In situ velocity profiles in gassy sediments: Kiel Bay |
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| Authors: | S S Fu R H Wilkens L N Frazer |
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| Institution: | (1) Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 96822 Honolulu, Hawaii, USA;(2) Department of Geology & Geophysics, University of Hawaii at Manoa, 96822 Honolulu, Hawaii, USA |
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| Abstract: | Acoustic behavior of gas-bearing sediments is significantly different from that of gas-free sediments. In situ velocity profiles and acoustic signal characteristics in gas-bearing sediments of the upper several meters of the sea floor in Kiel Bay are presented in this study. Observed velocities in gas-bearing sediments are both higher and lower than those of the gas-free sediments. Small amounts of gas appear to cause signal reverberation without much attenuation. whereas large amounts of gas cause substantial attenuation. |
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