of the | |
| samples. | ||
| Quality of | • The nature, quality and appropriateness of the assaying and | •ALS Laboratories Au-AA25: A prepared sample is fused with a |
| assay data | laboratory procedures used and whether the technique is considered | mixture of lead oxide, sodium carbonate, borax, silica and other |
| and | partial or total. | reagents as required, inquarted with 6 mg of gold-free silver and then |
| laboratory | • For geophysical tools, spectrometers, handheld XRF instruments, etc, | cupelled to yield a precious metal bead. The bead is digested in 0.5 |
| tests | the parameters used in determining the analysis including instrument | mL dilute nitric acid in the microwave oven. 0.5 mL concentrated |
| make and model, reading times, calibrations factors applied and their | hydrochloric acid is then added and the bead is further digested in the | |
| derivation, etc. | microwave at a lower power setting. The digested solution is cooled, | |
| • Nature of quality control procedures adopted (eg standards, blanks, | diluted to a total volume of 10 mL with de-mineralized water, and | |
| duplicates, external laboratory checks) and whether acceptable levels | analyzed by atomic absorption spectroscopy against matrix-matched |
|
| of accuracy (ie lack of bias) and precision have been established. | standards. | |
| •ALS Laboratories ME-MS61: a 0.5g sample is subjected to near-total | ||
| digestion by a four-acid mixture and finished with a combination of | ||
| ICP Mass Spectrometry (MS) and Atomic Emission Spectroscopy | ||
| (AES). |
8
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| •Laboratory QAQC involves the use of internal lab standards using | ||
| certified reference material, blanks, splits and replicates as part of the | ||
| in house ALS procedures. | ||
| •No handheld tools were used with all assays performed at external | ||
| laboratories | ||
| •Quality control procedures for sampling were implemented | ||
| systematically; blanks and field duplicates were inserted every 10 | ||
| core samples (focused in mineralized zones), and standards were | ||
| inserted everyconsecutive 20 sample run. | ||
| Verification | • The verification of significant intersections by either independent or | •External data verification is not required at this time. |
| of sampling | alternative company personnel. | •No verification samples (including twinned holes) have been taken |
| and assaying |
• The use of twinned holes. • Documentation of primary data, data entry procedures, data |
•All Data, data entry procedures, data verification and data storage has been carried out by GBM staff in accordance with GBM Standard |
| verification, data storage (physical and electronic) protocols. | Operating Procedures (SOPs). GBM SOP’s meet industry best | |
| • Discuss any adjustment to assay data. | practice standards. Final Data verification and data storage has been | |
| managed by GBM Data Management staff using industry standard | ||
| Data Shed software. Field duplicates are reviewed to ensure they fall | ||
| within acceptable limits. | ||
| •No adjustments or calibrations were made to anyassaydata used. | ||
| Location of | • Accuracy and quality of surveys used to locate drill holes (collar and | •All collar locations were pegged by GBM personnel using handheld |
| data points | down-hole surveys), trenches, mine workings and other locations | GPS units. |
| used in Mineral Resource estimation. | •At the conclusion of the drilling program, all collars will be surveyed | |
| • Specification of the grid system used. | by Licenced Surveyor. | |
| • Quality and adequacy of topographic control. | •Downhole drill surveys were carried out at nominally 25m intervals | |
| using a Reflex mutli-shot digital survey tool. | ||
| •All work was carried out in the Map Grid of Australia (MGA Zone 55) | ||
| using the GDA94 datum. | ||
| •The topographic surface was generated from Lidar airborne DTM | ||
| data. The Lidar survey was commissioned by GBM and flown in | ||
| November 2016. The horizontal and vertical accuracy of the survey is | ||
| 10 cm. | ||
| Data spacing | • Data spacing for reporting of Exploration Results. |
•The two drill-hole program at Glen Eva was designed as a multi- |
| and | • Whether the data spacing and distribution is sufficient to establish the | purpose program to generate geotechnical, metallurgical, waste rock |
| distribution | degree of geological and grade continuity appropriate for the Mineral | and resource assay data. Collars were sited and holes designed to |
