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An integrated structural, geophysical, geochemical and petrochronological study of the Otago Schist, New Zealand

thesis
posted on 2021-01-28, 21:39 authored by Casey Blundell
This study utilises a combination of disparate skills to investigate the geological characteristics of the Otago Schist. Interpretation of electromagnetic and magnetic data facilitated targeted mapping locations, as well as the selection of samples for whole-rock chemical analyses, age dating and isotopic studies. Results indicate that the Permian-Triassic aged rocks which comprise the Otago Schist may have been sourced from distant locations from along the Gondwana margin from northeastern Australia, to southern South America and Patagonia. This study demonstrates the effectiveness of using a wide variety of approaches to better understand and characterise the evolution of complexly deformed schist belts, with implications for better understanding plate tectonic reconstructions.

History

Campus location

Australia

Principal supervisor

Laurent Ailleres

Additional supervisor 1

Robin Armit

Additional supervisor 2

Peter Betts

Additional supervisor 3

Adam Martin

Year of Award

2021

Department, School or Centre

Earth, Atmosphere and Environment

Additional Institution or Organisation

GNS Science NZ

Additional supervisor 4

Steven Micklethwaite

Course

Doctor of Philosophy

Degree Type

DOCTORATE

Faculty

Faculty of Science