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    Volume 30, Issue 4 (July 2007)

    Acoustic Compressional Wave Velocity as a Predictor of Glacio-marine Sediment Grain Size

    (Received 6 January 2006; accepted 14 December 2006)

    Published Online: 13 February 2007

    CODEN: GTJODJ

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    Abstract

    We present relationships between the nondestructive measurement of acoustic compressional wave velocity and grain size and show that velocity can be used to assess some physical properties of glacio-marine sediments. For coarse-grained sediments, an increase in velocity is associated with an increase in the percentage of this size range. Within the fine-grained sediment size range, velocity is not an accurate predictor of grain-size. A median grain size of 4 μm and a sand content of 15 % are the limiting factors that distinguish this fine-grained behavior from coarse-grained behavior. However, in fine-grained glacio-marine sediment, the percent of sand (grain size >63 μm), can be predicted by compressional wave velocity. Therefore, with further refinement, acoustic velocity shows some potential as a predictor of grain size for marine sediments.

    Author Information:

    Moran, Kathryn
    University of Rhode Island, Narragansett Bay Campus, Narragansett, RI

    Altmann, Veith
    Braunschweig University, Braunschweig,

    O’Regan, Matthew
    University of Rhode Island, Narragansett Bay Campus, Narragansett, RI

    Ashmankas, Cristin
    University of Rhode Island, Narragansett Bay Campus, Narragansett, RI


    Stock #: GTJ100228

    ISSN:0149-6115

    DOI: 10.1520/GTJ100228

    Author
    Title Acoustic Compressional Wave Velocity as a Predictor of Glacio-marine Sediment Grain Size
    Symposium ,
    Committee D18