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GIBB RIVER DIAMONDS LIMITED — Capital/Financing Update 2021
Apr 5, 2021
64988_rns_2021-04-05_644dbef5-0c91-4f2c-8b5c-4537ce274963.pdf
Capital/Financing Update
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ASX RELEASE 6 April 2021 ASX Code: GIB
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Phase 3 Drilling Expands Gold Discovery at Edjudina, WA includes 30 metres at 2.20 g/t Au from surface
- Phase 3 RC drilling at the Neta Lodes Gold Prospect, Edjudina, WA has expanded the previous high grade mineralisation and defined two high grade cores from surface
• Phase 3 drill intersections at the Neta Lodes Prospect include (in grams per tonne Au): 30m at 2.20g/t from surface (GRC 01) 21m at 2.47g/t from 69m (GRC 15) 7m at 6.41g/t from 10m (GRC 13) 26m at 1.84g/t from 19m (GRC 02) 23m at 1.73g/t from 61m (GRC 14) 15m at 2.61g/t from 20m (GRC 06) 11m at 2.27g/t from 76m (GRC 16) 7m at 2.98g/t from 23m (GRC 14) 18m at 1.34g/t from 72m (GRC 20) 13m at 1.59g/t from surface (GRC 09) 26m at 1.08g/t from 54m (GRC 19) Plus numerous other mineralised intersections (Appendix A)
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The mineralisation is mainly hosted in two bodies – the Carlsen Lode (strike 160 metres) and Kasparov Lode (strike 150 metres), with both containing higher grade cores reporting >10 gram metres. Both lodes remain open at depth
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The Carlsen Lode higher grade core (strike 60 metres) has been defined from surface down to 80 metres and is still open at depth
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Mineralisation from surface, grades, geometry and location indicates potential for bulk open pit mining
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A contract has been signed with a Kalgoorlie drilling contractor to provide aircore drilling services commencing around the 19 May 2021. The aim of this Phase 4 drilling program will be to discover repetitions of Neta Lodes style mineralisation along the 13 km of underexplored and under-drilled strike at Edjudina
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GIB Executives Jim Richards and Michael Denny during the Phase 3 RC Drilling of the Neta Lodes Prospect at the Edjudina Gold Project, WA
Gibb River Diamonds Limited 1/16 Ord Street T +61 8 9422 9555 ABN 51 129 158 550 West Perth WA 6005
E [email protected] W www.gibbriverdiamonds.com
ASX RELEASE
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1.0 Edjudina Gold Project
GIB 100%
Gibb River Diamonds Limited (‘GIB’ or the ‘Company’) is pleased to announce results from the highly successful Phase 3 RC drilling program at the Neta Lodes Prospect, part of the Edjudina Gold Project (GIB 100%). This program took place from 2 to 11 March 2021. A total of 22 holes were drilled for 1,921 metres. There were no accidents or lost time incidents.
A total of 1,088 samples were assayed either as one metre splits (903 samples) or as composite samples (185 samples), mainly 6 metre composites. Blank, duplicate, standard and repeat samples were added as necessary to ensure data integrity for future resource calculations.
The highly successful Phase 3 drilling program has better defined and expanded the GIB Neta Lodes gold discovery. This is an exciting prospect which displays mineralisation from surface, grades, geometry and location which indicate potential for bulk open pit mining
The discovery of Neta Lodes, the first of its type in the Edjudina field, now provides an mineralisation model which will be used to guide ongoing exploration. Planning for a Phase 4 aircore drilling program is underway, which will be targeting Neta Lodes lookalike deposits along the highly prospective, under-explored and under-drilled 13km strike corridor at Edjudina.
This Phase 4 drilling program is scheduled to commence around the 19 May 2021. GIB has recently signed a contract with a quality Kalgoorlie based drilling contractor to provide these aircore drilling services.
Figure 1: Edjudina Gold Project – Location Map
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Figure 2: Edjudina Gold Project –Prospects Location Map
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2.0 Phase 3 RC Drilling Results - Neta Lodes Prospect
The aim of the Phase 3 RC drilling program was to test for extensions to the mineralisation at the Neta Lodes Prospect which was discovered by GIB in October 2020. This Phase 3 program was highly successful, with the size, grades, geometry, excellent metallurgy[5] and shallow nature of the Neta Lodes mineralisation now underscoring the outstanding potential to commercialise this discovery.
