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AUREKA LIMITED — Capital/Financing Update 2021
Mar 3, 2021
64352_rns_2021-03-03_191c6f84-37c6-44ad-a111-ea06c038bcc9.pdf
Capital/Financing Update
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ASX Announcement
04 March 2021
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HIGH-GRADE SILVER HITS EXPAND POTENTIAL OF MORNING BILL PROSPECT AT GLENLYLE
NEW AIR CORE RESULTS SPUR IMMEDIATE START TO DIAMOND CORE DRILLING CAMPAIGN
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Navarre has received further encouraging silver and gold assay results from its recently completed 8,400 metre expansion air-core (AC) drilling program on its greenfields Glenlyle tenement, EL5497.
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The results from the Morning Bill prospect at Glenlyle include grades of up to 301 grams per tonne (g/t) of silver and 1.3 g/t of gold.
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Strongly anomalous gold, silver, lead and zinc grades continue to expand the mineralised footprint to approximately 400 metres by 700 metres, remaining open along strike and at depth.
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These results provide further evidence Navarre is honing in on a large concealed polymetallic mineralised system.
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A 2,000 metre diamond core drilling campaign has commenced.
Navarre Minerals Limited ( Navarre or the Company ) ( ASX: NML ) reports outstanding gold and silver results at its 100%-owned Glenlyle tenement (EL5497) in western Victoria, with the potential for broader polymetallic mineralisation (Figure 1).
The impressive intercepts come from the Company’s just-completed expansion drilling program at its Morning Bill prospect, the key area of focus on the Glenlyle tenement and surrounds.
The drilling detected strongly anomalous gold, silver, lead and zinc grades along more than 700 metres of strike (north-west to south-east) and approximately 400 metres in width.
A diamond drilling rig has now started a 2,000 metre program to drill under the best Morning Bill AC results.
In all, the drilling covered 8,388 metres of AC drilling across 102 angled holes. Of these, 63 holes were on the Morning Bill prospect, covering 5,508 metres. The remaining 39 holes explored regional targets elsewhere on the Glenlyle tenement, covering 2,880 metres.
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The regional targets were selected because they had geophysical signatures similar to Morning Bill or the nearby Cayley Lode, where Stavely Minerals (ASX: SVY) last year encountered “exceptional” copper, gold and silver grades (SVY: ASX announcement 26 September, 2019).
The results from Morning Bill double the previously identified mineralisation to 700 metres of strike, with the potential to expand this further pending results from the remainder of the program (Figures 2 & 3).
The mineralisation occurs beneath a veneer of younger, unmineralised cover known as the Newer Volcanics, ranging in thickness from approximately five to 30 metres (Figure 3).
The assays from 17 holes have been previously reported, with this release covering assays from the latest 25 AC holes received. There are a further 60 holes with results pending.
Highlights from the latest drilling include (See Tables 1-6 and Figures 2 & 3):
Silver
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75 metres at 12.6 g/t silver from 21m to end of hole, including 38m @ 23.5 g/t silver , 1m @ 301 g/t silver and 1m @ 207 g/t silver (GAC126)
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84m @ 1.9 g/t silver from 36m to end of hole, including 1m @ 36.7 g/t silver (GAC127)
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73m @ 1.4 g/t silver from 41m to end of hole, including 1m @ 17.3 g/t silver (GAC128)
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78m @ 1.1 g/t silver from 41m to end of hole, including 7m @ 4.4 g/t silver (GAC124)
Gold
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1m @1.3 g/t gold from 99m (GAC123)
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1m @1.2 g/t gold from 45m (GAC128)
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1m @ 1.2g/t gold from 76m (GAC127)
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1m @ 1.1 g/t gold from 28m (GAC126)
The recently completed program expands on three earlier phases of reconnaissance AC drilling at the Glenlyle tenement, which also showed strong silver-gold mineralisation (refer to ASX announcements on 23 April 2018, 21 March 2019 and 14 April 2020).
The best previously announced AC intercepts at Morning Bill included:
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23m @ 30.3 g/t silver from 76m to end of hole, including 2m @ 245 g/t silver, 0.5 g/t gold & 0.1% zinc (GAC054).
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47m @ 11.8 g/t silver from 58m to end of hole, including 1m @ 390 g/t silver, 1.0 g/t gold, 0.3% lead & 0.7% zinc (GAC055)
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ASX Announcement
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Situated 25 kilometres south-west of Ararat, the Glenlyle tenement is hosted within the Dryden-Stavely Volcanic Belt. This structure also hosts Stavely Minerals’ Cayley Lode copper discovery at its nearby Thursdays Gossan deposit (Figure 1).
Navarre discovered Morning Bill as a greenfields prospect in 2018.
Navarre’s Managing Director, Ian Holland, said:
“The latest air-core drilling results are outstanding and we have immediately kickstarted a diamond core drilling campaign to test the depth extents of a potentially large polymetallic mineral system on the Glenlyle tenement.
“The mineralised footprint at Morning Bill has now doubled in strike length, with further extensions likely given visual analysis of material drilled but not yet assayed.
“We are also encouraged by both the broad widths and tenor of the results from
the shallow drilling program, as well as the presence of a large magnetic low corresponding with this mineralisation.”
