The cooling and exhumation of the Albany-Fraser Orogen, Western Australia, contrained by 40Ar/39Ar, Rb/Sr and U/Pb thermochronology

Elisabeth Scibiorski

Research output: ThesisDoctoral Thesis

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Abstract

This thesis investigates the cooling and exhumation history of the Albany-Fraser Orogen of southwestern Australia. The thermal path of the orogen following Mesoproterozoic orogeny is constructed using temperature-lime pairs derived with 40Ar/39Ar, Rb/Sr and U/Pb thermochronology.
The results describe a cooling history for the Albany-Fraser Orogen with two key features. First, cooling was significantly faster in the west than In the east. This is a product of consistent northwest-southeast compression acting on a curved orogen. Second, the preservation of older 40Ar/39Ar cooling ages in the southwestern Fraser Zone suggests it remained cool and dry during metamorphism.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Award date24 Oct 2017
DOIs
Publication statusUnpublished - 2017

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