The age of the Telfer Au-Cu deposit and its relationship with granite emplacement, Paterson Province, Western Australia

Dating of granites from the Telfer Region of the Paterson Province shows that felsic magmatism took place between ca. 645 Ma and ca. 605 Ma, with clusters at ca. 645, and ca. 630 and a single granite at 605 Ma (the O'Callaghans Granite). This magmatism is interpreted to be a result of deformation and crustal thickening associated with the Miles Orogeny, the first major compressional deformation to affect the Neoproterozoic sedimentary rocks of the Yeneena Basin. Dating of monazite and xenotime from Au-bearing veins at the Telfer Mine show that early concordant vein mineralisation took place at 652 ± 7 Ma, while a late-stage discordant vein yielded an age of 645 ± 7 Ma. These dates indicate that mineralisation took place over a relatively restricted period of time, at a similar time to the emplacement of the earliest granites of the Miles Orogeny, and was apparently unrelated to magmatism at ca. 630 Ma and ca. 605 Ma. Although there is a close temporal relationship between the early granites and Au mineralisation, the lack of a close spatial association suggests that it is possible that granite emplacement was not directly involved in the mineralising system, but was instead a separate consequence of deformation associated with the Miles Orogeny. If this was the case, then other parts of the Yeneena Basin affected by the Miles Orogeny, but not intruded by granites, could be prospective for lode-Au mineralisation.

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Identification info

Date (Publication)
2010-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/70102

Cited responsible party
Role Organisation / Individual Name Details
Author

Maidment, D.W.

 1
Author

Huston, D.L.

 2
Author

Heaman, L.

 3
Name

Professional Opinion

Issue identification

2010/05

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Commonwealth of Australia (Geoscience Australia)

 Voice
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Fraser, G.
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  • Geoscientific information

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Unknown

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

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  • GA Publication

  • Professional Opinion

Theme

  • economic geology

  • geochronology

  • metallogenesis

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  • AU-WA

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

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Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

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http://creativecommons.org/licenses/

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License

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Australian Government Security ClassificationSystem

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2018-11-01T00:00:00
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English
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Download the file (pdf)

Download the file (pdf)

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Non geographic dataset
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GA Publication

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Title

Australian Government Security ClassificationSystem

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

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

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/a05f7892-efb6-7506-e044-00144fdd4fa6

Title

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Language
English
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UTF8
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Commonwealth of Australia (Geoscience Australia)

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Type of resource

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Document
Name

Professional Opinion

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Geoscience Australia - short identifier for metadata record with uuid

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eCatId/70102

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-efb6-7506-e044-00144fdd4fa6

Date info (Creation)
2025-03-12T00:34:08.77Z
Date info (Revision)
2025-03-12T00:34:31.259Z
Date info (Creation)
2010-02-02T00:00:00

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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W


Keywords

economic geology geochronology metallogenesis

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