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    Seismic reflections from depths of less than two meters

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    SteeplesD_GRL_26(2)279.pdf (539.6Kb)
    Issue Date
    1999-01-01
    Author
    Baker, Gregory S.
    Schmeissner, Chris M.
    Steeples, Don W.
    Plumb, Richard G.
    Publisher
    American Geophysical Union
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    Three distinct seismic reflections were obtained from within the upper 2.1 m of flood-plain alluvium in the Arkansas River valley near Great Bend, Kansas. Reflections were observed at depths of 0.63, 1.46, and 2.10 m and confirmed by finite-difference wave-equation modeling. The wavefield was densely sampled by placing geophones at 5-cm intervals, and near-source nonelastic deformation was minimized by using a very small seismic impulse source. For the reflections to be visible within this shallow range, low seismic P-wave velocities (<300 m/s) and high dominant-frequency content of the data (∼450 Hz) were essential. The practical implementation of high-resolution seismic imaging at these depths has the potential to complement ground-penetrating radar (GPR), chiefly in areas where materials exhibiting high electrical conductivity, such as clays, prevent the effective use of GPR. Potential applications of these results exist in hydrogeology and environmental, Quaternary, and neotectonic geology.
    Description
    This is the publisher's version, also available electronically from "http://onlinelibrary.wiley.com".
    URI
    http://hdl.handle.net/1808/17259
    DOI
    https://doi.org/10.1029/1998GL900243
    ISSN
    0094-8276
    Collections
    • Geology Scholarly Works [245]
    Citation
    Baker, G., Schmeissner, C., Steeples, D., & Plumb, R. (1999). Seismic reflections from depths of less than two meters. Geophysical Research Letters, 26(2), 279-282, http://www.dx.doi.org/10.1029/1998GL900243

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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