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Articles | Volume 8, issue 2
Articles | Volume 8, issue 2
https://doi.org/10.5194/se-8-421-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-8-421-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 8, issue 2
Research article
 | 
05 Apr 2017
Research article |  | 05 Apr 2017

First magmatism in the New England Batholith, Australia: forearc and arc–back-arc components in the Bakers Creek Suite gabbros

Seann J. McKibbin, Bill Landenberger, and C. Mark Fanning

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Latest update: 21 Nov 2024
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Short summary
The youngest, easternmost part of continental Australia formed in an ancient subduction zone by rifting of the crust. This drove melting of the underlying mantle, producing basaltic magmas that intruded the crust. We determined the composition and ages of these intrusives, finding that they predate other types of magmatic intrusion in the area. This indicates progression in magma types from basaltic (mantle origin), through mixed, to granitic (crust recycling) during the growth of this region.
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