The Heavy Mineral Map of Australia: vision, implementation and progress
Heavy minerals (HMs) have been used successfully around the world in energy and mineral exploration, yet in Australia no public domain database or maps exist that document the background HM assemblages or distributions. Here, we describe a project that delivers the world’s first continental-scale HM maps. We applied automated mineralogical identification and quantification of the HMs contained in floodplain sediments from large catchments covering most of Australia. The composition of the sediments reflects the dominant rock types in each catchment, with the generally resistant HMs largely preserving the mineralogical fingerprint of their host protoliths through the weathering–transport–deposition cycle. Underpinning this vision was a pilot project, based on 10 samples from the national sediment sample archive, which in 2020 demonstrated the feasibility of a larger, national-scale project. Two tranches of the subsequent national HM dataset, one focusing on a 965,000 km2 region centred on Broken Hill in southeastern Australia, the other focusing on a 950,000 km2 area in northern Queensland and Northern Territory, were released in 2022. In those releases, over 47 million mineral grains were analysed in 411 samples, identifying over 150 HM species. We created a bespoke, cloud-based mineral network analysis (MNA) tool to visualize, explore and discover relationships between HMs as well as between them and geological settings or mineral deposits. We envisage that the Heavy Mineral Map of Australia and MNA tool, when released publicly by the end of 2023, will contribute significantly to mineral prospectivity analysis and modelling, particularly for technology critical elements and their host minerals
<b>Citation:</b> Caritat P. de, Walker A.T., Bastrakov E. & McInnes B.I.A., 2023. From The Heavy Mineral Map of Australia: vision, implementation and progress. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, https://dx.doi.org/10.26186/148678
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Identification info
- Date (Creation)
- 2023-08-10
- Date (Publication)
- 2023-08-14T23:26:57
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/148678
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/148678
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author de Caritat, P.
MEG Internal Contact Author Walker, A.T.
Curtin University External Contact Author Bastrakov, E.
MEG Internal Contact Author McInnes, B.I.A
External Contact
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EFTF Extended Abstract
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- Completed
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
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MEG Internal Contact Resource provider Minerals, Energy and Groundwater Division
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Extent
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- As needed
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Product data repository: Various Formats
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Data Store directory containing the digital product files
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GEOCHEMISTRY
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EFTF - Exploring for the Future
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Australia's Resources Framework
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Heavy Mineral Map
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Published_External
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Creative Commons Attribution 4.0 International Licence
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CC-BY
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4.0
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(c) Commonwealth of Australia (Geoscience Australia) 2023
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Australian Government Security Classification System
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Extended Abstract for download (pdf) [4.78 MB]
Extended Abstract for download (pdf) [4.78 MB]
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pdf
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This publication was produced as part of Geoscience Australia's Exploring for the Future Program. It was presented at the Exploring for the Future 2023 Showcase.
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Australian Government Security Classification System
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- 2018-11-01T00:00:00
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GA publication: Extended Abstract
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Geoscience Australia - short identifier for metadata record with
uuid
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- 2019-04-08T01:55:29
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Metadata standard
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AU/NZS ISO 19115-1:2014
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ISO 19115-1:2014
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ISO 19115-3
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
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