The Phase 3 drilling program returned multiple outstanding high grade gold intersections including:
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ASX RELEASE
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Table 1: Neta Lodes Prospect – Phase 3 RC Drilling Results Highlights
| Hole ID | From (m) |
To (m) |
Interval (m) |
Au (g/t) |
Lode | Comment |
|---|---|---|---|---|---|---|
| GRC01 | 0 | 30 | 30 | 2.20 | Carlsen | Si and Fe-altn minor Qz vn |
| GRC02 | 19 | 45 | 26 | 1.84 | Carlsen | Intensely Si-Lm altn phyllite |
| GRC04 | 100 | 106 | 6 | 1.70 | unassigned | 6m composite sample |
| GRC05 | 0 | 3 | 3 | 3.69 | Calcrete | Calcrete cap is mineralised |
| GRC06 | 20 | 35 | 15 | 2.61 | Carlsen | weathered; Fe-Si altn up to 25% Qz |
| GRC08 | 53 | 64 | 11 | 1.22 | Lasker | silicified; 10-50% Qz ~5% Py |
| GRC09 | 0 | 13 | 13 | 1.59 | Kasparov | Up to 10% massive white Qz |
| GRC13 | 10 | 17 | 7 | 6.41 | Kasparov | incl 2m @ 20.72g/t from 11m |
| GRC14 | 23 | 30 | 7 | 2.98 | Kasparov | incl 1m @ 13.69g/t, stoped 23.5- 26.0m |
| GRC14 | 61 | 84 | 23 | 1.73 | Carlsen/Lasker | Some stoping |
| GRC15 | 21 | 27 | 6 | 1.74 | Fisher | Stoped 20.3 - 22.8m |
| GRC15 | 69 | 90 | 21 | 2.47 | Carlsen/Lasker | incl 1m @ 25.40 g/t from 83m |
| GRC16 | 76 | 87 | 11 | 2.27 | Carlsen/Lasker | incl 2m @ 7.12 g/t from 77m |
| GRC18 | 22 | 31 | 9 | 1.65 | Kasparov | mod-strongly Lm-altn phyllite, Si alt |
| GRC18 | 43 | 49 | 6 | 2.78 | Carlsen | Fe-altered phyllite with Qz; bx |
| GRC19 | 54 | 80 | 26 | 1.08 | Carlsen | Ser; Silicified; incl massive grey Qz |
| GRC20 | 12 | 14 | 2 | 4.93 | unassigned | Lm-altn phyllite |
| GRC20 | 72 | 90 | 18 | 1.34 | Carlsen | silicified phyllite c Qz ~1% pyrite |
| GRC21 | 78 | 84 | 6 | 1.64 | Carlsen | 6m composite. Ser phyllite |
| GRC22 | 12 | 38 | 16 | 0.53 | unassigned | incl 6m @ 1.45 g/t and 6m @ 0.24 g/t |
| GRC22 | 61 | 66 | 5 | 1.45 | Kasparov | silicified phyllite, 50% Qz ~1% sulfide |
Intervals are reported as drilled and are not reported as true widths. Results are uncut Appendix A contains a set of drilling results for every hole which includes further significant results. Qualifiers for this table are in Appendix A.
Detailed geology of the Neta Lodes Prospect is in the GIB ASX release dated 8 October 2020[3] .
The Neta Lodes Prospect has now been confirmed by the results of the Phase 3 drilling program to be a significant discovery of shallow, high grade gold mineralisation:
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The Carlsen Lode mineralisation has a strike of 160 metres and is shown in Longsection E (Figure 8). Importantly, a well-defined higher grade core at Carlsen (>10 grams Au x metres) has a strike of 60 metres and provides excellent potential for starter material for mining. This core commences from surface, extends to 80 metres depth and is still open at depth. Carlsen also outcrops in artisinal workings as demonstrated by a GIB channel sample of 1 metre @ 5.95g/t.[3]
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The Kasparov Lode mineralisation lies sub-parallel to the Carlsen Lode (about 20 metres to the north-east), and is shown in Longsection F (Figure 9). Kasparov is also a coherent mineralised body with a higher grade core which also extends to surface. The Kasparov Lode is still open at depth.
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There is considerable additional mineralisation within the Neta Lodes drilling envelope which has yet to be placed into the geological model and some further infill and step-out drilling is required to categorise this material and fully define the extent of the lodes.
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Figure 3: Neta Lodes Plan View – Drilling Phases 1 & 3 Results Highlights –
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The recently discovered Neta Lodes gold mineralisation is markedly different from the material reportedly mined at the historic underground Neta gold mine and also as reported from workings on the rest of the Edjudina Line, which were a series of high grade quartz boudins with minor gangue mineralisation.
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The Edjudina Goldfield is remarkable for its structural uniformity with a strike of 145[°] to the northwest and a dip of 80[°] to the east. The Neta Lodes mineralisation has a similar strike and dip, but appears to be more structurally complex with multiple lode systems associated with strong hydrothermal alteration.
The Neta Lodes mineralisation is hosted in phyllite with argillic-hematite-limonite alteration, there is minor quartz veining and silica flooding. The material is predominantly highly fissile and can be easily broken up in the hand. Despite the strong hydrothermal alteration, the original phyllitic texture often remains and the mineralisation appears to be a replacement style of the calcareous (and in parts carbonaceous?) phyllite, with rare overprinted quartz veining.
