Authors / CoAuthors
Cloutier, J. | Ford, A. | Huston, D. | Doublier, M. | Schofield, A. | Waltenberg, K. | de Caritat, P. | Fraser, G. | Beyer, E. | Bastrakov, E. | Czarnota, K.
Abstract
<div>Australian sediment-hosted mineral systems are important sources of base metals and critical minerals that are vital to delivering Australia’s low-carbon economy. In Australia, sediment-hosted resources account for ~82% and ~86% of the total zinc (Zn) and lead (Pb) resources respectively. Given their significance to the Australian economy, four national-scale mineral potential models for sediment-hosted Zn-Pb mineral systems have been developed: clastic-dominated siliciclastic carbonate, clastic-dominated siliciclastic mafic, Mississippi Valley-type and Irish-type. In addition to the potential for Zn-Pb mineralisation, the uncertainty related to data availability has been examined. The mineral potential models were created using a mineral systems-based approach where mappable criteria have been used to assess the prospectivity of each system. Each model has been derived from a large volume of precompetitive geoscience data. The clastic-dominated siliciclastic carbonate mineral potential model predicts 92% of known deposits and occurrences within 15.5% of the area, the clastic-dominated siliciclastic mafic mineral potential model predicts 85% of deposits and occurrences within 27% of the area, and the Mississippi Valley-type mineral potential model predicts 66% of known deposits and occurrences within 31% of the area. Each model successfully predict the location of major sediment-hosted Zn-Pb deposits while highlighting new areas of elevated prospectivity in under-explored regions of Australia, reducing the exploration search space by up to 85% for sediment-hosted Zn-Pb mineral systems.</div>
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document
eCat Id
147540
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords
- ( Project )
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- EFTF – Exploring for the Future
- ( Project )
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- Australia’s Resources Framework
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- Mineral potential
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- sediment-hosted base metals
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- mineral systems
- theme.ANZRC Fields of Research.rdf
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- Earth SciencesData mining and knowledge discovery
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- Published_External
Publication Date
2023-03-13T22:59:52
Creation Date
2022-12-10T03:00:00
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completed
Purpose
Four national-scale mineral potential maps for sediment-hosted Zn-Pb resources have been developed: clastic-dominated siliciclastic carbonate, clastic-dominated siliciclastic mafic, Mississippi Valley-type and Irish-type mineral systems. In addition to the potential the zinc-lead mineralisation, the uncertainty related to data availability has been examined. The mineral potential maps were created using a mineral systems-based approach where mappable criteria have been used to assess the prospectivity of each system. Each mineral potential map has been derived from a large volume of precompetitive geoscience data. The mineral potential maps successfully predict the location of major sediment-hosted Zn-Pb deposits while highlighting new areas of elevated prospectivity in under-explored regions of Australia, reducing the exploration search space for sediment-hosted Zn-Pb mineral systems.
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geoscientificInformation
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<div>Multiple national-scale geological and geophysical datasets were used as the basis for generating novel mappable criteria for distinct mineral system components. These have been integrated into a a series of coherent products to assess mineral prospectivity.</div>
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[-44, -9, 112, 154]
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