The drilling at Glenlyle is part of Navarre’s broader regional drilling program which has been expanded to approximately 25,000 metres.
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Figure 1: Location of Navarre’s western Victorian gold projects.
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GLENLYLE DRILLING PROGRAM
The Glenlyle tenement hosts a concealed target in the Stavely Arc Volcanics, where regional geophysics indicate a possible circular intrusive at depth (Figure 2).
As indicated by other prospects in the Stavely Arc, this suggests the potential for porphyry, epithermal and VMS (volcanogenic massive sulphide) mineralisation.
Navarre is executing a two-step drilling program consisting of:
- An initial phase of shallow drilling comprising 8,400 metres of expansion AC drilling, undertaken by two drilling rigs (now complete).
The AC drilling was designed to test the weathered top of the Dryden-Mt Stavely basement rocks for areas of enhanced alteration, quartz-silica veining and sulphide mineralisation. These are considered potential vectors towards primary precious and base metals mineralisation for deeper diamond core testing.
All AC holes were drilled at 60 degrees towards the east and to blade refusal, which typically occurs at the base of the weathered Dryden-Mt Stavely volcanic host rocks; and
- 2 . A follow-up program comprising 2,000 metres of diamond core drilling to test under the best AC drilling results. The first diamond core hole (GDD001) has just commenced at the Morning Bill prospect (Figure 3).
MORNING BILL PROSPECT
The step-out drilling at Morning Bill (GAC101-128) intersected similar discrete gold (plus zinc and lead) mineralisation within a broad envelope of anomalous silver (assaying between 0.5 and 12 g/t silver) as seen in the earlier phases of shallow AC drilling.
The gold-silver zone is interpreted to have lateral extents of approximately 400 metres (NE-SW) by 700m (NW-SE), remaining open along strike and at depth (Figures 2 & 3). The mineralisation occurs as fine-grained disseminations and as discrete silica and sulphide veinlets within a pervasive sericite-pyrite altered andesite.
These new results complement previously reported drill intercepts from the Morning Bill prospect (refer ASX announcements on 23 April 2018, 21 March 2019, 14 April 2020 & 4 February 2021):
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46m @ 8.1 g/t silver from 53m to end of hole, incl. 1m @ 252 g/t silver & 3.1 g/t gold (GAC030)
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33m @ 2.1 g/t silver from 44m to end of hole (GAC028)
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10m @ 1.2 g/t silver from 56m to end of hole (GAC029)
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31m @ 6.1 g/t silver from 54m to end of hole, incl. 1m @ 155 g/t silver & 4.0 g/t gold (GAC042)
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37m @ 2.9 g/t silver from 53m to end of hole (GAC045)
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48m @ 2.9 g/t silver from 51m to end of hole (GAC046)
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1m @ 6.7 g/t silver & 1.7 g/t gold from 83m (GAC047)
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23m @ 30.3 g/t silver from 76m to end of hole, incl. 2m @ 245 g/t silver & 0.5 g/t gold (GAC054)
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47m @ 11.8 g/t silver from 58m to end of hole, incl. 1m @ 390 g/t silver & 1.0 g/t gold (GAC055)
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27m @ 1.4 g/t silver from 49m to end of hole (GAC056)
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51m @ 7.3 g/t silver from 45m to end of hole, incl. 1m @ 248 g/t silver & 0.5 g/t gold (GAC057)
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60m @ 2.0 g/t silver from 36m to end of hole (GAC058)
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40m @ 1.3 g/t silver from 56m to end of hole (GAC059)
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15m @ 1.0 g/t silver from 70m (GAC060)
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5m @ 1.0 g/t gold from 58m, incl. 1m @ 3.6 g/t gold (GAC077)
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2m @ 1.7 g/t gold from 30m (GAC064)
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19m @ 2.8 g/t silver from 84m, incl. 3m @ 8.8 g/t silver (GAC075)
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46m @ 2.2 g/t silver from 54m to end of hole, incl. 1m @ 0.5 g/t gold & 0.5% zinc (GAC085)
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31m @ 1.0 g/t silver from 63m to end of hole (GAC073)
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9m @ 1.4 g/t silver from 58m (GAC086)
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3m @ 9.0 g/t silver & 0.1% Cu from 57m (GAC079)
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3m @ 1.6 g/t gold from 80m, from within 7m @ 1.0 g/t gold to end of hole (GAC101)
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24m @ 2.4 g/t silver from 60m to end of hole, incl. 1m @ 11.5 g/t silver (GAC101)
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25m @ 0.2% zinc from 59m to end of hole (GAC101)
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29m @ 1.2 g/t silver from 49m to end of hole (GAC102)
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30m @ 0.5 g/t silver from 51m to end of hole (GAC103)
These highly anomalous metal intersections are considered significant for this early stage of reconnaissance drilling into the weathered top of the basement rocks.
The broad silver and gold zone intersected in drilling at the Morning Bill prospect coincides with a magnetic low zone, interpreted to represent demagnetising of the volcanic (andesite) host rock as a result of pervasive silica-sericite alteration (Figures 2 & 3).
The orientation of the mineralisation and the controlling structures at the Morning Bill prospect are poorly understood at this stage of early exploration and the diamond drilling program is expected to provide a better understanding of the geometry of the mineralised system. The Company interprets the
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mineralised broad alteration zones to represent potential epithermal-style mineralisation situated above a deeper porphyry target.
