Jul 1, 2005 - tomography (XMCT) was used to evaluate gas bubbles in mud, reconstituted ... In the reconstituted mud (mixture of kaolinite clay, bay mud, and.
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PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYYI 2. REPORT TYPE
01-07-2005
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Proceeding
4. TITLE AND SUBTITLE
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Morphology of gas bubbles in mud: A microcomputed tomographic evaluation
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N602782N 6. AUTHOR(S)
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Allen H. Reed, Bernard P. Boudreau, Chris Algar, Yoko Furukawa 5e. TASK NUMBER 5f. WORK UNIT NUMBER
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Naval Research Laboratory Seafloor Sciences Branch Stennis Space Center, MS 39529
NRL/PP/7430-05-5
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Office of Naval Research
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Approved for public release; distribution is unlimited
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Proceedings of the International Conference "Underwater Acoustic Measurements: Technologies & Results" Heraklion, Crete, Greece, 28th June - 1st July 2005. 14. ABSTRACT Abstract: Free gas in surficial sediments commonly forms gas bubbles that attenuate and dampen acoustic waves, influence slope stability, and contribute to greenhouse gas concentrations. Therefore, determining the mechanisms that control bubble shape, size, growth, and migration is important to acoustic sediment characterization and other disciplines. Previously, as one component of a sediment acoustic experiment, gas bubble shape, size, and distribution was quantified using "low-resolution" (-500 /an) medical cofnputed tomography (CT). Recently, "high-resolution" (to