Figure 4: Neta Lodes – Section A
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Figure 5: Neta Lodes – Section B
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The 6 metre composite assays indicated in green above are awaiting splits (one metre) assays. The 6m composite assay results are included in Appendix A
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Figure 6: Neta Lodes – Section C
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Neta Lodes Mineralisation:
This photo was taken where Carlsen Lode mineralisation outcrops in an old timers pit[3] . The channel sample assayed 1 metre at 5.95g/t
Note the strong argillic/limonite alteration
This is the up dip extension of the Carlsen Lode
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Figure 7: Neta Lodes – Section D
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The 6 metre composite assays indicated in green above are awaiting splits (one metre) assays. The 6m composite assay results are included in Appendix A
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Neta Lodes Phase 3 RC drilling samples, calico one metre ‘splits’ sample bags sit on top of the green cyclone bags
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Figure 8: Neta Lodes – Long Section E - Carlsen Lode
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Figure 9: Neta Lodes – Long Section F - Kasparov Lode
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The figures above indicate the Neta Lodes mineralisation ends well prior to the third party tenement boundary to the south and all of the Neta Lodes mineralisation is interpreted to be within the GIB ground.
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ASX RELEASE
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6.0 Summary and Lookahead
The Company is very pleased with the Phase 3 drilling results and the ongoing delineation of the Neta Lodes gold discovery, especially of the higher grade cores. This success has provided GIB with a mineralisation model to guide future exploration within the Edjudina Goldfield. The means by which to execute that exploration is the very cost-efficient shallow aircore drilling.
The Board of GIB believes that shareholder value can be quickly enhanced through further gold discoveries at Edjudina. To pursue this aim, the Phase 4 aircore drilling program is scheduled to commence at Edjudina around the 19 May 2021.
This Phase 4 program is targeting repetitions of Neta Lodes style mineralised bodies along the 13 km of under-explored and under-drilled strike at Edjudina. The extensive database compiled by GIB is currently being interrogated to define targets for this program.
In part due to the recent Ellendale Option sale, the Company is in an excellent financial position to execute further drilling programs at Edjudina.
Jim Richards Executive Chairman
Enquiries To: Mr Jim Richards +61 (0)408 902 314
References:
1GIB Acquires Option to Purchase the Historic and High Grade Edjudina Gold Project in the Eastern Goldfields of WA; GIB ASX Release dated 16 July 2020
2Triumph Project Exploration Report; Nexus Minerals Limited dated 15 August 2019
3Major Gold Discovery at Edjudina, WA- 36m at 4.0 g/t from 4m; GIB ASX Announcement dated 8 October 2020
4Excellent Metallurgical Recoveries from Bottle Roll Testing of the Neta Lodes Gold Discovery; GIB ASX Announcement dated 26 November 2020
5Neta Lodes Prospect Strike doubles; GIB ASX Announcement dated 21 December 2020
For a further list of references used in previous releases refer to GIB ASX Announcement dated 25 August 2020
Competent Persons Statement
The information in this report that relates to previously reported exploration results and new exploration results is based on information compiled by Mr. Jim Richards who is a Member of The Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Mr. Richards is a Director of Gibb River Diamonds Limited. Mr. Richards 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 Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr. Richards consents to the inclusion in the report of the matters based on the information in the form and context in which it appears.
