Abstract
High-resolution profiles obtained in the northern Adriatic Sea with a Uniboom (EG&G) sub-bottom profiling system revealed peculiar acoustic features down to a depth of about 70 m below the sediment surface. Several different structures due to high gas contents are described and explained for the first time in the northern Adriatic. They range from the so-called “basin effect” and cone-like structures to acoustic voids. Gas seeping from the bottom has also been observed. The abrupt disappearance of acoustically significant horizons is discussed, and a tentative explanation is given. Possible migration of gases and trapping effect are also discussed. The importance of high--quality, high-resolution recording is stressed in order to detect the anomalies — due to gases — in the sea floor, and to evaluate their potential as geologic hazards for offshore installations.
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© 1980 Plenum Press, New York
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Stefanon, A. (1980). The Acoustic Response of Some Gas-Charged Sediments in the Northern Adriatic Sea. In: Kuperman, W.A., Jensen, F.B. (eds) Bottom-Interacting Ocean Acoustics. NATO Conference Series, vol 5. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-9051-0_5
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DOI: https://doi.org/10.1007/978-1-4684-9051-0_5
Publisher Name: Springer, Boston, MA
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