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    Infrared spectroscopic biosignatures from hidden cave, New Mexico: possible applications for remote life detection

    Preston, Louisa and Melim, L.A. and Polyak, V.J. and Asmerom, Y. and Southam, G. (2014) Infrared spectroscopic biosignatures from hidden cave, New Mexico: possible applications for remote life detection. Geomicrobiology Journal 31 (10), pp. 929-941. ISSN 0149-0451.

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    Abstract

    Subsurface environments are known to support and preserve diverse microbial communities. Giant pool fingers from Hidden Cave, New Mexico consist of mm-scale dark micritic calcite layers alternating with clear dogtooth spar crystals and contain morphological and geochemical evidence of past microbial communities. We used Fourier Transform infrared spectroscopy to identify fatty acids, proteins, PO2-carrying compounds, and polysaccharides spatially related to morphological fossil filaments throughout the surface micritic laminations and central pool finger regions. These biomolecular signatures are important components that contribute to the biosignature suite under development that identify microbial involvement in carbonate precipitation on Earth and remotely.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): biosignatures, caves, life detection, spectroscopy
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences > UCL/Birkbeck Centre for Planetary Sciences
    Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Louisa Preston
    Date Deposited: 02 Sep 2016 14:09
    Last Modified: 30 Jul 2019 18:51
    URI: http://eprints.bbk.ac.uk/id/eprint/15858

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