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The layered basic and ultrabasic intensives of the Giles Complex, Central Australia

The layered basic and ultrabasic intensives of the Giles Complex, Central Australia
The layered basic and ultrabasic intensives of the Giles Complex, Central Australia
A series of layered basic and ultrabasic intrusions in Central Australia is similar to other folded basic complexes. The Australian examples were emplaced after a period of highgrade metamorphism and have subsequently been rotated. Chemical investigation of several of the intrusions shows that cryptic variation is present, and in at least two cases intrusions were initially of different bulk composition. It is suggested that the parent magma was partially fractionated prior to final emplacement. The relative deficiency of ultrabasic rocks in this complex (less than 10%) when compared with other complexes is attributed to this process.
0010-7999
1-11
Nesbitt, R.W.
6a124ad1-4e6d-4407-b92f-592f7fd682e4
Talbot, J.L.
299d1cd1-1ca9-4c1e-b143-f1c0b6af81e0
Nesbitt, R.W.
6a124ad1-4e6d-4407-b92f-592f7fd682e4
Talbot, J.L.
299d1cd1-1ca9-4c1e-b143-f1c0b6af81e0

Nesbitt, R.W. and Talbot, J.L. (1966) The layered basic and ultrabasic intensives of the Giles Complex, Central Australia. Contributions to Mineralogy and Petrology, 13 (1), 1-11.

Record type: Article

Abstract

A series of layered basic and ultrabasic intrusions in Central Australia is similar to other folded basic complexes. The Australian examples were emplaced after a period of highgrade metamorphism and have subsequently been rotated. Chemical investigation of several of the intrusions shows that cryptic variation is present, and in at least two cases intrusions were initially of different bulk composition. It is suggested that the parent magma was partially fractionated prior to final emplacement. The relative deficiency of ultrabasic rocks in this complex (less than 10%) when compared with other complexes is attributed to this process.

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More information

Published date: 1966
Organisations: Geochemistry

Identifiers

Local EPrints ID: 361901
URI: https://eprints.soton.ac.uk/id/eprint/361901
ISSN: 0010-7999
PURE UUID: 1445fd80-f120-441e-8777-35c2042c460a

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Date deposited: 05 Feb 2014 14:13
Last modified: 09 Nov 2017 00:38

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Contributors

Author: R.W. Nesbitt
Author: J.L. Talbot

University divisions

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