Product catalogue
Catchment-based gold prospectivity analysis combining geochemical, geophysical and geological data across northern Australia
The results of a pilot study into the application of an unsupervised clustering approach to the analysis of catchment-based National Geochemical Survey of Australia (NGSA) geochemical data combined with geophysical and geological data across northern Australia are documented. NGSA Mobile Metal Ion® (MMI) element concentrations and first and second order statistical summaries across catchments of geophysical data and geological data are integrated and analysed using Self-Organising Maps (SOM). Input features that contribute significantly to the separation of catchment clusters are objectively identified and assessed.
A case study of the application of SOM for assessing the spatial relationships between Au mines and mineral occurrences in catchment clusters is presented. Catchments with high mean Au code-vector concentrations are found downstream of areas known to host Au mineralisation. This knowledge is used to identify upstream catchments exhibiting geophysical and geological features that indicate likely Au mineralisation. The approach documented here suggests that catchment-based geochemical data and summaries of geophysical and geological data can be combined to highlight areas that potentially host previously unrecognised Au mineralisation.
<b>Citation:</b> M. J. Cracknell, P. de Caritat; Catchment-based gold prospectivity analysis combining geochemical, geophysical and geological data across northern Australia. <i>Geochemistry: Exploration, Environment</i>, Analysis 2017; 17 (3): 204–216.
doi: https://doi.org/10.1144/geochem2016-012
This article appears in multiple journals (Lyell Collection & GeoScienceWorld)
Simple
Identification info
- Date (Creation)
- 2016-09-20T09:00:00
- Date (Publication)
- 2023-10-26T01:20:27
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/101960
Identifier
- Codespace
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Digital Object Identifier
- Cited responsible party
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Role Organisation / Individual Name Details Author Cracknell, M.J.
External Contact Author de Caritat, P.
MEG Internal Contact Publisher The Geological Society of London for GSL and AAG
External Contact
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Geochemistry: Exploration, Environment, Analysis - GEEA
- Issue identification
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Volume 17, 2017
- Page
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204-216
- Purpose
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Article to be submitted in Geochemistry: Exploration, Environment, Analysis
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Main, P.
MEG Internal Contact
- Spatial representation type
- Topic category
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- 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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- Keywords
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Regolith
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- Keywords
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Geochemistry
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Geophysics
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Self-Organising Maps
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Australia
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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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3.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
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© 2017 Commonwealth of Australia (Geoscience Australia)
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 Article
Link to Article
- Distribution format
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Resource lineage
- Statement
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Article to be submitted in Geochemistry: Exploration, Environment, Analysis
- Hierarchy level
- Dataset
Metadata constraints
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/24d9a9ff-3d3d-4495-84f0-89bfef54294e
- Title
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GeoNetwork UUID
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Owner Main, P.
MEG Internal Contact 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/101960
- Metadata linkage
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https://internal.ecat.ga.gov.au/geonetwork/srv/eng/search?uuid=24d9a9ff-3d3d-4495-84f0-89bfef54294e
Point-of-truth metadata URL
- Date info (Creation)
- 2016-09-20T11:05:13
- Date info (Revision)
- 2017-03-28T04:39:29
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 (Draft Schemas 2015)
- 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