ANTIPA MINERALS LIMITED Calibre Deposit
Drilling at Calibre extended the gold copper mineralisation beyond the southern limits of the existing 2.1Moz gold, 104kt copper and 1.3Moz silver Mineral Resource by up to 100m to the west and east, and beneath the southern region of the resource by up to 150m. The Calibre mineralisation model is under revision and may inform an updated Mineral Resource estimate. Appraisal work in respect of conceptual Calibre project development options is ongoing, including geotechnical drilling and metallurgical test work
Rimfire
Area The Rimfire intrusion has developed a very large scale precious and base metal mineral system which extends across an area of up to 6 km in diameter located approximately 25km southeast of Rio Tinto's Winu copper gold silver deposit. Exploration is seeking to discover and define higher grade mineralisation within this broad system. The 2021 Rimfire greenfield drill programme largely targeted areas with anomalous magnetic signatures and gold copper mineralisation from the 2020 reverse circulation (RC) drilling. Assays have been received for all fifteen RC drill holes and allsix diamond core drill holes completed at the Rimfire area in 2021. Widely spaced (200 to 1,000m), commonly vertical drill holes at Rimfire have identified two zones for follow up drilling (Sundance and Hangfire), which have demonstrated significant gold copper silver+/-tungsten mineralisation 4.4km apart and open in all directions.
Mineralisation at the Sundance target appearsto be related to a possible domal magnetic feature which extends across 1.5km at Rimfire northeast. Mineralisation at the Hangfire target appears to be related to a possible folded magnetic feature which extends across 500m at Rimfire southeast. Sulphide rich breccia style mineralisation intersected during 2021 had not been detected by aerial electromagnetic (AEM) surveys over the area. In addition, large regions of magnetic anomalies at Rimfire, including many under shallow cover of less than 30m, remain untested. The 2021 drill results highlight the exploration potential for a material discovery under shallow cover, and so to enhance drill targeting a detailed Rimfire aerial magnetic survey was completed last year, and ground EM surveys are being considered for CY2022.
Magnum North
Two diamond core (DD) holes were completed at Magnum North testing for strike extensions to the Magnum gold copper silver Mineral Resource. Significant mineralisation was intersected 200m and 800m north of the resource by drill holes MGNN0001 and MGNN0003 respectively; follow up drilling is planned for CY2022.
Other Greenfield Targets
At the Hansel target drill hole HASL0002 returned a narrow intersection of 0.3m at 1.57 g/t gold and 1.58 g/t silver from 116.9m down hole. At the Trigger target drill hole TRGR0004 did not return any significant gold copper intersections. No follow up exploration is currently planned for these targets.
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