| Resource and Ore Reserve estimation procedure(s) and | best meet these requirements. | |
| classifications applied. | •The suitability of spacing and orientation of the sampling for grade | |
| • Whether sample compositing has been applied. | and geological continuity will be established by variography at the | |
| resource calculation stage. Should further infill drilling be required to | ||
| meet resource requirements, this will be completed in due course. | ||
| •The samples were not compositedprior to submission to the |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| laboratory | ||
| Orientation | • Whether the orientation of sampling achieves unbiased sampling of | •The spacing and orientation of the sampling is generally appropriate |
| of data in | possible structures and the extent to which this is known, considering | to the main mineralized zone. |
| relation to | the deposit type. | •GLD0001 was drilled on existing drilling sections and intersected |
| geological | • If the relationship between the drilling orientation and the orientation | mineralisation at a high angle. Due to the design restrictions for waste |
| structure | of key mineralised structures is considered to have introduced a | rock and geotechnical data collection and limitations on collar site |
| sampling bias, this should be assessed and reported if material. | selection due to pit geometry, GLD0002 intersected mineralisation at | |
| an oblique angle. True mineralisation widths will be calculated upon | ||
| receipt of GLD0002 assayresults. | ||
| Sample | • The measures taken to ensure sample security. | •All drill core is transported from drill sites to the Company core |
| security | processing facility in Mt Coolon by Company personnel. Prepared | |
| samples are then transported to a commercial courier in Moranbah by | ||
| Company personnel where they are on-shipped directly to ALS | ||
| Laboratories in Townsville. | ||
| •Core, coarse chip rejects and pulps are stored at the GBM core | ||
| facility. | ||
| Audits or | • The results of any audits or reviews of sampling techniques and data. | •No audits of either the data or the methods used in this drilling |
| reviews | program have been undertaken to date. |
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 Glen Eva deposit is located within ML10227, approximately 12 |
| tenement | agreements or material issues with third parties such as joint | km SE of the Mt Coolon township and 10 km SE of the Koala gold |
| and land | ventures, partnerships, overriding royalties, native title interests, | mine. |
| tenure status | historical sites, wilderness or national park and environmental | •The ML is 100% owned by Mt Coolon Gold Mines Pty Ltd, a |
| settings. | subsidiary of GBM Resources Ltd. ML10227 expires on 31/1/24. | |
| • The security of the tenure held at the time of reporting along with any | •GBM is not aware of any material issues with third parties which may | |
| known impediments to obtaining a licence to operate in the area. | impede current or future operations at Glen Eva | |
| Exploration | • Acknowledgment and appraisal of exploration by other parties. | • BHP Minerals Exploration (1985-1989): |
| done by | BHP held an extensive belt of tenements over the Mt. Coolon region, | |
| other parties | extending up to 80km north, 30km south and 50km west of the Mt. | |
| Coolon township. The main target of exploration was epithermal style | ||
| precious metal mineralisation within the Bulgonunna Volcanics. | ||
| Grass roots exploration utilising stream sediment sampling and | ||
| reconnaissance prospecting located the Hill 273 (Glen Eva) prospect. | ||
| A sinter was identified at theprospect within weaklysiliceous,argillic |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| altered rhyolite tuffs. Subsequent BLEG soil sampling on a 100m x | ||
| 100m spaced grid produced a peak value of 11.4 ppb within a 1.25km | ||
| x 450m gold anomaly (>5ppb Au). Rock chipping returned a best | ||
| value of 0.11 ppm Au. Follow up drilling of 11 open percussion holes | ||
| to 24m depth failed to return any gold values greater than 0.05ppm. | ||
| • Aberfoyle Resources Ltd. (1990-1992): | ||
| Focused on demagnetisation zones associated with hydrothermal | ||
| alteration. Geological traversing delineated an area of subdued | ||
| magnetics associated with rhyolite sub-crop covered by epithermal | ||