THE NEXT STEPS:
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Receive, verify and report outstanding assays from the recently completed 8,400 metre AC program.
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Complete the current 2,000 metre diamond core program and report results.
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Figure 2: Map of Glenlyle showing interpreted geology, location of Morning Bill prospect and potential intrusive complex.
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Figure 3: Morning Bill prospect longitudinal projection showing silver zones relative to magnetic isosurfaces.
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BACKGROUND – GLENLYLE TENEMENT (EL 5497)
Navarre’s 2018 maiden drilling program at Glenlyle intersected a thick pile of andesitic volcanics below a 5 – 30 metre thick veneer of Newer Volcanics basalt cover. At the top of the basement rocks, a 15 – 20 metre thick metal depletion zone typically occurs. Below the depletion zone several areas of strong sericite-pyrite alteration have been intersected. This alteration correlates with a coincident gravity and magnetic low, interpreted to represent either a buried porphyry intrusive (potential source of mineralised fluids) or a broad alteration zone related to epithermal-style mineralisation.
Historical exploration completed by previous explorers at Glenlyle focused on the area of a 5 – 6 kilometre diameter circular magnetic feature, which stands out as unusual compared to the more linear magnetic trend of the Dryden – Stavely Volcanic Belt (Figure 2).
Drilling indicates that the complex circular magnetic feature is mainly composed of andesitic rocks containing varying degrees of alteration intensity. The andesitic volcanic rocks are concealed beneath the Newer Volcanics cover which post-dates mineralisation and has made surface sampling and exploration difficult in the past and could conceal significant zones of near surface mineralisation that remain to be detected.
Previous work indicates a high level of preservation of the original Stavely Arc sequence with probable sub-volcanic intrusions, which is a positive indicator for the prospectivity for porphyry and epithermal style mineralisation. The extent of precious and base metals as well as the alteration logged in drill holes is encouraging for the presence of significant mineralisation.
AC drilling is the initial stage of the Company’s discovery strategy used to rapidly and cost effectively identify the shallow footprint of basement gold and silver mineralisation from which deeper targeted drilling programs can be deployed with the aim of defining the extents of economic mineralisation.
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TABLE 1: AC Drill Hole Collars (GAC104 to GAC188)
| Hole ID | East (GDA94) |
North (GDA94) |
RL (AHD) |
Depth (m) |
Dip | Azimuth GDA (Degrees) |
Prospect | Comments |
|---|---|---|---|---|---|---|---|---|
| GAC104 | 653727 | 5857826 | 256 | 81 | -60 | 100 | Morning Bill | |
| GAC105 | 653806 | 5857812 | 256 | 87 | -60 | 100 | Morning Bill | |
| GAC106 | 653885 | 5857798 | 256 | 75 | -60 | 100 | Morning Bill | |
| GAC107 | 653964 | 5857784 | 256 | 90 | -60 | 100 | Morning Bill | |
| GAC108 | 654043 | 5857770 | 256 | 75 | -60 | 100 | Morning Bill | |
| GAC109 | 654030 | 5857638 | 256 | 99 | -60 | 100 | Morning Bill | |
| GAC110 | 653870 | 5857666 | 256 | 96 | -60 | 100 | Morning Bill | |
| GAC111 | 653710 | 5857694 | 256 | 87 | -60 | 100 | Morning Bill | |
| GAC112 | 653550 | 5857722 | 256 | 88 | -60 | 100 | Morning Bill | |
| GAC113 | 653390 | 5857750 | 256 | 66 | -60 | 100 | Morning Bill | |
| GAC114 | 654107 | 5857624 | 256 | 81 | -60 | 100 | Morning Bill | |
| GAC115 | 653642 | 5857955 | 256 | 100 | -60 | 100 | Morning Bill | |
| GAC116 | 653520 | 5857860 | 256 | 81 | -60 | 100 | Morning Bill | |
| GAC117 | 653448 | 5857860 | 256 | 84 | -60 | 100 | Morning Bill | |
| GAC118 | 653990 | 5857645 | 256 | 93 | -60 | 100 | Morning Bill | |
| GAC119 | 653950 | 5857652 | 256 | 81 | -60 | 100 | Morning Bill | |
| GAC120 | 653630 | 5857708 | 256 | 84 | -60 | 100 | Morning Bill | |
| GAC121 | 653470 | 5857736 | 256 | 72 | -60 | 100 | Morning Bill | |
| GAC122 | 653688 | 5858220 | 257 | 93 | -60 | 100 | Morning Bill | |
| GAC123 | 653629 | 5858037 | 256 | 113 | -60 | 100 | Morning Bill | |
| GAC124 | 653599 | 5858254 | 257 | 119 | -60 | 100 | Morning Bill | |
| GAC125 | 653510 | 5858267 | 257 | 109 | -60 | 100 | Morning Bill | |
