Geological controls on the distribution of arsenic in the Perseverance nickel deposit, Leinster, WA
Access Status
Open access
Authors
Diragitch, Alexandre Albiero
Date
2014Supervisor
Dr Belinda Godel
Dr Katy Evans
Type
Thesis
Award
MPhil
Metadata
Show full item recordSchool
Western Australian School of Mines, Department of Applied Geology
Collection
Abstract
The Perseverance deposit is a deformed ultramafic disseminated Ni-sulphide orebody. Arsenic is found in gersdorffite (NiAsS) and cobaltite (CoAsS). Arsenic-bearing minerals occur within massive sulphide and altered ultramafic disseminated sulphide rocks located at the base of the ultramafic complex. Cobaltite crystallisation temperature ranges from 500°C-550°C while gersdorffite ranges from 250°C-550°C. Arsenic addition occurred prior to regional metamorphism (500 - 550°C) but the arsenic source is obscured by subsequent metamorphic and metasomatic events.
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