Product catalogue
Using surface regolith geochemistry to map the major crustal blocks of the Australian continent
Multi-element near-surface geochemistry from the National Geochemical Survey of Australia has been evaluated in the context of mapping the exposed to deeply buried major crustal blocks of the Australian continent. The major crustal blocks, derived from geophysical and geological data, reflect distinct tectonic domains comprised of igneous, metamorphic and sedimentary rock assemblages representing a time scale ranging from early Archean to recent Cenozoic. The geochemical data have been treated as compositional data to uniquely describe and characterize the geochemistry of the major crustal blocks across Australia according to the following workflow: imputation of missing/censored data, log-ratio transformation, multivariate statistical analysis, classification/allocation, and multivariate geospatial (minimum/maximum autocorrelation factor) analysis. Using cross validation techniques the uniqueness of each major crustal block has been quantified. The abilities to predict (1) the membership, or lack thereof, of a surface regolith sample to one, or none, of the major crustal blocks, and (2) the major crustal block at sites that have not been sampled are demonstrated. In conclusion, the surface regolith of the Australian continent contains a geochemical record of the original crustal block composition, despite secondary modifications due to physical transport and chemical weathering effects.
<b>Citation:</b> E.C. Grunsky, P. de Caritat, U.A. Mueller, Using surface regolith geochemistry to map the major crustal blocks of the Australian continent, <i>Gondwana Research</i>, Volume 46, 2017, Pages 227-239, ISSN 1342-937X,
Simple
Identification info
- Date (Creation)
- 2016-08-22T12:00:00
- Date (Publication)
- 2023-10-25T23:55:23
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/101600
Identifier
- Codespace
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Digital Object Identifier
- Cited responsible party
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Role Organisation / Individual Name Details Author Grunsky, E.
External Contact Author de Caritat, P.
MEG Internal Contact Author Mueller, U.
External Contact Publisher Elsevier B.V.
External Contact
- Name
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Gondwana Research
- Issue identification
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Volume 46, June 2017
- Page
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227-239
- Purpose
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Article for submission to Gondwana Research Journal
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Main, P.
MEG Internal Contact Resource provider Minerals, Energy and Groundwater Division
External Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
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
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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- Project
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National Geochemical Survey of Australia
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- Discipline
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compositional data
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- Discipline
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multivariate statistics
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- Discipline
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posterior probability
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- Discipline
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typicality
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- Discipline
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minimum/maximum autocorrelation factor analysis
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- Discipline
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major crustal boundaries
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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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Crown Copyright ©2017
Resource constraints
- Classification
- Unclassified
- 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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Link to Journal
Link to Journal
- Distribution format
-
Resource lineage
- Statement
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Article for submission to Gondwana Research Journal
- Hierarchy level
- Document
Metadata constraints
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/75be5a53-1ed8-4796-b867-ee6f9d39c43a
- Title
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GeoNetwork UUID
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Main, P.
MEG Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Journal Articles and Conference Papers
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/101600
- Date info (Creation)
- 2016-08-22T15:05:17
- Date info (Revision)
- 2016-08-22T15:14:26
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
- Edition date
- 2015-07-01T00:00:00
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, April 2015