Product catalogue
Inferred lithospheric mantle metasomatism
<div>Building on the national-scale thermochemical tomographic inversions of Haynes & Afonso (2023), we infer regions of subduction-driven metasomatic alteration within the Australia sub-continental lithospheric mantle. Such regions are inferred on the basis of age-corrected magnesium number anomalies for bulk composition of the lithospheric mantle, and the spatial correlation of these features with electrical conductors. This defines a mappable criteria for mineral system conceptual models focused on the transport of melts from re-enriched upper mantle sources. Mapping this feature through stochastic uncertainty propogation of inferred mantle compositions enables us to quantify the level of agreement in the spatial constraints on the feature. Here, we present a voting map that quantifies the relative presence or absence of such features across Australia under any arbitrary model realisation.</div><div><br></div><div>Geoscience Australia's Exploring for the Future program provides precompetitive information to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, we are building a national picture of Australia's geology and resource potential. This leads to a strong economy, resilient society and sustainable environment for the benefit of all Australians. This includes supporting Australia's transition to a low emissions economy, strong resources and agriculture sectors, and economic opportunities and social benefits for Australia's regional and remote communities. The Exploring for the Future program, which commenced in 2016, is an eight year, $225m investment by the Australian Government.</div>
Simple
Identification info
- Date (Creation)
- 2024-05-03T12:00:00
- Date (Publication)
- 2024-06-25T01:09:56
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149649
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/149649
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Haynes, M.
Internal Contact Author Morfiadakis, A.
Internal Contact Author Pincus, J.
Internal Contact
- Purpose
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Sub-continental lithospheric mantle zones of inferred subduction-driven metasomatism, as a mappable criteria for integration into a national-scale assessment of iron oxide copper gold mineral potential.
- Status
- Point of contact
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Role Organisation / Individual Name Details Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Haynes, M.
Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- Not planned
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Project
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EFTF – Exploring for the Future
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- Project
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Australia’s Resources Framework
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- Project
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Lithospheric Geophysics
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- Project
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Mineral Potential Mapping
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- Keywords
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SCLM
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- Keywords
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Sub-Continental Lithospheric Mantle
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- Keywords
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Metasomatism
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- Keywords
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Thermochemical inversion
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- theme.ANZRC Fields of Research.rdf
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Earth Sciences
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
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(c) Commonwealth of Australia (Geoscience Australia) 2024
Resource constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
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Australian Government Security Classification System
Associated resource
- Association Type
- Was derived from
- Title
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Thermo-chemical inversion of the Australian lithospheric mantle (FR23)
- Citation identifier
- 147926
- Citation identifier
- 925a4194-d032-4da3-b727-09a843014388
Associated resource
- Association Type
- Was derived from
- Title
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AusLAMP mapping lithospheric architecture and mineral potential in central and eastern Australia
- Citation identifier
- 149489
- Citation identifier
- 2910c15d-a7bc-4bef-88ff-a1825bf2829d
Associated resource
- Association Type
- Was derived from
- Title
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Neodymium depleted mantle model age map of Australia: explanatory notes and user guide
- Citation identifier
- 77772
- Citation identifier
- e83489ad-7f18-74c0-e044-00144fdd4fa6
Associated resource
- Association Type
- Was informed by
- Title
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First national mineral system assessment of Australia's iron oxide copper-gold potential
- Citation identifier
- 149357
- Citation identifier
- afa29632-67df-45e4-a5e7-3ae2261f1172
Associated resource
- Association Type
- Was informed by
- Title
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The Australian sub-continental lithospheric mantle. Mapping metasomatism as targeting criteria for IOCG
- Citation identifier
- 149662
- Citation identifier
- d0e82490-9244-480a-ba59-10614295acd5
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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Download Data (txt tif) [16.9 KB]
Download Data (txt tif) [16.9 KB]
- Distribution format
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txt tif
- File decompression technique
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unzip
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Resource lineage
- Statement
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<div>Magnesium number for the bulk lithospheric mantle is calculated from the thermochemical tomographic inversions of Haynes & Afonso (2023). Spatial anomalies in magnesium number trends are estimated after correcting for the secular evolution of the mantle, based on observed correlations with the Sm-Nd depleted mantle model age dataset of Champion (2013). Spatial coincidence of magnesium number anomalies with mantle penetrating electrical conductors (from Duan, 2024) is used to infer regions of subduction-driven metasomatic alteration relevant to iron oxide copper gold mineralisation. The spatial correlations within the lithospheric composition models of Haynes & Afonso (2023) are estimated via the fitting of variogram models using the GSTools software repository (Müller et al., 2022), and the subsequent variograms are used to undertake a stochastic uncertainty propagation.</div><div><br></div><div>Citations for the above references can be found in the embedded metadata statement.</div>
Reference System Information
- Reference system identifier
- EPSG/WGS 84 / geographic 2D (EPSG: 4326)
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/48c823ba-fe82-4303-a074-5645526d5808
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Haynes, M.
Internal Contact
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/149649
- Date info (Creation)
- 2024-06-25T01:01:58
- Date info (Revision)
- 2024-06-25T01:01:58
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- http://pid.geoscience.gov.au/dataset/ga/122551