Mineral potential of the Riwaka Complex, Northwest Nelson, New Zealand

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SR_2012-026-pdf
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Christie, A.B.; Turnbull, R.E.; Lukovic, B.; Leybourne, M.I. 2012 Mineral potential of the Riwaka Complex, Northwest Nelson, New Zealand. Lower Hutt, N.Z.: GNS Science. GNS Science report 2012/26 [78] p. + 1 CD

Abstract: The Riwaka Complex is an elongate mafic-ultramafic intrusive body, about 50 km long and up to 6 km wide, that is partly disrupted by faults. Its intrusion age is late Devonian (366 Ma) and it is dominated by pyroxene, olivine and hornblende-rich mafic and ultramafic units. In the 1970s, exploration for Ni-Cu included stream sediment, rock chip and soil geochemical sampling, ground magnetic surveys and drilling of 33 shallow (