Product catalogue
Depth to pre-Neoproterozoic rocks between Tennant Creek and Mt. Isa – A preliminary model
It is generally accepted that the near surface search space for mineral deposits in Australia and elsewhere in the world has been well explored and the frontier of exploration lies beneath post-mineralisation cover. The Exploring for the Future program aims to unlock this new search space in northern Australia and parts of southern Australia by reducing the technical risk of mineral exploration through the provision of innovative pre-competitive data and information. The first step to de-risk undercover exploration is to simply define the depth to prospective rocks as cover-thickness places first order constraints on the economic search space. With this aim in mind we present a preliminary model of the depth to pre-Neoproterozoic rocks between Tennant Creek and Mt Isa, an area of focused integrated studies of the Exploring for the Future program. This work aims to compliment recent and ongoing mineral potential assessments in this region, which suggest covered pre-Neoproterozoic rocks are prospective for iron oxide-copper-gold and sediment hosted base metal mineral deposits. Our model utilises a dasets of over eight four thousand point estimates of the depth to pre- Neoproterozoic strata from boreholes, reflection seismic profile interpretations and depth to magnetic top estimates mostly sourced from the new Estimates of Geological and Geophysical Surfaces database supplemented by the distribution of pre-Neoproterozoic strata outcrops. These constraints were objectively queried based on their reliability, subsampled at 0.05 degrees and gridded using an adjustable tension continuous curvature-surfacing algorithm. The result shows Palaeozoic cover-thickness generally increases away from outcrops with a notable exception east of Tennant Creek where cover-thickness is typically less than 250 m thick. Fortuitously, this region of shallow cover termed the East Tennant Ridge corresponds with a region recently assess to have potential to host iron oxide-copper-gold mineralisation.
Simple
Identification info
- Date (Creation)
- 2019-08-22T12:00:00
- Date (Publication)
- 2019-08-30T04:19:37
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/130881
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.11636/Record.2019.014
- Cited responsible party
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Role Organisation / Individual Name Details Author Czarnota, K
Co-author Wilford, J.
Co-author Bonnardot, M.A.
Co-author Meixner, T.
Co-author English, P.
Author Pitt, L.
Co-author Mathews, E.
Co-author Thorose, M.D.
Co-author Curtis, C.
Co-author Southby, C.
- Name
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Record
- Issue identification
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2019/014
- Purpose
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To provide a preliminary model of the depth to pre-Neoproterozoic rocks in the region between Tennant Creek and Mt Isa.
- 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 Haynes, M.W.
Resource provider Resources Division
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- 2019-07-01 2019-08-19
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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GEOLOGY
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EARTH SCIENCES
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- Project
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Exploring for the Future
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- Project
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EFTF
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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
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- 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
- OnLine resource
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Download the record (pdf)
Download the record (pdf)
- Distribution format
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pdf
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- OnLine resource
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Download the data package
Download the data package
- Distribution format
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various
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Resource lineage
- Statement
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Not provided
Reference System Information
- Reference system identifier
- EPSG/GDA94 (EPSG:4283)
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/50ac7c2c-b979-4128-9fe4-1feab4f5e063
- Title
-
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.W.
Type of resource
- Resource scope
- Document
- Name
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GA publication: Record
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/130881
- Date info (Creation)
- 2019-04-08T01:55:29
- Date info (Revision)
- 2019-04-08T01:55:29
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
- 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
- https://pid.geoscience.gov.au/dataset/ga/122551