Hydrothermal footprints of magmatic nickel sulfide deposits
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The role of arsenic has been highlighted as a carrier within hydrothermal fluids.
Under specific conditions, such as the presence of arsenic, hydrothermal fluids have the potential to remobilise Ni, Co and PGE, and produce a detectable halo around massive nickel sulfides. This halo can be detected using portable XRF analysers highlighting anomalous Ni and As concentrations, with low potential for false positive findings.
A protocol on the use and calibration of XRF for analyses on drill core was developed, making this new found geochemical exploration tool readily applicable in the core yard.
Page was last reviewed 16 July 2020