Continental-scale geochemical surveys and mineral prospectivity: comparison of a trivariate and a multivariate approach  


Authors / CoAuthors

de Caritat, P.

Abstract

The National Geochemical Survey of Australia (NGSA) provides an internally consistent, state-of-the-art, continental-scale geochemical dataset that can be used to assess areas of Australia more elevated in commodity metals and/or pathfinder elements than others. But do regions elevated in such elements correspond to known mineralized provinces, and what is the best method for detecting and thus potentially predicting those? Here, using base metal associations as an example, I compare a trivariate rank-based index and a multivariate-based Principal Component Analysis method. The analysis suggests that the simpler rank-based index better discriminates catchments endowed with known base metal mineralization from barren ones and could be used as a first-pass prospectivity tool. <b>Citation:</b> Patrice de Caritat, Continental-scale geochemical surveys and mineral prospectivity: Comparison of a trivariate and a multivariate approach, <i>Journal of Geochemical Exploration</i>, Volume 188, 2018, Pages 87-94, ISSN 0375-6742, https://doi.org/10.1016/j.gexplo.2018.01.014

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document

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110381

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Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES
  • Mineral exploration
  • Prospectivity Analysis
  • Regolith
  • National Geochemical Survey of Australia
  • Base Metals
  • Published_External

Publication Date

2023-10-26T04:18:40

Creation Date

2017-04-28T00:00:00

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Australian Government Security ClassificationSystem    

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Creative Commons Attribution 4.0 International Licence    

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completed

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Submission to Journal of Geochemical Exploration

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geoscientificInformation

Series Information

Journal of Geochemical Exploration Volume 188, May 2018 87-94

Lineage

Extended abstract prepared for Exploration 2017 Conference (poster), later withdrawn as could not identify funds for travel. Submitted to Journal of Geochemical Exploration as a short paper instead April 2017 NGSA data

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[-54.75, -9.2402, 112.92, 159.11]

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Spatial Resolution

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