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ASX RELEASE
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Appendix A: Phase 3 Drill Results Table
| Hole ID | From (m) |
To (m) |
Interval (m) |
Au (g/t) |
Lode | Comment |
|---|---|---|---|---|---|---|
| GRC001 | 0 | 30 | 30 | 2.20 | Carlsen | Si and Fe-altn minor Qz vn |
| GRC001 | 30 | 36 | 6 | 0.25 | Lasker | 6m composite |
| GRC002 | 0 | 2 | 2 | 0.82 | Kasparov | |
| GRC002 | 9 | 10 | 1 | 0.28 | unassigned | |
| GRC002 | 15 | 16 | 1 | 1.24 | unassigned | |
| GRC002 | 19 | 45 | 26 | 1.84 | Carlsen | IntenselySi-Lm altnphyllite |
| GRC002 | 45 | 59 | 14 | 0.36 | Lasker | |
| GRC003 | 0 | 4 | 4 | 0.79 | Fischer | |
| GRC003 | 22 | 28 | 6 | 0.14 | Kasparov | 6m composite sample |
| GRC003 | 52 | 58 | 6 | 0.28 | Carlsen | 6m composite sample |
| GRC003 | 64 | 83 | 19 | 0.70 | Lasker | Siphyllite with ~1% sulfide,5% Qz vns |
| GRC004 | 0 | 3 | 3 | 1.29 | Calcrete | |
| GRC004 | 10 | 16 | 6 | 0.21 | Fischer | 6m composite sample |
| GRC004 | 34 | 40 | 6 | 0.14 | Kasparov | 6m composite sample |
| GRC004 | 58 | 64 | 6 | 0.09 | Carlsen | 6m composite sample |
| GRC004 | 74 | 94 | 20 | 0.39 | Lasker/Carlsen? | Si-altn serphyllite with sulfide |
| GRC004 | 100 | 106 | 6 | 1.70 | unassigned | 6m composite sample |
| GRC005 | 0 | 3 | 3 | 3.69 | Calcrete | |
| GRC005 | 24 | 30 | 6 | 0.15 | Fischer | 6m composite sample |
| GRC005 | 53 | 55 | 2 | 2.93 | Kasparov | ~25% intensely silicified ~1-5% sulfides |
| GRC005 | 66 | 72 | 6 | 0.16 | Carlsen | 6m composite sample |
| GRC005 | 87 | 108 | 21 | 0.34 | Lasker | incl a 6m composite(0.21g/t) |
| GRC006 | 0 | 2 | 2 | 0.47 | Calcrete | |
| GRC006 | 10 | 17 | 7 | 0.22 | unassigned | incl [email protected]/t |
| GRC006 | 20 | 35 | 15 | 2.61 | Carlsen | weathered; Fe-Si altn Mph, up to 25% Qz |
| GRC006 | 38 | 44 | 6 | 0.20 | unassigned | 6m composite |
| GRC007 | 0 | 2 | 2 | 0.27 | Calcrete | |
| GRC007 | 22 | 34 | 12 | 0.23 | unassigned | two 6m composites |
| GRC007 | 39 | 50 | 11 | 0.53 | Carlsen | Fe-Si altn Mph,textures destroyed |
| GRC007 | 66 | 72 | 6 | 0.21 | unassigned | 6m composite |
| GRC008 | 0 | 5 | 5 | 0.71 | Kasparov | |
| GRC008 | 30 | 48 | 18 | 0.18 | unassigned | three 6m composites |
| GRC008 | 48 | 52 | 4 | 0.29 | Carlsen | 4m composite sample |
| GRC008 | 53 | 64 | 11 | 1.22 | Lasker | silicified;10-50% Qz ~5%$Py |
| GRC009 | 0 | 13 | 13 | 1.59 | Kasparov | Upto 10% massive white Qz |
| GRC009 | 27 | 30 | 3 | 0.38 | unassigned | |
| GRC009 | 67 | 77 | 10 | 0.60 | Lasker | |
| GRC010 | 1 | 6 | 5 | 0.79 | Calcrete | |
| GRC010 | 26 | 29 | 3 | 0.61 | Kasparov | |
| GRC010 | 41 | 43 | 2 | 1.29 | Kasparov | |
| GRC010 | 84 | 86 | 2 | 0.72 | Lasker | |
| GRC011 | 0 | 3 | 3 | 0.87 | Calcrete | |
| GRC011 | 43 | 44 | 1 | 0.41 | unassigned | |
| GRC011 | 54 | 64 | 10 | 0.69 | Kasparov | weak-mod Fe alt'n of ~20% of chips |
| GRC011 | 89 | 95 | 6 | 0.25 | unassigned |
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ASX RELEASE
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| Hole ID | From (m) |
To (m) |
Interval (m) |
Au (g/t) |
Lode | Comment |
|---|---|---|---|---|---|---|
| GRC011 | 0 | 3 | 3 | 0.87 | Calcrete | |
| GRC011 | 43 | 44 | 1 | 0.41 | unassigned | |
| GRC011 | 54 | 64 | 10 | 0.69 | Kasparov | weak-mod Fe alt'n of ~20% of chips |
| GRC011 | 89 | 95 | 6 | 0.25 | unassigned | |
| GRC012 | 0 | 2 | 2 | 0.30 | Calcrete | |
| GRC012 | 7 | 9 | 2 | 1.15 | unassigned | |
| GRC012 | 36 | 42 | 6 | 0.17 | unassigned | 6m composite sample |
| GRC012 | 47 | 54 | 7 | 0.37 | Lasker | |
| GRC013 | 0 | 3 | 2 | 0.70 | Calcrete | |
| GRC013 | 10 | 17 | 7 | 6.41 | Kasparov | incl [email protected]/t from 11m |
| GRC013 | 27 | 45 | 18 | 0.23 | unassigned | 3 x 6m composites |
| GRC013 | 47 | 49 | 2 | 0.44 | unassigned | |
| GRC013 | 57 | 72 | 15 | 0.21 | Lasker | |
| GRC014 | 0 | 3 | 3 | 0.48 | Calcrete | |
| GRC014 | 11 | 12 | 1 | 0.28 | unassigned | |
| GRC014 | 23 | 30 | 7 | 2.98 | Kasparov | incl 1m @ 13.69g/t, backfilled stope 23.5-26.0m |
