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

Elisabeth Scibiorski

doi:10.4225/23/5a03a0730e8b3

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

Elisabeth Scibiorski

School of Earth Sciences

Research output: Thesis › Doctoral 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 language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Kemp, Tony, Supervisor Tohver, Eric, Supervisor Jourdan, Fred, Supervisor, External person
Award date	24 Oct 2017
DOIs	https://doi.org/10.4225/23/5a03a0730e8b3
Publication status	Unpublished - 2017

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10.4225/23/5a03a0730e8b3

THESIS - DOCTOR OF PHILOSOPHY - SCIBIORSKI Elisabeth Alice - 2017
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Cite this

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

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.",

keywords = "Albany-Fraser Orogen, Exhumation, Cooling, thermochronology, geochronology, mezoproterozoic tectonics",

author = "Elisabeth Scibiorski",

year = "2017",

doi = "10.4225/23/5a03a0730e8b3",

language = "English",

school = "The University of Western Australia",

}

TY - BOOK

T1 - The cooling and exhumation of the Albany-Fraser Orogen, Western Australia, contrained by 40Ar/39Ar, Rb/Sr and U/Pb thermochronology

AU - Scibiorski, Elisabeth

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - Albany-Fraser Orogen

KW - Exhumation

KW - Cooling

KW - thermochronology

KW - geochronology

KW - mezoproterozoic tectonics

U2 - 10.4225/23/5a03a0730e8b3

DO - 10.4225/23/5a03a0730e8b3

M3 - Doctoral Thesis

ER -

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

Abstract

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