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    Recovery of the deep biosphere at the Chicxulub impact crater

    Access Status
    Fulltext not available
    Embargo Lift Date
    2025-12-20
    Authors
    Quraish, Sohaib Naseer
    Date
    2023
    Supervisor
    Marco Coolen
    Kliti Grice
    Type
    Thesis
    Award
    PhD
    
    Metadata
    Show full item record
    Faculty
    Science and Engineering
    School
    School of Earth and Planetary Sciences
    URI
    http://hdl.handle.net/20.500.11937/94164
    Collection
    • Curtin Theses
    Abstract

    This thesis employed molecular and geochemical analysis, revealing the diverse microbial communities involved in biogeochemical cycling that differed significantly between granite and non-granite rocks from the granitoid basement underlying the Chicxulub impact crater. These outcomes showed that in addition to newly formed lithologies, impact-induced geochemical boundaries within the crater still shape the recovered modern-day deep biosphere. This study provides a model system for searching for microbial life in the subsurface of well-preserved Mars impact craters.

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