Seismic facies and specific character of the bottom simulating reflector on the western margin of Paramushir Island, Sea of Okhotsk

Basov, E. I., Gaedicke, Christoph, van Weering, T. C. E., Baranov, B. V., Lelikov, E. P., Obzhirov, A. I. and Belykh, I. (1996) Seismic facies and specific character of the bottom simulating reflector on the western margin of Paramushir Island, Sea of Okhotsk Geo-Marine Letters, 16 (4). pp. 297-304. DOI 10.1007/BF01245560.

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Abstract

Seismic profiles from a venting area on the western margin of Paramushir Island (Sea of Okhotsk) reveal a local complex structure and an interesting, unusual pattern of the bottom simulating reflector (BSR). The BSR is gradual rising towards the venting area. The geothermal gradient and the bottom temperature confirmed the methane hydrate. The temperature appears to be the most important factor controlling the hydrate stability. A locally higher heat flow caused the upward migration of the hydrate stability field and the subsequent degradation of the hydrated sediments, causing gas vent formation and the flux of methane gas into the water column.

Document Type: Article
Keywords: Seismic facies, bottom simulating reflector, Paramushir Island, Sea of Okhotsk
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Refereed: Yes
DOI etc.: 10.1007/BF01245560
ISSN: 0276-0460
Projects: INTAS
Date Deposited: 12 Feb 2016 09:05
Last Modified: 22 May 2017 12:09
URI: http://eprints.uni-kiel.de/id/eprint/31245

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