Tomofast-x Gravity Inversion to Analyse the Upper Crustal Structure of Archean Greenstone Belts

Lizzie Bruce

    Research output: ThesisMaster's Thesis

    26 Downloads (Pure)

    Abstract

    The objective of this research is to map in 3D the granite and greenstone belts within a part of the Kalgoorlie Terrane by inverting surface gravity data. Interval bound constraints are applied to the inversion using the Alternating Direction Method of Multipliers. Two methods are tested; 1) intervals derived from petrophysical data 2) and intervals sourced from the density distribution of unconstrained inversions. Although the data misfit is low for all cases, the most accurate model is determined to be the inversion that used petrophysical data for the density intervals. This model agrees with previous studies in the area.
    Original languageEnglish
    QualificationMasters
    Awarding Institution
    • The University of Western Australia
    Supervisors/Advisors
    • Jessell, Mark, Supervisor
    • Ogarko, Vitaliy, Supervisor
    • Giraud, Jeremie, Supervisor
    Thesis sponsors
    Award date18 Dec 2023
    DOIs
    Publication statusUnpublished - 2023

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