| GRC014 | 44 | 45 | 1 | 0.34 | unassigned | |
| GRC014 | 53 | 58 | 5 | 0.51 | unassigned | Stoped 54.5 - 56.0m |
| GRC014 | 61 | 84 | 23 | 1.73 | Carlsen/Lasker | incl 1m @ 12.05 g/t from 65m, 1m @ 13.88m from 67m, 1m @ 7.01 from 73m. Stoped 66.8-67.5m |
| GRC015 | 0 | 3 | 3 | 1.33 | Calcrete | |
| GRC015 | 21 | 27 | 6 | 1.74 | Fisher | incl 1m @ 9.01 g/t from 23m. Stoped 20.3 - 22.8m |
| GRC015 | 33 | 35 | 2 | 0.67 | Kasparov | Stoped 34.3 - 36.8m |
| GRC015 | 56 | 60 | 4 | 0.55 | unassigned | |
| GRC015 | 69 | 90 | 21 | 2.47 | Carlsen/Lasker | incl 1m @ 11.48 g/t from 69m & 1m @ 25.40 g/t from 83m |
| GRC016 | 0 | 5 | 5 | 0.91 | Calcrete | |
| GRC016 | 24 | 36 | 12 | 0.74 | unassigned | 2 x 6m composites |
| GRC016 | 43 | 51 | 8 | 0.50 | Kasparov | Stoped 44.5 - 46.5m |
| GRC016 | 64 | 70 | 6 | 0.25 | unassigned | 6m composite sample |
| GRC016 | 76 | 87 | 11 | 2.27 | Carlsen/Lasker | incl [email protected]/t from 77m |
| GRC016 | 96 | 99 | 3 | 0.32 | unassigned | |
| GRC017 | 0 | 1 | 1 | 0.41 | Calcrete | |
| GRC017 | 24 | 29 | 5 | 0.13 | unassigned | |
| GRC017 | 34 | 38 | 4 | 0.29 | Lasker |
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ASX RELEASE
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| Hole ID | From (m) |
To (m) |
Interval (m) |
Au (g/t) |
Lode | Comment |
|---|---|---|---|---|---|---|
| GRC018 | 0 | 1 | 1 | 0.31 | Calcrete | |
| GRC018 | 12 | 14 | 2 | 0.31 | unassigned | |
| GRC018 | 16 | 17 | 1 | 2.57 | Kasparov | Lm-alteredphyllite |
| GRC018 | 22 | 31 | 9 | 1.65 | Kasparov | mod-strongly Lm-altn phyllite, local weak Si alteration |
| GRC018 | 34 | 35 | 1 | 0.32 | unassigned | |
| GRC018 | 37 | 38 | 1 | 0.37 | unassigned | |
| GRC018 | 43 | 49 | 6 | 2.78 | Carlsen | Fe-alteredphyllite with Qz;bx |
| GRC018 | 62 | 70 | 8 | 1.08 | Carlsen | silicifiedphyllite ~1%pyin Qz |
| GRC018 | 75 | 77 | 2 | 0.68 | Lasker | |
| GRC018 | 86 | 90 | 4 | 0.23 | unassigned | |
| GRC019 | 0 | 9 | 9 | 0.21 | Calcrete | incl 6m composite(0.19g/t) |
| GRC019 | 21 | 31 | 10 | 0.34 | unassigned | incl 6m composite(0.40g/t) |
| GRC019 | 36 | 42 | 6 | 0.35 | Kasparov | |
| GRC019 | 54 | 80 | 26 | 1.08 | Carlsen | Ser;Silicified;incl massivegreyQz |
| GRC019 | 80 | 86 | 6 | 0.21 | Lasker | |
| GRC020 | 12 | 14 | 2 | 4.93 | unassigned | Lm-altnphyllite |
| GRC020 | 21 | 27 | 6 | 0.43 | unassigned | |
| GRC020 | 46 | 47 | 1 | 0.39 | unassigned | |
| GRC020 | 50 | 57 | 7 | 1.12 | Kasparov | silicified ser altn; 20-50% Qz; 1-2% sulfides |
| GRC020 | 66 | 72 | 6 | 0.24 | unassigned | 6m composite |
| GRC020 | 72 | 90 | 18 | 1.34 | Carlsen | silicifiedphyllite c Qz ~1%pyrite |
| GRC020 | 90 | 96 | 6 | 0.35 | Lasker | 6m composite |
| GRC021 | 24 | 30 | 6 | 0.21 | unassigned | 6m composite |
| GRC021 | 78 | 84 | 6 | 1.64 | Carlsen | 6m composite. Serphyllite |
| GRC022 | 12 | 38 | 16 | 0.53 | unassigned | incl [email protected]/t and [email protected]/t |
| GRC022 | 61 | 66 | 5 | 1.45 | Kasparov | silicifiedphyllite,50% Qz ~1% sulfide |
| GRC022 | 84 | 108 | 24 | 0.31 | unassigned |
Intervals are reported as drilled and are not reported as true widths Composite samples were taken by representative spearing of the one metre samples All drilled material was sampled by either composites or splits
Unmineralised or commercially insignificant mineralised intervals have not been reported All holes drilled are reported; with best intersection(s) for that hole.
Results are uncut.
Mineralised intervals were collated and reported in this table using the criteria of commercial potential and exploration significance for follow-up drilling.
Stopes are old workings, if they have been backfilled this material is shown in the assays
Results are length averages of one metre assays except where annotated as being or including composites
All results reported are consecutive for that interval.
Repeat and duplicate assays for one metre samples were averaged for that metre. Follow-up assay of mineralised composites will lead to minor changes to this table. 'Fe alteration' includes argillic alteration.
