Crustal structure of the Olympic Dam region: Constraints from deep seismic reflection profiles

Two nearly orthogonal deep seismic reflection profiles acquired in the northern Stuart Shelf, and centred on the Olympic Dam Fe oxide Cu-U-Au deposit, clearly image the cover successions and the structure of the cratonic basement around the deposit. Along the line of the profiles, sequences of the Pandurra Formation, Adelaide Rift Complex, and the Stuart Shelf have total thicknesses varying from ~300 m to over 6 km. Known upper crustal units of the basement, e.g., Burgoyne batholith, Gawler Range Volcanics, Wallaroo Group, and Donington Granitoid Suite, were also clearly imaged. The mid-crust is dominated by a sub-horizontal, internally packaged, partly mafic layer up to ~5 km thick. The lower crust contains a north-dipping transcrustal shear zone, which does not appear to separate crust identifiable as discrete terranes. However, the lower crust farther to the northeast may be a distinct terrane, as it is relatively homogenous and characterised by sub-horizontal, rather than dipping, reflectivity. The seismic Moho occurs at about 40-42 km depth. The upper crust contains dipping seismic events interpreted as thrust complexes, which may have provided first-order fluid pathways for the minerals system. Excepting orthogneisses of the older Donington Granitoid Suite, the only plutonic body imaged is the Burgoyne batholith of the Hiltaba Suite.

Simple

Identification info

Date (Publication)
2005-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/68330

Cited responsible party
Role Organisation / Individual Name Details
Author

Lyons, P.

 1
Point of contact
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MNHD
Owner

Commonwealth of Australia (Geoscience Australia)
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Commonwealth of Australia (Geoscience Australia)

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Topic category
  • Geoscientific information

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N
S
E
W


Maintenance and update frequency
Unknown

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Title

Product data repository: Various Formats

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FILE:DATA-DIRECTORY

Name of the resource

Data Store directory containing the digital product files

Description

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • PowerPoint

Theme

  • mineral exploration

  • geochemistry

Keywords

  • AU-SA

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

Website

http://creativecommons.org/licenses/

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License
Use constraints
License

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Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified
Language
English
Character encoding
UTF8

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Commonwealth of Australia (Geoscience Australia)

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OnLine resource

Download the file (pdf)

Download the file (pdf)

Distribution format

  • pdf

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Unknown

Hierarchy level
Non geographic dataset
Other

PowerPoint

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Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

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urn:uuid/a05f7892-db3b-7506-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

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Type of resource

Resource scope
Document
Name

nonGeographicDataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/68330

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-db3b-7506-e044-00144fdd4fa6

Date info (Revision)
2018-04-22T08:13:29
Date info (Creation)
2008-11-14T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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N
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E
W


Keywords

geochemistry mineral exploration

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