{"id":1004,"date":"2023-11-26T21:09:19","date_gmt":"2023-11-26T13:09:19","guid":{"rendered":"https:\/\/www.petratherm.com.au\/?page_id=1004"},"modified":"2023-11-26T21:10:46","modified_gmt":"2023-11-26T13:10:46","slug":"comet-gold-project","status":"publish","type":"page","link":"https:\/\/www.petratherm.com.au\/comet-gold-project\/","title":{"rendered":"Comet Gold Project"},"content":{"rendered":"\n
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Projects<\/h2>\n\n\n\n
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Comet<\/strong>
Gold Project<\/h1>\n<\/div><\/div>\n\n\n\n
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The Comet Project (EL6443, EL6633, EL6722, EL6816 & EL6818), totalling 1,915km2<\/sup>, contains prospective Archean strata of the Northern Gawler Craton which hosts numerous gold occurrences such as the Challenger gold deposit (1.1 Moz @ 5.1g\/t) and is located 30 km east from the recent high-grade Aurora Tank Gold discovery (Figure 1).<\/p>\n\n\n\n

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The tenement includes the Comet Gold Prospect, where limited RC drilling identified a continuous zone of gold intersections, over at least 150 metres of strike, and remains open to the north, south and at depth (Figure 2). Best historical drill intercepts (not true width; refer to PTR ASX release 18\/10\/19 for historical drilling details) include:<\/p>\n\n\n\n

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  • CM023C<\/strong> \u2013 12m @ 1.0 g\/t Au from 56m to then end of hole<\/li>\n\n\n\n
  • CM030C<\/strong> \u2013 28m @ 0.4 g\/t Au from 48m<\/li>\n\n\n\n
  • RCCM1<\/strong> \u2013 16m @ 1.9 g\/t Au from 28m and 8m @ 0.7 g\/t Au from 48m
    Inc. 2m @ 6.17 g\/t Au from 30m<\/li>\n\n\n\n
  • RCCM5<\/strong> \u2013 4m @ 3.75 g\/t Au from 36m
    Inc. 1m @ 6.97 g\/t Au from 39m<\/li>\n\n\n\n
  • RCCM7<\/strong> \u2013 12m @ 0.53 g\/t Au from 72m
    Inc. 1m @ 4.6 g\/t Au from 82 m<\/li>\n<\/ul>\n\n\n\n
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    Figure 1 Regional Location Map of Petratherm\u2019s Comet Project (comprising EL6443, EL6633, EL6722, EL6816 & EL6818) and gold occurrences overlain on a regional aeromagnetic image<\/figcaption><\/figure><\/div>\n\n\n
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    Figure 2 Comet Drill Collar Map. Historical anomalous gold intercepts (red lines) projected to surface. Gold intercepts occur over a strike length in excess of 150 metres and is open to the north, south and at depth.<\/figcaption><\/figure><\/div>\n\n\n
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    Regional Exploration<\/h2>\n\n\n\n

    Historical surface geochemical sampling exploration techniques in the region have been impeded by shallow cover strata which masks most of the prospective basement rock geochemical response. To overcome this issue Petratherm has applied a new exploration methodology, where regional scale shallow grid drilling is being undertaken over the tenements to directly sample the top of the in-situ \u201csaprolite\u201d zone clays (deeply weathered basement rock which has been chemically decomposed to clay) below younger transported cover strata (refer to PTR ASX release 28\/05\/21 for program background). In most areas the top of saprolite zone occurs between 5 and 15 metres depth and shallow drilling is being undertaken using a light weight and cost-effective land cruiser mounted air core drill rig.<\/p>\n\n\n\n

    In November 2021, results released from the ongoing regional shallow RAB drilling activities defined several gold anomalous areas and subsequent follow-up infill drilling has upgraded and expanded two gold anomalies. At Target 14 Prospect initial reconnaissance style drilling identified a mineralised gold envelope within weathered basement and is open in multiple directions and at depth. Follow up additional shallow RAB sampling at \u201cAnomaly A\u201d has confirmed highly anomalous gold and is open in multiple directions (Figure 1).<\/p>\n\n\n\n

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    Regional RAB Drilling Operations at Comet.<\/figcaption><\/figure><\/div>\n\n\n
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    Target 14<\/h2>\n\n\n\n

