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It's not easy being green - detecting arc-related mineral system fingerprints using mineral chemistry in 'propylitic alteration' in a Cambrian arc terrane Victoria, Australia

Citation

Duncan, R and Taylor, D and Meffre, S and Belousov, I and Danyushevsky, L and Cooke, D, It's not easy being green - detecting arc-related mineral system fingerprints using mineral chemistry in 'propylitic alteration' in a Cambrian arc terrane Victoria, Australia, Proceedings of the 15th SGA Biennial Meeting: Life with Ore Deposits on Earth, volume 3, 27-30 August 2019, Glasgow, Scotland, pp. 1374-1277. ISBN 9780852619643 (2019) [Refereed Conference Paper]

Copyright Statement

Copyright 2019 Society for Geology Applied to Mineral Deposits (SGA)

Official URL: https://www.sga2019glasgow.com/abstract

Abstract

Epidote and chlorite compositional data were collected using laser ablation inductively-eoupled mass spectrometry (ICP-MS) on samples from two mineral prospects in the Cambrian Stavely Arc, western Victoria. The aim was to distinguish between regional metamorphic and hydrothermal alteration origins for epidote-chlorite-bearing assemblages. At the Thursday's Gossan Porphyry Cu(-Au-Ag) Prospect, chlorite signatures are similar to both propy1itic hydrothermal and regional metamorphic origins, however, elevated Zn and Sr contents are associated with the former. Application of the chlorite proximitors (predicted distance to a hydrothermal centre) identify a likely hydrothermal centre at depth. At the Eclipse Cu-Zn(-Au) VHMS Prospect, epidote As and Sb and chlorite Zn, Cu and Pb contents are consistent with propylitic alteration in most samples. Systematic variations in chlorite Cu and Pb and As and Cu in epidote contents identify a portion of the prospect for follow-up exploration. This study demonstrates that even a limited epidote-chlorite mineral chemistry dataset can provide fertility and vectoring information for mineral exploration targeting. These data are consistent largerscale geochemical data and geodynamic models that predict the Stavely Arc has significant arc-related mineral system potential.

Item Details

Item Type:Refereed Conference Paper
Research Division:Earth Sciences
Research Group:Geochemistry
Research Field:Exploration Geochemistry
Objective Division:Mineral Resources (excl. Energy Resources)
Objective Group:Other Mineral Resources (excl. Energy Resources)
Objective Field:Mineral Resources (excl. Energy Resources) not elsewhere classified
UTAS Author:Meffre, S (Dr Sebastien Meffre)
UTAS Author:Belousov, I (Dr Ivan Belousov)
UTAS Author:Danyushevsky, L (Professor Leonid Danyushevsky)
UTAS Author:Cooke, D (Professor David Cooke)
ID Code:138755
Year Published:2019
Deposited By:CODES ARC
Deposited On:2020-04-28
Last Modified:2020-05-04
Downloads:0

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