Ser is sericite; Fe is iron; Si is silica; Qz is quartz; Lm is limonite; vn is vein; altn is alteration; m/l is mineralisation; c is with; incl is includes;
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Appendix B: Phase 3 Drill Collar Locations
| Hole ID | Dip degrees |
Azi degrees |
Total Depth (m) |
MGA94 zone 51 | ||
| mE | mN | mRL | ||||
| GRC001 | -59.9 | 230.7 | 42 | 449359 | 6707209 | 377 |
| GRC002 | -60.0 | 230.7 | 72 | 449374 | 6707221 | 378 |
| GRC003 | -60.0 | 229.9 | 99 | 449389 | 6707234 | 378 |
| GRC004 | -60.7 | 227.4 | 126 | 449396 | 6707240 | 378 |
| GRC005 | -60.4 | 227.7 | 114 | 449404 | 6707246 | 377 |
| GRC006 | -60.6 | 229.2 | 48 | 449371 | 6707193 | 377 |
| GRC007 | -60.3 | 229.3 | 78 | 449382 | 6707202 | 377 |
| GRC008 | -61.2 | 228.6 | 78 | 449390 | 6707208 | 378 |
| GRC009 | -61.6 | 227.2 | 96 | 449398 | 6707214 | 378 |
| GRC010 | -61.0 | 226.2 | 96 | 449406 | 6707221 | 378 |
| GRC011 | -60.9 | 229.1 | 108 | 449418 | 6707231 | 378 |
| GRC012 | -60.5 | 230.8 | 72 | 449404 | 6707191 | 378 |
| GRC013 | -60.8 | 227.5 | 78 | 449411 | 6707197 | 378 |
| GRC014 | -60.8 | 225.7 | 90 | 449419 | 6707204 | 378 |
| GRC015 | -63.6 | 227.5 | 102 | 449423 | 6707207 | 378 |
| GRC016 | -65.5 | 229.2 | 108 | 449427 | 6707210 | 378 |
| GRC017 | -61.0 | 231.6 | 48 | 449394 | 6707183 | 377 |
| GRC018 | -61.8 | 229.1 | 96 | 449375 | 6707253 | 376 |
| GRC019 | -61.3 | 226.8 | 102 | 449383 | 6707259 | 376 |
| GRC020 | -62.8 | 227.1 | 114 | 449391 | 6707265 | 375 |
| GRC021 | -60.0 | 49.2 | 84 | 449329 | 6707241 | 376 |
| GRC022 | -62.5 | 225.3 | 120 | 449384 | 6707286 | 375 |
Dips and Azis are from start of hole All holes were downhole surveyed
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JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
| Criteria | JORC Code explanation | Commentary | |
|---|---|---|---|
| Sampling | • Nature and quality of sampling (eg cut channels, random chips, or | •All samples were cyclone split. Cyclone splitter set to 5% for drillholes | |
| techniques | specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma |
GRC001 – 004 and 4% for drillholes GRC005 – 022. •Cyclone cleaned at the end of every hole. |
|
| sondes, or handheld XRF instruments, etc). These examples should | •Cyclone split component was placed in numbered calico bags | ||
| not be taken as limiting the broad meaning of sampling. | (approx. 3kg sample per bag), remainder went into annotated cyclone | ||
| • Include reference to measures taken to ensure sample representivity | bags and placed in rows with the bags folded closed. | ||
| and the appropriate calibration of any measurement tools or systems | •Cyclone splitter has two openings for the split component. For | ||
| used. | samples without duplicates the split from the second port went on the | ||
| • Aspects of the determination of mineralisation that are Material to the | ground. Sample duplicates were collected from the second port. | ||
| Public Report. | •Blanks and standards were inserted during drilling by the supervising | ||
| • In cases where ‘industry standard’ work has been done this would be | geologist. | ||
| relatively simple (eg ‘reverse circulation drilling was used to obtain 1 | •Composite samples were collected in selected intervals using a PVC | ||
| m samples from which 3 kg was pulverised to produce a 30 g charge | spear. These composite samples do not have standards, duplicates, | ||
| for fire assay’). In other cases more explanation may be required, | or blanks. | ||
| 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. |
•Samples were submitted to Jinning (Kalgoorlie) for pulverization to generate a 30g charge for fire assay analysis. |
||
| Drilling | • Drill type (eg core, reverse circulation, open-hole hammer, rotary air | •Profile Drilling RC Rig 1, 150mm hammer bit. Two 3m heavy wall rods | |
| techniques | blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other |
used behind the hammer to minimise drillhole deviation. •All drillholes were surveyed using a north-seeking Axis Champ Gyro |
|
| type, whether core is oriented and if so, by what method, etc). | SRO. Surveys started at 0m depth and were recorded every 30m and | ||
| at EOH. | |||
| Drill sample | • Method of recording and assessing core and chip sample recoveries |
•Sample recovery visually assessed on a metre-by-metre basis. | |
| recovery | and results assessed. • Measures taken to maximise sample recovery and ensure |
•Driller directed to use the minimum necessary air pressure to minimise loss of fine component. |
|
| representative nature of the samples. | •All samples cyclone split to ensure a representative sample | ||
| • Whether a relationship exists between sample recovery and grade | distribution. | ||
| and whether sample bias may have occurred due to preferential | •No sample bias is known or expected due to preferential loss/gain of | ||
| loss/gain of fine/coarse material. | fine/coarse material. | ||
| Logging | • Whether core and chip samples have been geologically and | •All drill spoil from all holes was quantitatively geologically logged on a | |
| geotechnically logged to a level of detail to support appropriate | metre-by-metre basis to a sufficient level of detail to support | ||
| Mineral Resource estimation, mining studies and metallurgical | appropriate Mineral Resource estimation, mining studies and | ||
| studies. | metallurgical studies. | ||
| • Whether logging isqualitative orquantitative in nature. Core(or | •All drillholes were bagged on a metre-by-metre basis forpotential |
16
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| costean, channel, etc) photography. | future use in metallurgical studies. | |
| • The total length andpercentage of the relevant intersections logged. | ||
| Sub- | • If core, whether cut or sawn and whether quarter, half or all core | •Every metre in this drill campaign was cyclone split to 5% (GRC001- |
