Granitic magmatism in the Yilgarn Craton: implications for crustal growth and metallogeny  


Authors / CoAuthors

Champion, D.C. | Cassidy, K.F.

Abstract

The Archean Yilgarn Craton of Western Australia, is not only one of the largest extant fragments of Archean crust in the world, but is also one of the most richly-mineralised regions in the world. Understanding the evolution of the craton is important, therefore, for constraining Archean geodynamics, and the influence of such on Archean mineral systems. The Yilgarn Craton is dominated by felsic intrusive rocks - over 70% of the rock types. As such these rocks hold a significant part of the key to understanding the four-dimensional evolution of the craton, providing constraints on the nature and timing of crustal growth, the role of the mantle, and also the timing of important switches in crustal growth geodynamics. The granites also provide constraints on the nature and age of the crustal domains within the craton. Importantly, this crustal pre-history appears to have exerted a significant, but poorly understood, spatial control on the distribution of mineral systems, such as gold, komatiite-associated nickel sulphide and volcanic-hosted massive sulphide (VHMS) base metal systems

Product Type

nonGeographicDataset

eCat Id

70638

Contact for the resource

  Custodian

MNHD  

  Point of contact

Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

Keywords

  • External PublicationConference Paper
( Theme )
  • architecture
( Theme )
  • commodities
( Theme )
  • geodynamics
( Theme )
  • geochemistry
( Theme )
  • gold
( Theme )
  • isotopes
( Theme )
  • plate tectonics
  • AU-WA
Australian and New Zealand Standard Research Classification (ANZSRC)
  • Earth Sciences
  • Published_Internal

Publication Date

2010-01-01T00:00:00

Creation Date

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Australian Government Security ClassificationSystem    

Classification - unclassified

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Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

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Purpose

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unknown

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geoscientificInformation

Series Information

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Unknown

Parent Information

Extents

[-34.0, -23.0, 116.0, 124.0]

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