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    Source-dependent frequency content of ultrashallow seismic reflection data

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    SteeplesD_BSSA_90(2)494.pdf (193.4Kb)
    Issue Date
    2000-04-01
    Author
    Baker, Gregory S.
    Steeples, Don W.
    Schmeissner, Chris M.
    Spikes, Kyle T.
    Publisher
    Seismological Society of America
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Published Version
    http://bssa.geoscienceworld.org/content/90/2/494
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    Abstract
    Seismic surveying within the upper few meters of the Earth's shallow subsurface requires a high-frequency source. To ascertain the important features of such sources, experiments were conducted at test sites in central and eastern Kansas using various impulsive seismic sources (4.5-kg hammer, 30.06 rifle, and .22-caliber rifle) to examine the effects of minimizing source energy on the frequency content of reflection data. Results indicate that the higher energy near-surface seismic-reflection sources (e.g., sledgehammer, large-caliber projectiles) lack some of the high-frequency energy exhibited by smaller sources, precluding the detection of reflection signal from ultrashallow depths (<3 m) at the sites tested. At the test site in eastern Kansas, the .22-caliber rifle yielded more energy above 250 Hz than either the sledgehammer or 30.06 rifle. At the test site in central Kansas, where three reflective interfaces shallower than 3 m exist, the .22-caliber rifle with subsonic ammunition yielded the largest amount of energy at frequencies above 300 Hz and produced the best data.
    Description
    This is the publisher's version, also available electronically from "bssa.geoscienceworld.org".
    URI
    http://hdl.handle.net/1808/17254
    ISSN
    0037-1106
    Collections
    • Geology Scholarly Works [245]
    Citation
    Baker, G., Steeples, D., Schmeissner, C., & Spikes, K. (2000). Source-Dependent Frequency Content of Ultrashallow Seismic Reflection Data. Bulletin of the Seismological Society of America, 90(2), 494-499.

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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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