| GAC126 | 653430 | 5858281 | 256 | 96 | -60 | 100 | Morning Bill | |
| GAC127 | 653545 | 5858112 | 256 | 114 | -60 | 100 | Morning Bill | |
| GAC128 | 653502 | 5858119 | 256 | 120 | -60 | 100 | Morning Bill | |
| GAC129 | 653546 | 5858054 | 256 | 90 | -60 | 100 | Morning Bill | Assays pending |
| GAC130 | 653469 | 5858066 | 256 | 99 | -60 | 100 | Morning Bill | Assays pending |
| GAC131 | 653403 | 5858077 | 256 | 92 | -60 | 100 | Morning Bill | Assays pending |
| GAC132 | 653466 | 5857978 | 256 | 87 | -60 | 100 | Morning Bill | Assays pending |
| GAC133 | 653228 | 5857779 | 255 | 87 | -60 | 100 | Morning Bill | Assays pending |
| GAC134 | 653067 | 5857806 | 256 | 75 | -60 | 100 | Morning Bill | Assays pending |
| GAC135 | 655600 | 5860097 | 267 | 45 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC136 | 655200 | 5860097 | 266 | 66 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC137 | 655395 | 5860101 | 267 | 58 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC138 | 655957 | 5859699 | 266 | 58 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC139 | 655555 | 5859698 | 265 | 57 | -60 | 090 | Regional Geophysics Target | Assays pending |
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ASX Announcement
| Hole ID | East (GDA94) |
North (GDA94) |
RL (AHD) |
Depth (m) |
Dip | Azimuth GDA (Degrees) |
Prospect | Comments |
|---|---|---|---|---|---|---|---|---|
| GAC140 | 655159 | 5859699 | 264 | 69 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC141 | 654757 | 5859699 | 264 | 66 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC142 | 653121 | 5861202 | 270 | 99 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC143 | 652998 | 5861198 | 270 | 99 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC144 | 654189 | 5857480 | 255 | 86 | -60 | 100 | Morning Bill | Assays pending |
| GAC145 | 654031 | 5857507 | 256 | 66 | -60 | 100 | Morning Bill | Assays pending |
| GAC146 | 653868 | 5857531 | 256 | 54 | -60 | 100 | Morning Bill | Assays pending |
| GAC147 | 653709 | 5857564 | 255 | 114 | -60 | 100 | Morning Bill | Assays pending |
| GAC148 | 653550 | 5857591 | 254 | 78 | -60 | 100 | Morning Bill | Assays pending |
| GAC149 | 653389 | 5857618 | 254 | 70 | -60 | 100 | Morning Bill | Assays pending |
| GAC150 | 653789 | 5857550 | 255 | 119 | -60 | 100 | Morning Bill | Assays pending |
| GAC151 | 653630 | 5857577 | 254 | 99 | -60 | 100 | Morning Bill | Assays pending |
| GAC152 | 653464 | 5857606 | 254 | 75 | -60 | 100 | Morning Bill | Assays pending |
| GAC153 | 653790 | 5857680 | 256 | 101 | -60 | 100 | Morning Bill | Assays pending |
| GAC154 | 653788 | 5857448 | 255 | 85 | -60 | 100 | Morning Bill | Assays pending |
| GAC155 | 653710 | 5857463 | 255 | 79 | -60 | 100 | Morning Bill | Assays pending |
| GAC156 | 653628 | 5857478 | 254 | 81 | -60 | 100 | Morning Bill | Assays pending |
| GAC157 | 653024 | 5858250 | 256 | 70 | -60 | 100 | Morning Bill | Assays pending |
| GAC158 | 652873 | 5858270 | 257 | 86 | -60 | 100 | Morning Bill | Assays pending |
| GAC159 | 654037 | 5857149 | 254 | 50 | -60 | 100 | Morning Bill | Assays pending |
| GAC160 | 653897 | 5857174 | 254 | 44 | -60 | 100 | Morning Bill | Assays pending |
| GAC161 | 653779 | 5857200 | 255 | 60 | -60 | 100 | Morning Bill | Assays pending |
| GAC162 | 655860 | 5860501 | 270 | 102 | -60 | 100 | Morning Bill | Assays pending |
| GAC163 | 655560 | 5860500 | 269 | 49 | -60 | 100 | Morning Bill | Assays pending |
| GAC164 | 655159 | 5860499 | 268 | 69 | -60 | 100 | Morning Bill | Assays pending |
| GAC165 | 654560 | 5860499 | 267 | 69 | -60 | 100 | Morning Bill | Assays pending |
| GAC166 | 652798 | 5861201 | 270 | 119 | -60 | 100 | Morning Bill | Assays pending |
| GAC167 | 652469 | 5861202 | 267 | 93 | -60 | 100 | Morning Bill | Assays pending |
| GAC168 | 653393 | 5858282 | 256 | 108 | -60 | 100 | Morning Bill | Assays pending |
| GAC169 | 653360 | 5858901 | 263 | 78 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC170 | 653162 | 5858898 | 263 | 84 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC171 | 652983 | 5858899 | 261 | 90 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC172 | 653959 | 5858895 | 261 | 96 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC173 | 654301 | 5858946 | 259 | 93 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC174 | 654758 | 5858897 | 261 | 62 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC175 | 655155 | 5858896 | 261 | 60 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC176 | 655559 | 5858896 | 262 | 66 | -60 | 090 | Regional Geophysics Target | Assays pending |
