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Location: 50 km SE from Kambalda, Western Australia, Australia
20 Walters Drive, Osborne ParkPerthWestern Australia, Australia6017
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MinRes holds a 100% interest in Bald Hill mine through its wholly-owned subsidiary Bald Hill Lithium Pty Ltd.
The Bald Hill area is underlain by generally north-striking, steeply dipping Archaean metasediments (schists and greywackes) and granitoids.Felsic porphyries and pegmatite sheets and veins have intruded the Archaean rocks. Generally, the pegmatites crosscut the regional foliation, occurring as gently dipping sheets and as steeply dipping veins.The pegmatites vary in width and are generally comprised quartz-albite-muscovite-spodumene in varying amounts. Late-stage albitisation in the central part of the main outcrop area has resulted in fine- grained, banded, sugary pegmatites with visible fine-grained, disseminated tantalite. A thin hornfels characterised by needle hornblende crystals is often observed in adjacent country rocks to the pegmatite intrusives. Tantalite generally occurs as fine disseminated crystals commonly associated with fine-grained albite zones, or as coarse crystals associated with cleavelandite. Weathering of the pegmatites yields secondary mineralised accumulations in alluvial/eluvial deposits.The Bald Hill Mineral Resource comprises one large, main, sub-horizontal pegmatite body, striking north-south, with a strike length of 1,070m, and a width at its widest point of 775m. This main body is surrounded by several smaller discrete pegmaOte bodies, sub-parallel to the main, which result in a total strike length for the whole resource of 1,245m, and a total width of 990m. The Mineral Resource has a total vertical depth of 195m, beginning 20m below the natural surface and plunging gently to the south along its entire strike length.
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