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    The Determination and Application of Vector Gravity Anomalies

    Access Status
    Fulltext not available
    Authors
    Featherstone, Will
    Dentith, M.
    Kirby, Jon
    Date
    2000
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Featherstone, William E. and Dentith, Michael and Kirby, Jonathan F. 2000. The Determination and Application of Vector Gravity Anomalies. Exploration Geophysics 31: pp. 109-113.
    Source Title
    Exploration Geophysics
    Additional URLs
    http://www.publish.csiro.au/nid/225/issue/4489.htm
    ISSN
    08123985
    Faculty
    Department of Exploration Geophysics
    Faculty of Science and Engineering
    WA School of Mines
    School
    Department of Spatial Sciences
    Remarks

    The link to the CSIRO Publishing home page is: http://www.publish.csiro.au/

    © 2008 CSIRO Publishing.

    URI
    http://hdl.handle.net/20.500.11937/39862
    Collection
    • Curtin Research Publications
    Abstract

    Conventional gravity measurements are only of the maximum magnitude of the gravity acceleration vector. This is because the gravimeter is aligned with the gravity vector and not in a self consistent reference frame. However, when a high-resolution geoid model is available, vector gravity data can be computed. The geoid model is used to compute the deflections of the gravity vector from the ellipsoidal normal, thus providing direction to the measured magnitude of gravity acceleration. This allows the components of the gravity vector to be computed from the gravity measurements. Since the geoid is mostly generated by deeper Earth structure, the components of the vector gravity anomaly enhance the information on deeper mass variations above that contained in the conventional gravity anomaly. This approach has been applied to the Australian gravity database and shows a number of linear features not clearly evident in conventional Bouguer gravity anomaly maps.

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