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| Hole ID | East (GDA94) |
North (GDA94) |
RL (AHD) |
Depth (m) |
Dip | Azimuth GDA (Degrees) |
Prospect | Comments |
|---|---|---|---|---|---|---|---|---|
| GAC177 | 655959 | 5858899 | 263 | 47 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC178 | 653161 | 5859696 | 264 | 84 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC179 | 653559 | 5859696 | 265 | 72 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC180 | 653958 | 5859700 | 266 | 86 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC181 | 654358 | 5859698 | 264 | 70 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC182 | 653126 | 5860497 | 267 | 108 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC183 | 652799 | 5860500 | 268 | 66 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC184 | 652400 | 5860499 | 267 | 69 | -60 | 090 | Regional Geophysics Target | Assays pending |
| GAC185 | 653459 | 5858271 | 257 | 102 | -60 | 100 | Morning Bill | Assays pending |
| GAC186 | 653428 | 5858337 | 256 | 92 | -60 | 100 | Morning Bill | Assays pending |
| GAC187 | 653397 | 5858340 | 256 | 111 | -60 | 100 | Morning Bill | Assays pending |
| GAC188 | 653363 | 5858348 | 256 | 114 | -60 | 100 | Morning Bill | Assays pending |
TABLE 2: Significant gold intercepts (GAC104 – GAC128)
| Hole ID | From (m) |
To (m) |
Interval (m) |
Gold (g/t) |
Comments |
|---|---|---|---|---|---|
| GAC105 and |
66 | 67 | 1 | 0.3 | |
| 73 | 75 | 2 | 0.3 | ||
| GAC111 d and |
30 | 31 | 1 | 0.4 | |
| 49 | 50 | 1 | 0.3 | ||
| GAC123 and |
54 | 55 | 1 | 0.3 | |
| 99 | 100 | 1 | 1.3 | ||
| GAC126 includes and |
24 | 30 | 6 | 0.4 | |
| 28 | 29 | 1 | 1.1 | ||
| 48 | 49 | 1 | 0.4 | ||
| GAC127 includes and and |
76 | 78 | 2 | 0.7 | |
| 76 | 77 | 1 | 1.2 | ||
| 85 | 87 | 2 | 0.4 | ||
| 95 | 97 | 2 | 0.3 | ||
| GAC128 and and |
43 | 47 | 4 | 0.8 | |
| 45 | 46 | 1 | 1.2 | ||
| 51 | 52 | 1 | 0.3 |
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TABLE 3: Significant silver intercepts (GAC104 – GAC128)
| Hole ID | From (m) |
To (m) |
Interval (m) |
Silver (g/t) |
Comments |
|---|---|---|---|---|---|
| GAC104 | 54 | 59 | 5 | 0.7 | |
| GAC109 | 45 | 46 | 1 | 1.8 | |
| GAC110 and |
41 | 47 | 6 | 1.0 | |
| 85 | 93 | 8 | 0.9 | ||
| GAC111 and |
47 | 60 | 13 | 1.1 | |
| 69 | 86 | 17 | 0.6 | ||
| GAC112 | 47 | 85 | 38 | 1.3 | |
| GAC115 | 53 | 100 | 47 | 0.6 | Broad silver zone to end of hole |
| GAC116 includes |
51 | 81 | 30 | 0.9 | Broad silver zone to end of hole |
| 52 | 71 | 19 | 1.1 | ||
| GAC117 | 74 | 84 | 10 | 0.4 | Broad silver zone to end of hole |
| GAC120 includes |
34 | 84 | 50 | 0.6 | Broad silver zone to end of hole |
| 46 | 52 | 6 | 1.7 | ||
| GAC121 | 46 | 72 | 26 | 0.7 | Broad silver zone to end of hole |
| GAC122 | 53 | 93 | 40 | 0.4 | Broad silver zone to end of hole |
| GAC123 includes and |
52 | 89 | 37 | 0.9 | Hole ends in mineralisation |
| 55 | 57 | 2 | 5.9 | ||
| 98 | 113 | 15 | 0.6 | ||
| GAC124 includes and |
41 | 119 | 78 | 1.1 | Broad silver zone to end of hole |
| 79 | 82 | 3 | 3.3 | ||
| 111 | 118 | 7 | 4.4 | ||
| GAC125 and |
43 | 50 | 7 | 0.5 | |
| 61 | 62 | 1 | 1.9 | ||
| GAC126 includes includes includes and includes and and and |
21 | 96 | 75 | 12.6 | Broad silver zone to end of hole |
| 28 | 66 | 38 | 23.5 | ||
| 28 | 32 | 4 | 90.7 | ||
| 28 | 29 | 1 | 301.0 | ||
| 47 | 51 | 4 | 68.0 | ||
| 48 | 49 | 1 | 207.0 | ||
| 55 | 56 | 1 | 93.3 | ||
| 64 | 65 | 1 | 61.2 | ||
| 88 | 89 | 1 | 26.2 | ||
| GAC127 includes includes includes |
36 | 120 | 84 | 1.9 | Broad silver zone to end of hole |
| 58 | 59 | 1 | 6.8 | ||
| 84 | 85 | 1 | 36.7 | ||
| 95 | 96 | 1 | 13.8 | ||
| GAC128 includes includes |
41 | 114 | 73 | 1.4 | Broad silver zone to end of hole |
| 74 | 80 | 6 | 6.0 | ||
| 74 | 75 | 1 | 17.3 |
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TABLE 4: Significant Copper intercepts (GAC104 – GAC128)
| Hole ID | From (m) |
To (m) |
Interval (m) |
Copper (%) |
Comments |
|---|---|---|---|---|---|
| GAC113 | 45 | 49 | 4 | 0.1 | |
| GAC122 | 49 | 50 | 1 | 0.1 |
TABLE 5: Significant Lead intercepts (GAC104 – GAC128)
| Hole ID | From (m) |
To (m) |
Interval (m) |
Lead (%) |
Comments |
|---|---|---|---|---|---|
| GAC120 and |
61 | 62 | 1 | 0.1 | |
| 76 | 77 | 1 | 0.1 | ||
| GAC123 and |
54 | 55 | 1 | 0.1 | |
| 82 | 83 | 1 | 0.2 | ||
| GAC127 | 85 | 86 | 1 | 0.1 |
