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    An Electron Backscatter Diffraction Study of Archean Impact Spherules from the Pilbara Craton, Western Australia

    Lim CE 2022 Public 2years.pdf (28.92Mb)
    Access Status
    Open access
    Authors
    Lim, Ching Ee
    Date
    2022
    Supervisor
    Aaron Cavosie
    Nick Timms
    Type
    Thesis
    Award
    MRes
    
    Metadata
    Show full item record
    Faculty
    Science and Engineering
    School
    School of Earth and Planetary Science
    URI
    http://hdl.handle.net/20.500.11937/89772
    Collection
    • Curtin Theses
    Abstract

    This thesis describes a systematic morphological study of minerals in feldspathic impact spherules from both Dales Gorge and Bee Gorge spherule layers in the Hamersley Basin of Pilbara Craton in Western Australia. The overarching goals are to advance interpretations on spherule formation processes. The research involves the characterisation of feldspathic spherules of the two impact horizons to propose a vapor plume model to identify where various spherule types may have formed. This includes the comparison of representative optical photomicrographs with their respective electron backscatter diffraction (EBSD) analytical results.

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