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Other Projects

Other Projects


Oar have interpreted that the geology on Eyre Peninsula is favourable for hosting deposits of Archaean age: VHMS (“volcanogenic massive sulphide”) deposits containing zinc-copper (± lead) and nickel-copper sulphide deposits as well as structurally controlled zinc, copper and lead deposits.


Previous drilling has intersected a volcanic terrane ranging from komatiitic-basaltic-felsic composition interbedded with fine grained meta-sediments. The age of these rocks has been verified by Oar with lead isotope radioactive dating as 2540 (Ma) age.


The Malache base metal project is within the south-east portion of tenement EL4537. Drill hole BLDD004 intercepted 19.2m at 1.8% zinc and 0.9% lead, plus 3.1m at 4.9% zinc further down the hole.


The exploration targets are similar to those in the Yilgarn and Pilbara Shields of Western Australia and the Canadian Shield. VHMS deposits containing zinc-copper (± lead) characteristically contain silver, gold and other metals occasionally recoverable as biproducts.


The structurally controlled base metal mineralisation at Malache contains gallium, germanium and indium as well as the principal metals. The Oar sequence is a package of meta- mafic volcanics, altered felsic volcanics, komatiites, graphitic schist, graphite-bearing feldspathic gneiss, sillimanite gneiss and various calc-silicates metamorphosed to the lower granulite facies.


Hopping Jack Well Prospect – Base Metals and Uranium


It is known that the Oar Sequence is also present ~10km to the south-south-west where Stockdale intersected anomalous base metals in iron-rich meta-pelites/felsic volcanics (anomaly MH36; 14 m grading 0.25% zinc and 0.1% lead) near the Hopping Jack Well Prospect.


Air core drilling by Oar in 2011 located the Hopping Jack Well Prospect base metal mineralisation in a parallel major north-west trending shear system. Base metal values of up to 1.6% combined lead and zinc were assayed at the base of the air core holes. The system is open in all directions.


Diamond drill hole (KADD02) at Hopping Jack Well, designed to test the base metal target also intersected 10 m of uranium mineralisation in thin veins associated with an oxidised hematite breccias, with uranium values of up to 700 ppm.


Gibraltar Halloysite-Kaolin Project

The Gibraltar Project is located to the north and adjacent to Andromeda Metals’ Ltd (ASX: ADN) Mt Hope Kaolin-Halloysite Project on the Eyre Peninsula.


OAR reported exceptionally high-grade Halloysite results from drilling at the Gibraltar Project in 2021. Individual grades as high as 53% halloysite were returned from one composite sample. This was amongst the highest grade halloysite to be reported in the area. This result combined with multiple other holes, which returned samples grading in excess of 30% halloysite confirmed the discovery of a new, high-grade halloysite project at Gibraltar.


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