| quartz float along a boundary fence line (Eastern Siliceous Zone | ||
| prospect). | ||
| • Austwhim Resources Ltd. (1992-1998) | ||
| Extensive exploration work concentrated on four main prospects and | ||
| included lag, soil and rock chip sampling, gridding and mapping, | ||
| followed by considerable RC, open hole percussion, RAB and NQ | ||
| diamond drilling of four prospects. Drill testing of the Fence and | ||
| Arsenic Anomalies delineated by surface geochemistry, failed to | ||
| intersect any significant mineralisation. Encouraging results from RC | ||
| percussion drilling on the margins of an intensely silicified rhyolite | ||
| complex at the Eastern Siliceous Zone returned a best intersection of | ||
| 15m @ 1.92g/t Au from 56m. A NQ2 diamond hole (243m TD) was | ||
| drilled to test the marginal breccia zones of the complex and failed to | ||
| intersect any significant intersections at depth. Austwhim withdrew | ||
| from a JV with Ross in August 1998. | ||
| • Dominion (1993-1995) | ||
| Extensive RAB, RCP and diamond core (NQ2) drilling program was | ||
| completed following up on a previous intersection of 33m @ 0.22g/t | ||
| Au in a percussion hole near an outcropping sinter at Glen Eva. An | ||
| indicated-inferred gold-silver resource was outlined at the Glen Eva | ||
| prospect based on 50m x 50m drill hole spacing over a 300 m strike | ||
| length. Using manual polygonal interpretation, Dominion estimated | ||
| an indicated and inferred resources of 425,000 t @ 4.7 g/t Au cut to | ||
| 20 g/t Au (64,220 oz), or 424,775 t @ 5.39 g/t Au uncut (73,786 oz) | ||
| both with approximately 177,300 oz of associated silver. | ||
| • Ross Mining Limited (1996-1999) | ||
| Extensive orientation geochemical surveys verified a coherent 1.6km | ||
| x 350m E-W trending +5ppb gold in soil anomaly (-2mm BCL) above | ||
| the main mineralized lode, with the peak (+10ppb Au) displaced | ||
| 400m to the west. Ross completed three additional resource | ||
| estimates after subsequent stages of drilling: |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| •541,600 t @ 4.37 g/t Au for 76,200 oz Au undiluted resource above | ||
| a 0.50 g/t cutoff and cut to 30 g/t Au (Ruxton). | ||
| • Measured 220,000 t @ 6.80 g/t Au 15.6 g/t Ag, Indicated 120,000 t | ||
| @ 3.20 g/t Au 8.60 g/t Ag for a total of 340,000 t @ 5.50 g/t Au 13.10 | ||
| g/t Ag containing 60,100 oz Au and 140,000 oz Ag. | ||
| • In 1996 Vigar estimated 450,000 t @ 4.90 g/t Au for 70,800 oz Au. | ||
| The Glen Eva deposit was mined by Ross mining NL over a period of | ||
| nine months in 1997. The mine produced 24,185 ounces of gold, | ||
| recovered from 156,000 t of ore. No prospect scale work was | ||
| conducted from July 1999. Delta Gold Ltd took over Ross Mining in | ||
| April 2000, so Delta Gold Ltd are now the active JV partners on the | ||
| Glen Eva EPM 9981. | ||
| • Drummond Gold (2005-2015) | ||
| Drummond drilled two RC holes for a total of 626 m in 2010 to test | ||
| mineralisation below the current Glen Eva pit. No further work was | ||
| undertaken by Drummond at Glen Eva. | ||
| Geology | • Deposit type, geological setting and style of mineralisation. | •Glen Eva represents a epithermal low sulphidation quartz adularia |
| pyrite gold system located in the basal sequences of the Late | ||
| Devonian to Early Carboniferous Drummond Basin ( Cycle 1 -Silver | ||
| Hills Volcanics) which through prolonged deformation and recent | ||
| erosion now occur as ‘windows’ generally adjacent to the Early | ||
| Palaezoic Anakie Inlier. | ||
| The Drummond Basin is structurally controlled by north-north-west | ||
| faults which were initiated in the early development of the basin. | ||
| Glen Eva mineralisation primarily occurs as epithermal colloform and | ||
| crustiform quartz veins within tectonic and hydrothermal brecciated | ||
| zones of the Silver Hill dacitic volcanics. Mineralisation is typically | ||
| overlain by a 20 m to 30 m thick sinter horizon and unconformably | ||
| overlain by up to 10 m of lateritised Tertiary sediments. | ||
| The entire volcanic sequence dips gently to the south-west at | ||
| approximately 25 ◦. The main quartz lenses strike west-north-west | ||
| and dip to the north-east at 20 ◦ just below the sinter cap. | ||
| The topography in the Glen Eva area is gently undulating with poor | ||
| drainage development and outcrop is restricted to the small zone of | ||
| sinter 100 m south-west of the concealed mineralisation. | ||