TABLE 6: Significant Zinc intercepts (GAC104 – GAC128)
| Hole ID | From (m) |
To (m) |
Interval (m) |
Zinc (%) |
Comments |
|---|---|---|---|---|---|
| GAC115 | 89 | 90 | 1 | 0.1 | |
| GAC117 and |
61 | 62 | 1 | 0.1 | |
| 81 | 82 | 1 | 0.2 | ||
| GAC120 and |
61 | 62 | 1 | 0.1 | |
| 75 | 77 | 2 | 0.1 | ||
| GAC123 and |
54 | 55 | 1 | 0.1 | |
| 82 | 83 | 1 | 0.3 | ||
| GAC126 | 88 | 89 | 1 | 0.1 | |
| GAC127 and and and |
68 | 69 | 1 | 0.2 | |
| 75 | 76 | 1 | 0.1 | ||
| 81 | 86 | 5 | 0.1 | ||
| 95 | 96 | 1 | 0.1 |
This announcement has been approved for release by the Board of Directors of Navarre Minerals Limited.
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For further information, please visit www.navarre.com.au or contact:
Ian Holland Managing Director Navarre Minerals E: [email protected] T: +61 (0)3 5358 8625
COMPETENT PERSON DECLARATION
The information in this release that relates to Exploration Targets, Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Shane Mele, who is a Member of The Australasian Institute of Mining and Metallurgy and who is Exploration Manager of Navarre Minerals Limited. Mr Mele 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 Mele consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.
REPORTING OF HISTORIC GLENLYLE EXPLORATION RESULTS
Although Navarre was not involved in previous exploration on the Glenlyle tenement, it has elected to update the information about drill hole GRC05, shown in Figure 4, to comply with the JORC 2012 Code to demonstrate the existence of a significant anomalous silver zone that has been subsequently confirmed by Navarre’s drilling. The results of GRC05 were first reported by P.S. Forwood, J.A. Forwood and Chivelle Pty Ltd in an annual technical report to the Victorian Government titled “EL 4621, Glenlyle Project, Victoria, Fifth Annual Technical Report for the period 1 April 2006 to 31 March 2007.” The report is now open file and accessible to the public. Navarre has limited knowledge on how the data was collected and has had to make assumptions based on historical data generated by the previous explorer.
FORWARD-LOOKING STATEMENTS
This announcement contains “forward-looking statements” within the meaning of securities laws of applicable jurisdictions. Forward-looking statements can generally be identified by the use of forward-looking words such as “may”, “will”, “expect”, “intend”, “plan”, “estimate”, “anticipate”, “believe”, “continue”, “objectives”, “outlook”, “guidance” or other similar words, and include statements regarding certain plans, strategies and objectives of management and expected financial performance. These forward-looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside the control of Navarre and any of its officers, employees, agents or associates. Actual results, performance or achievements may vary materially from any projections and forward-looking statements and the assumptions on which those statements are based. Exploration potential is conceptual in nature, there has been insufficient exploration to define a Mineral Resource and it is uncertain if further exploration will result in the determination of a Mineral Resource. Readers are cautioned not to place undue reliance on forward-looking statements and Navarre assumes no obligation to update such information.
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ABOUT NAVARRE MINERALS LIMITED:
Navarre Minerals Limited (ASX: NML) is an Australian-based gold exploration company focused on discovering large, long-life and high-grade gold deposits in under-explored areas of Victoria’s premier gold districts.
Navarre is searching for gold deposits in an extension of a corridor of rocks that host the Stawell (~six million ounce) and Ararat (~one million ounce) goldfields ( The Stawell Corridor Gold Project ). The discovery of outcropping gold on the margins of the Irvine basalt dome (Resolution and Adventure lodes) and high-grade gold in shallow drilling at Langi Logan are a prime focus for the Company. These projects are located 20 and 40 kilometres respectively south of the operating five million ounce Stawell Gold Mine.
The high-grade Tandarra Gold Project is located 50km northwest of Kirkland Lake Gold’s world-class Fosterville Gold Mine, and 40 kilometres north of the 22 million ounce Bendigo Goldfield. Exploration at Tandarra, in Joint Venture with Catalyst Metals Limited (Navarre 49%), is targeting the next generation of gold deposits under shallow cover in the region.
