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

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Created 20/01/2025

Updated 20/01/2025

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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. Citation: Patrice de Caritat, Continental-scale geochemical surveys and mineral prospectivity: Comparison of a trivariate and a multivariate approach, Journal of Geochemical Exploration, Volume 188, 2018, Pages 87-94, ISSN 0375-6742, https://doi.org/10.1016/j.gexplo.2018.01.014

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Title Continental-scale geochemical surveys and mineral prospectivity: comparison of a trivariate and a multivariate approach
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/12b20b2b-daca-4c4e-adfc-992a94ef7d45
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 28/04/2017
Geospatial Coverage {"type": "Polygon", "coordinates": [[[112.92, -54.75], [159.11, -54.75], [159.11, -9.2402], [112.92, -9.2402], [112.92, -54.75]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Continental-scale geochemical surveys and mineral prospectivity: comparison of a trivariate and a multivariate approach". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/continental-scale-geochemical-surveys-and-mineral-prospectivity-comparison-of-a-trivariate-and-

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