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The MinEx CRC National NDI Campaign currently underway in the Delamerian Orogen in collaboration with Department for Energy and Mining, South Australia is utilising both Coil Tube drilling and conventional Diamond drilling.
Whilst our first conventional drillhole (NDIAW_D01) was hydrothermally-altered in places, with pervasive hematitic alteration of the host granite and chlorite-sericite veining, our second (NDIAW_D02) has shown significant alteration.
This most-recent drillhole showed a similar granitic host to the first hole, with an upper silicified interval, then intense K-Feldspar alteration widely overprinted by epidote, chlorite and sericite.
Hydrothermal brecciation and chlorite and carbonate veining of several generations is present, with pyrite and minor chalcopyrite associated with chlorite selvadges.
This drillhole is interpreted to lie adjacent to intersections of two major structures in the south of our Alawoona NDI area.