| sampling techniques and sample preparation |
taken. • 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. |
004) or 4% (GRC005-022). •>>99% of samples were sampled dry. Sample wetness was recorded during logging. •Duplicate samples were generated in real time from the cyclone splitter. |
| • Quality control procedures adopted for all sub-sampling stages to | •Lab samples were pulverized to -80µm to generate a 30g charge for | |
| maximise representivity of samples. | fire assay analysis. | |
| • Measures taken to ensure that the sampling is representative of the in | •GIB inserted standards, duplicates and blanks into laboratory sample |
|
| situ material collected, including for instance results for field | submissions. This is in addition to internal lab QAQC procedures. | |
| duplicate/second-half sampling. | •GIB deems sample sizes to be appropriate for the grain size of the | |
| • Whether sample sizes are appropriate to the grain size of the material | material being sampled. |
|
| being sampled. | ||
| Quality of | • The nature, quality and appropriateness of the assaying and | •Samples were pulverized to -80µm to generate a 30g charge for four |
| assay data and laboratory tests |
laboratory procedures used and whether the technique is considered partial or total. • For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their |
acid digest and fire assay (FA/AAS) analysis. This is a total technique. •In addition to internal laboratory QAQC procedures, GIB inserted duplicates, standards, and blanks into the lab samples. •GIB’s standards are from Geostats (Fremantle) and blanks are white |
| derivation, etc. | brickies sand. Duplicates are described above. | |
| • Nature of quality control procedures adopted (eg standards, blanks, | •GIB analysed both its own QAQC samples and the internal lab QAQC | |
| duplicates, external laboratory checks) and whether acceptable levels | samples and deems acceptable levels of accuracy and precision |
|
| of accuracy (ie lack of bias) and precision have been established. | have been established. | |
| Verification | • The verification of significant intersections by either independent or | •Analysis was undertaken by Jinning Kalgoorlie. At the time of writing, |
| of sampling and assaying |
alternative company personnel. • The use of twinned holes. • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. |
no samples have been sent to other labs for cross-checking. Significant intersections have been verified by multiple GIB personnel. •No twinned holes were used. |
| • Discuss any adjustment to assay data. | •Drilling, sampling, primary data, and data verification procedures | |
| were drawn up prior to fieldwork and are stored on the GIB server. | ||
| •Physical copies of all data are stored in the GIB office. | ||
| •Duplicate/repeat samples were averaged to create the gold value for | ||
| those samples. No other adjustments were made to assay data. |
17
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Location of | • Accuracy and quality of surveys used to locate drill holes (collar and | •Drillholes were laid out by DGPS and all possible care was taken to |
| data points | down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. |
ensure drillholes were collared at their intended location. Datum is MGA94 zone 51. |
| • Specification of the grid system used. | •In addition to DGPS, LiDAR and high-definition drone imagery was | |
| • Quality and adequacy of topographic control. | used to site drillholes. | |
| •All RC drillholes were surveyed using a north-seeking Axis Champ | ||
| Gyro SRO. Surveys started at 0m depth and were recorded every | ||
| 30m and at EOH. | ||
| Data | • Data spacing for reporting of Exploration Results. | •Drillholes were spaced on nominal 20m x 20m, 20m x 10m, or 20m x |
| spacing 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 procedure(s) and classifications applied. |
5m grids, with local collar adjustments due to ground conditions. •No Mineral Resource or Ore Reserve procedures or classifications have been applied. •Sample compositing has been applied only to duplicate/repeat |
| • Whether sample compositing has been applied. | samples. | |
| Orientation | • Whether the orientation of sampling achieves unbiased sampling of | •Drillholes were oriented at 60° towards 231, or 60° towards 051 for |
| of data in | possible structures and the extent to which this is known, considering | GRC021 only. Local foliation strikes ~75° towards 051. As such these |
| relation to geological structure |
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. |
drillholes are oriented approximately perpendicular to foliation. •To the best of GIB’s current knowledge there is no sampling bias in this RC drilling program. |
| Sample | • The measures taken to ensure sample security. | •Samples were collected by GIB personnel in real time during drilling. |
| security | Calico bags containing composite samples or 1m splits were placed in green cyclone bags and cable tied closed, and stored in a safe |
|
| location until lab delivery. | ||
| •Samples were delivered and offloaded at the lab by GIB staff, where | ||
| they were placed in Bulka containers prior to processing. | ||
| •After delivery, samples were kept at the fenced Lab compound. Lab | ||
| personnel are on site during work hours and all access points are | ||
| closed and locked overnight. | ||
| Audits or | • The results of any audits or reviews of sampling techniques and data. | •An internal review of sampling techniques and data deemed GIB’s |
| reviews | processes to be compatible with JORC 2012 requirements. |
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Section 2 Reporting of Exploration Results
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | • Type, reference name/number, location and ownership including | •E31/1179 is beneficially held by GIB (100%). On 2ndDecember 2020 |
