Monash University
Khumo Leseane PhD Thesis 27586650.pdf (12.77 MB)

Tectonic evolution of Macquarie Arc using constraints from geophysics

Download (12.77 MB)
posted on 2022-08-23, 06:03 authored by KHUMO LESEANE

This interdisciplinary study uses joint gravity and magnetic interpretation and modeling, geology, and synthesis of geochronology and geochemistry data to understand the Ordovician to Permian tectonic evolution of the southeastern Lachlan Orogen. There is a focus on the role of pre-existing (or inherited) structures during major tectonic events. The Lachlan transverse zone is an inherited structure that formed along the northern margin of a stranded microcontinent. This structure has influenced the distribution of magmatism, and has controlled intensity of crustal extension, the size of continental back arc basins, and the modes of subsequent basin inversion.


Campus location


Principal supervisor

Peter Betts

Additional supervisor 1

Robin Armit

Additional supervisor 2

Laurent Ailleres

Year of Award


Department, School or Centre

Earth, Atmosphere and Environment


Doctor of Philosophy

Degree Type



Faculty of Science