The Company is searching for a high-grade gold at its St Arnaud Gold Project. Recent reconnaissance drilling has identified gold mineralisation under shallow cover, up to 5 kilometres north from the nearest historical mine workings, which the Company believes may be an extension of the 400,000 ounce St Arnaud Goldfield.
At the Jubilee Gold Project, 25km southwest of LionGold’s Ballarat Gold Mine, the Company is undertaking a systematic exploration program targeting extensions and repetitions of historically mined transverse quartz reefs that have a similar structural setting to the high-grade Swan – Eagle system at Fosterville.
The Company is also targeting volcanic massive sulphide, epithermal and porphyry copper-gold deposits in the Stavely Arc volcanics. The project area captures multiple polymetallic targets in three project areas including Glenlyle, Eclipse and Stavely . These properties are currently 100% owned apart from Stavely (EL 5425) which is subject to a farm-in agreement by which Stavely Minerals Limited may earn an 80% interest by spending $450,000 over five years.
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Appendix 1
JORC Code, 2012 Edition – Table 1
Section 1: Sampling Techniques and Data
| Criteria | JORC Code explanation | JORC Code explanation |
|---|---|---|
| Sampling techniques |
• Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate 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. • 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 (e.g. ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30g 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 (e.g. submarine nodules) may warrant disclosure of detailed information. |
• All air-core (AC) drill holes have been routinely sampled at 1m intervals downhole directly from a rig mounted cyclone. Each metre is collected and placed on a plastic sheet on the ground and preserved for assay sub-sampling analysis as required. • Sub-samples for assaying were generated from the 1m preserved samples and were prepared at the drill site by a grab sampling method based on logged geology and mineralisation intervals. Sub-samples were taken at 1m intervals or as composites ranging from 2-5m intervals ensuring a sample weight of between 2 to 3 kg per sub-sample. • Certified reference material and sample duplicates were inserted at regular intervals with laboratory sample submissions. |
| Drilling techniques |
• Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc). |
• AC drilling was carried out using a Wallis Mantis 80 AC rig mounted on a Toyota Landcruiser base. The AC rig used a 3.5” blade bit to refusal, generally just below the fresh rock interface. |
| Drill sample recovery |
• Method of recording and assessing core and chip sample recoveries and results assessed. • Measures taken to maximise sample recovery and ensure representative nature of the samples. • Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. |
• AC drill recoveries were visually estimated as a semi- quantitative range and recorded in the log. • Recoveries were generally high (>90%), with reduced recovery in the initial near-surface sample. • Samples were generally dry, but many became wet at the point of refusal in hard ground below the water table. • No sampling issue, recovery issue or bias was picked up and is considered that both sample recovery and |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| quality is adequate for the drilling technique employed. |
||
| Logging | • Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. • Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. • The total length and percentage of the relevant intersections logged. |
• Geological logging of samples follows Company and industry common practice. Qualitative logging of samples includes (but was not limited to); lithology, mineralogy, alteration, veining and weathering. • All logging is quantitative, based on visual field estimates. • A small representative sample was retained in a plastic chip tray for future reference and logging checks. • Detailed chip logging, with digital capture, was conducted for 100% of chips logged by Navarre’s geological team. |
| Sub-sampling techniques and sample preparation |
• If core, whether cut or sawn and whether quarter, half or all core 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. • Quality control procedures adopted for all sub- sampling stages to maximise representivity of samples. • Measures taken to ensure that the sampling is representative of the in-situ material collected, including for instance results for field duplicate/second-half sampling. • Whether sample sizes are appropriate to the grain size of the material being sampled. |
• Company procedures were followed to ensure sub- sampling adequacy and consistency. These included (but were not limited to), daily workplace inspections of sampling equipment and practices. • Blanks and certified reference materials are submitted with the samples to the laboratory as part of the quality control procedures. • AC composite, 1m individual and EOH samples were collected as grab samples. • Samples were recorded as dry, damp or wet. • Drill sample preparation and base metal and precious metal analysis is undertaken by a registered laboratory (ALS Perth, WA). Sample preparation by dry pulverisation to 85% passing 75 microns is undertaken by ALS Adelaide, SA. • The sample sizes are considered appropriate to correctly give an accurate indication of mineralisation given the qualitative nature of the technique and the style of gold mineralisation sought. |
| Quality of assay data and laboratory tests |
• The nature, quality and appropriateness of the assaying and 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 |
• Analysis for gold is undertaken at ALS Perth, WA by 50g Fire Assay with an AAS finish to a lower detection limit of 0.01ppm Au using ALS technique Au-AA26. • ALS also conducted a 35 element Aqua Regia ICP- AES (method: ME-ICP41) analysis on each sample to assist interpretation of pathfinder elements. |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| applied and their derivation, etc. • Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established. |
• No field non-assay analysis instruments were used in the analyses reported. • A review of certified reference material and sample blanks inserted by the Company indicate no significant analytical bias or preparation errors in the reported analysis • Internal laboratory QAQC checks are reported by the laboratory and a review of the QAQC reports suggests the laboratory is performing within acceptable limits. |
|
| Verification of sampling and assaying |
• The verification of significant intersections by either independent or alternative company personnel. • The use of twinned holes. • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. • Discuss any adjustment to assay data. |
