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The lithologies exposed in the mine workings comprise slaty phyllites, arkoses, greywackes and jaspilite ironstone bands.
The mineralisation being targeted is similar to that of the Middleback iron deposits where pods of hematite between 500 to 1000m long occur discontinuously adjacent to the Middleback jaspilite, within the hinge zones of synclines.
The project geology comprises calcareous and ferruginous siltstone, shales, phyllite, metavolcanics and jaspilite rocks of the Overhang Jaspilite unit of the Mid Proterozoic Mary Kathleen Group.