| Alteration adjacent to the main lodes is dominated by sericite and | ||
| pyrite which grades outwards into chlorite, calcite and pyrite. | ||
| The main fault trends strike west-north-west to north-west,dipsteeply |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| south-west and bound the mineralisation on the north-east side. | ||
| Drill hole | • A summary of all information material to the understanding of the | •Included in table below. |
| Information | exploration results including a tabulation of the following information | |
| for all Material drill holes: | ||
o easting and northing of the drill hole collar |
||
o elevation or RL (Reduced Level – elevation above sea level in |
||
| metres) of the drill hole collar | ||
o dip and azimuth of the hole |
||
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 averaging techniques, | •All quoted drill intercepts have been length-weighted where required. |
| aggregation | maximum and/or minimum grade truncations (eg cutting of high | •Intercepts were calculated using a 0.3 g/t Au cutoff grade and a |
| methods | grades) and cut-off grades are usually Material and should be stated. | maximum 2m internal dilution. No high-grade cut was applied. |
| • 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 |
•True widths are not reported and will be calculated upon receipt of |
| between | Exploration Results. | assay results for the second and last hole of the program at Glen |
| mineralisatio | • If the geometry of the mineralisation with respect to the drill hole | Eva. |
| n widths and | angle is known, its nature should be reported. |
|
| intercept | • If it is not known and only the down hole lengths are reported, there | |
| lengths | should be a clear statement to this effect (eg ‘down hole length, true | |
| _width not known’). _ | ||
| Diagrams | • Appropriate maps and sections (with scales) and tabulations of | •A collar plan with all collar locations and intercept callouts is included |
| intercepts should be included for any significant discovery being | in the report body. | |
| 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 | •Downhole length weighted average grades have been reported for all |
| reporting | practicable, representative reporting of both low and high grades | drillholes where above the defined cutoff. Where values are below |
| and/or widths should be practiced to avoid misleading reporting of | this no significant intersection (NSI) is noted. | |
| Exploration Results. |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Other | • Other exploration data, if meaningful and material, should be reported | •Not applicable at this time. This programme comprises only drilling. |
| substantive | including (but not limited to): geological observations; geophysical | Further work will be completed and reported in due course. |
| exploration | survey results; geochemical survey results; bulk samples – size and | |
| 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 |
•Infill drilling may be completed if the assessment of geological |
| extensions or depth extensions or large-scale step-out drilling). | continuity is considered unsatisfactory for Indicated resource | |
| • Diagrams clearly highlighting the areas of possible extensions, | classification. | |
| including the main geological interpretations and future drilling areas, | ||
| provided this information is not commercially sensitive. |
| Project | Hole Location | Hole Location | Hole Location | Hole Location | Hole Orientation(Local Grid) | Hole Orientation(Local Grid) | Hole Orientation(Local Grid) | Mineralisation Intersection | Mineralisation Intersection | Mineralisation Intersection | Mineralisation Intersection | Mineralisation Intersection | Mineralisation Intersection |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hole_ID | MGA_E | MGA_N | RL_m | **Azimuth⁰ ** | Dip⁰ | **EOH Depth_m ** | m_From | m_To | DH Length_m | True Width_m | **Gradeg/t Au ** | G*M DH Length | |
| Glen Eva | GLD0001 | 546585 | 7630419 | 259 | 180 | -37 | 200.4 | 146 | 159 | 13 | - | 3.6 | 46.6 |
| 147 | 151.4 | 4.4 | - | 9.5 | 41.8 | ||||||||
| Glen Eva | GLD0002 | 546761 | 7630184 | 258 | 300 | -35 | 217.69 | Results Pending |
Table. Summary of Glen Eva drill holes. Please note that co-ordinates are preliminary and subject to minor change on final survey pickup. Intersections are based on a 0.3g/t Cut-off and a maximum of 2 metres of included sub-grade material.
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