• Samples are verified by Navarre geologists before importing into the drill hole database. • No twin holes have been drilled by Navarre during this program. • Primary data was collected for drill holes using a Geobase logging template on a Panasonic Toughbook laptop using lookup codes. The information was sent to a database consultant for validation and compilation into a SQL database. • Reported drill results were compiled by the Company’s geologists and verified by the Exploration Manager and Managing Director. • No adjustments to assay data were made. |
| Location of data points |
• Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation. • Specification of the grid system used. • Quality and adequacy of topographic control. |
• All maps and locations are in UTM Grid (GDA94 zone 54). • All drill collars are initially measured by hand-held GPS with an accuracy of+3 metres. On completion of program, a contract surveyor picks-up collar positions utilising a differential GPS system to an accuracy of+0.02m. • At Glenlyle, topographic control is achieved via use of a DTM developed from a 2008 ground gravity survey measuring relative height using radar techniques. • Down-hole surveys have not been undertaken |
| Data spacing and distribution |
• Data spacing for reporting of Exploration Results. • 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. • Whether sample compositing has been applied. |
• Variable drill hole spacings are used to adequately test targets and are determined from geochemical, geophysical and geological data together with historic mining information. • Drilling reported in this program is of an early exploration nature and has not been used to estimate any mineral resource or ore reserves. |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| • Refer to sampling techniques, above for sample compositing |
||
| Orientation of data in relation to geological structure |
• Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering 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. |
• Exploration is at an early stage and, as such, knowledge on exact location of mineralisation, in relation to lithological and structural boundaries, is not accurately known. • The drill orientation is attempting to drill perpendicular to the geology and mineralised trends previously identified from earlier AC drilling. Due to the early stage of exploration it is unknown if the drill orientation has introduced any sampling bias. This will become more apparent as further drilling is completed. |
| Sample security | • The measures taken to ensure sample security. |
• Chain of custody is managed by internal staff. Drill samples are stored on site and transported by a licenced reputable transport company to a registered laboratory in Perth, WA (ALS Laboratories). At the laboratory samples are stored in a locked yard before being processed and tracked through preparation and analysis. |
| Audits or reviews | • The results of any audits or reviews of sampling techniques and data. |
• There has been no external audit or review of the Company’s sampling techniques or data at this stage. |
Section 2 Reporting of Exploration Results
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral tenement and land tenure status |
• Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. • The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. |
• The Morning Bill prospect is located within Navarre’s 100% owned “Glenlyle” exploration licence EL 5497 which was granted on 9 September 2014 for an initial period of 5 years. • The tenement is current and in good standing. • The prospect occurs on freehold land. |
| Exploration done by other parties |
• Acknowledgment and appraisal of exploration by other parties. |
• Past exploration has identified the Glenlyle target as a potential intrusive complex like Thursdays Gossan. Most recent work was completed from 2002-2008 where a range of geophysical techniques (Ground magnetics, IP and trial EM) identified several targets for testing by five RC drill holes. • Recent structural interpretation by the Geological Surveyof Victoria indicates the Dryden and Stavely |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| volcanic belts as being the same geological unit. | ||
| Geology | • Deposit type, geological setting and style of mineralisation. |
• The project area is considered prospective for Epithermal/Porphyry style mineralisation akin to Thursdays Gossan within the Dryden – Stavely Volcanic Belt. |
| Drill hole Information |
• A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill hole collaro elevation or RL (Reduced Level – elevationabove sea level in metres) of the drill hole collar o dip and azimuth of the holeo down hole length and interception deptho 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. |
• Reported results are summarised in Figures 2 and 3 and Tables 1 – 6 within the main body of the announcement. • Drill collar elevation is defined as height above sea level in metres (RL) • Drill holes were drilled at an angle deemed appropriate to the local structure and is tabulated in Table 1. • Hole length of each drill hole is the distance from the surface to the end of hole, as measured along the drill trace. |
| Data aggregation methods |
• In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. cutting of high grades) and cut-off grades are usually Material and should be stated. • Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. • The assumptions used for any reporting of metal equivalent values should be clearly stated. |
• All reported assays have been average weighted according to sample interval. • No top cuts have been applied. • An average nominal 0.3g/t Au and 0.3/t Ag lower cut- off is reported as being potentially significant in the context of this drill program. • No metal equivalent reporting is used or applied. |
| Relationship between mineralisation widths and intercept lengths |
• These relationships are particularly important in the reporting of Exploration Results. • If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. • If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (e.g. ‘down hole length, true width not _known’). _ |
• The exact geometry and extent of any primary mineralisation is not known at present due to the early stage of exploration. • Mineralisation results are reported as “down hole” intervals as true widths are not yet known. |
| 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. |
• Refer to diagrams in body of text. |
| Balanced reporting | • Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. |
• All drill hole results received have been reported in this announcement. • No holes are omitted for which complete results have been received. |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Other substantive exploration data |
• Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances. |
• All relevant exploration data is shown in diagrams and discussed in text. |
| Further work | • The nature and scale of planned further work (e.g. tests for lateral extensions or depth extensions or large-scale step-out drilling). • Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive. |
• Areas of positive AC drill results are expected to be followed up with infill and expansion AC and/ or diamond drilling programs. |
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