| tenement | agreements or material issues with third parties such as joint | GIB announcedit had exercised the Option to acquire 100% of the |
| and land tenure |
ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. |
Project. Registration of the change of ownership is awaiting WA State Revenue Office Stamp Duty assessment. |
| status | • 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. | ||
| Exploration | • Acknowledgment and appraisal of exploration by other parties. |
GIB has compiled a database of historic mining and |
| done by | exploration activity. A brief chronology is included below: | |
| other | •The main period of mining activity on the Edjudina line of workings | |
| parties | (the ‘Edjudina Line’) occurred between 1897 and 1921. •Government Geologist Andrew Gibb Maitland made the first |
|
| documented description of the Edjudina Line in 1903, which was | ||
| followed up by reports in 1903 and 1905 by State Government Mining | ||
| Engineer Alexander Montgomery. These reports described a number | ||
| of private batteries being run on the Edjudina Line at this time, with | ||
| some ore also carted to the nearby State Battery at Yarri. | ||
| •A minor revival in mining took place from 1936-1939, which was | ||
| curtailed by the start of World War 2. | ||
| •In 1974-75 Australian Anglo American Ltd explored the Edjudina line, | ||
| followed by United Nickel Exploration, Cambrian Exploration and | ||
| Penzoil of Australia Ltd (1979-81). | ||
| •In 1993 Pancontinental picked up the ground and conducted drilling | ||
| operations, relinquishing the ground in 1995. Little exploration work | ||
| was conducted over the next 14 years with the exception of Gutnick | ||
| Resources who are reported as having completed some wide spaced | ||
| drilling during this time, however a complete dataset for this work is | ||
| still being sourced. | ||
| •From 2010 to 2014 CoxsRocks Pty Ltd, a WA based private | ||
| company, conducted a ground magnetic survey, auger soil | ||
| geochemistry and limited aircore drilling. | ||
| •The Edjudina Gold Project has been held by Nexus Mt Celia Pty Ltd | ||
| from 2014 to present with one limited RC drilling program conducted | ||
| in that time. | ||
| •GIB completed a 66 hole, 2,756m AC drilling program on15th | ||
| September 2020,and a 157 hole, 6,162m AC program on29th | ||
| November 2020. |
19
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Geology | • Deposit type, geological setting and style of mineralisation. | •Historic reports describe mineralisation as occurring within silicified |
| stromatolites which were mineralized and then boudinaged during | ||
| diagenesis and regional deformation. In this situation gold is | ||
| stratabound and almost entirely hosted within the quartz boudins. | ||
| •GIB believes there is also a broader hydrothermal alteration event at | ||
| Neta Lodes in which Au mineralisation is associated with Si-Fe | ||
| alteration and possibly with porphyry intrusion. Gold mineralisation | ||
| does not appear to be associated with sulfides. | ||
| Drill hole | • A summary of all information material to the understanding of the | •See Appendix B (Drill Collar Locations). |
| 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, | •Duplicate samples and repeat samples were averaged for samples |
| aggregatio n methods |
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 |
with multiple assays. •No other changes were made to geochemical data. |
| 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. | ||
| Relationshi | • These relationships are particularly important in the reporting of | •Drillholes were oriented at 60° towards 231, or 60° towards 051 for |
| p between mineralisati on widths and |
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 |
GRC021 only. Local foliation strikes ~75° towards 051. As such these drillholes are oriented approximately perpendicular to foliation. •Historic reports describe mineralisation as occurring within silicified stromatolites which were mineralised and then boudinaged during diagenesis and regional deformation. In this situation gold is |
| width not known’). | stratabound and almost entirely hosted within the quartz boudins. |
20
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| intercept | ||
| lengths | ||
| Diagrams | • Appropriate maps and sections (with scales) and tabulations of | •See Maps, Tables and Figures within the body of this announcement. |
| 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 | •n/a – see body of this Announcement for comprehensive reporting of |
| reporting | practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of |
all exploration results. |
| Exploration Results. | ||
| Other | • Other exploration data, if meaningful and material, should be reported | •While historical drillhole information exists in some areas it is, in |
| substantive | including (but not limited to): geological observations; geophysical |
aggregate, not currently possible to report this drilling to JORC 2012 |
| exploration data |
survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential |
standards. In most cases the only data available to GIB is drillhole collar locations (local grid) and gold analyses. |
| deleterious or contaminating substances. | ||
| Further | • The nature and scale of planned further work (eg tests for lateral | •The Company will undertake additional drilling campaigns in 2021. |
| work | extensions or depth extensions or large-scale step-out drilling). | These are currently in the planning stage, see body of this |
| • Diagrams clearly highlighting the areas of possible extensions, | announcement. | |
| including the main geological interpretations and future drilling areas, | ||
| provided this information is not commercially sensitive. |
End
21