    At Target 14, 18 angled air core \/ RC drill holes for a total of 1,061 metres were completed in December 2021. Average hole depth was 60 metres (down hole), with holes at an 80-metre spacing. The prospect is blanketed by 10 to 20 metres of transported cover sediment, before passing into the weathered basement saprolitic profile, with fresher basement rock starting from approximately 40 metres down hole depth. A widespread anomalous gold blanket has been defined across the drill area.<\/p>\n\n\n\n

    Drill hole 21T14RC05 located on the northern edge of the grid returned the highest level of gold anomalism recording:<\/p>\n\n\n\n

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    • 20 metres @ 0.13 g\/t Au from 16 to 36 metres (down hole)<\/li>\n<\/ul>\n\n\n\n

      The drill intersection forms part of a broader zoned system, which is open to the north-northeast, and at depth to the south-southwest. Figures 2 and 3 show a 3D modelling of Target 14 drilling with transparent gold iso-surfaces used to highlight the blanket of gold anomalism in the saprolite. Figures 3 & 4 show a zoned gold anomalism exists providing a vector towards better mineralisation. An outer yellow shell being between 10-15 ppb Au and the second deeper gold shell ranging from 50 to 100 ppb Au is displayed. Additional follow up holes are planned to evaluate if the gold zone encountered marks the edge of potentially more significant mineralisation.<\/p>\n\n\n\n

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      Figure 3 3D model of gold shells in saprolite at Target 14 looking north.<\/figcaption><\/figure><\/div>\n\n\n
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      Figure 4 3D model of gold shells at Target 14 looking east<\/figcaption><\/figure><\/div>\n\n\n
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      Drilling at Target 14 Gold Prospect, December 2021<\/figcaption><\/figure><\/div>\n\n\n
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      Anomaly A<\/h2>\n\n\n\n

      The gold in saprolite anomaly, referred to as \u201cAnomaly A\u201d is shown in Figure 5. In December shallow vertical RAB Infill drilling was completed on a 100-metre spaced grid around the single point gold anomaly (original sample returned 3 metres @17 ppb Au from 18-21 metres) as part of a much larger regional and infill sampling program. The infill RAB sampling has both upgraded and expanded the anomaly returning sample results of:<\/p>\n\n\n\n

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      • Drill Hole 737 \u2013 3 metres @ 23 ppb Au, from 24 metres<\/li>\n\n\n\n
      • Drill Hole 738 \u2013 4 metres @ 23 ppb Au, from 23 metres<\/li>\n\n\n\n
      • Drill Hole 733 \u2013 8 metres @ 9.5 ppb Au, from 21 metres<\/li>\n\n\n\n
      • Drill Hole 736 \u2013 3 metres @ 9 ppb Au, from 18 metres<\/li>\n<\/ul>\n\n\n\n

        The multi-point anomaly is coherent, extends over 200 metres and is open along trend. Additional shallow RAB sampling will now be undertaken to map the extent of this anomaly before drill testing. Significant gold occurrences in the region such as the Challenger gold deposit (1.1 Moz @ 5.1g\/t) and the recent high-grade Aurora Tank Gold discovery (Figure 1), form discrete, steeply inclined gold shoots. The near surface gold dispersion haloes preserved in the weathered basement at the top of these shoots typically have a small surrounding footprint (i.e. Figure 6). The anomalies encountered at both Target 14 and Anomaly A are consistent with this style of mineralisation and further drill test work is warranted.<\/p>\n\n\n\n

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        Figure 5 Gold in Saprolite Anomaly on EL 6633 \u201cAnomaly A\u201d<\/figcaption><\/figure><\/div>\n\n\n
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        Figure 6 Challenger Gold drillhole cross-section 3475E (source MESA Journal 4, Jan 1997). Section highlights discrete gold in saprolite halo surrounding primary steeply inclined gold shoot.<\/figcaption><\/figure><\/div>\n\n\n
        <\/div>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/blocks.php","meta":{"_acf_changed":false,"inline_featured_image":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":"","_links_to":"","_links_to_target":""},"acf":[],"yoast_head":"\nComet Gold Project - Petratherm Limited<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.petratherm.com.au\/comet-gold-project\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comet Gold Project - 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