File(s) under permanent embargo
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
conference contribution
posted on 2023-05-23, 14:35 authored by Duncan, R, Taylor, D, Sebastien MeffreSebastien Meffre, Ivan BelousovIvan Belousov, Leonid Danyushevsky, David CookeDavid CookeEpidote 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.
History
Publication title
Proceedings of the 15th SGA Biennial Meeting: Life with Ore Deposits on Earth, volume 3Pagination
1374-1377ISBN
9780852619643Department/School
School of Natural SciencesPublisher
University of Glasgow Publicity ServicesPlace of publication
Glasgow, ScotlandEvent title
15th SGA Biennial MeetingEvent Venue
Glasgow, ScotlandDate of Event (Start Date)
2019-08-27Date of Event (End Date)
2019-08-30Rights statement
Copyright 2019 Society for Geology Applied to Mineral Deposits (SGA)Repository Status
- Restricted