THE FATE OF GAS MIGRATION PATHS IN GAS HYDRATE-BEARING SEDIMENT IN THE SEA OF OKHOTSK
- THE FATE OF GAS MIGRATION PATHS IN GAS HYDRATE-BEARING SEDIMENT IN THE SEA OF OKHOTSK
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- 오호츠크해 가스수화물 함유퇴적층에 발달한 가스이동통로의 변화
- Salomatin A
Chung, Kyung Ho
Jin, Young Keun
- Okhotsk Sea; gas chimney; gas hydrate; migration paths
- Issue Date
- Salomatin A, et al. 2006. THE FATE OF GAS MIGRATION PATHS IN GAS HYDRATE-BEARING SEDIMENT IN THE SEA OF OKHOTSK. VNIIOkeangelogia. VNIIOkeangelogia. 2006.06.19~.
- Many active gas and fluid venting sites at the seafloor and gas flares in the water column have been
detected in the Sea of Okhotsk where massive gas hydrate deposits have been found (Ginsburg et al.,
Matveeva et al, 2003, Biebow et al. 2003). In the NE continental margin off Sakhalin Island, we
simultaneously collected both high-resolution seismic and hydroacoustic data along the survey lines to
examine fine-scale seismic structures of gas hydrate-bearing sediments and ongoing gas-emission
features in the water column, respectively. Correlation of those two data sets enables us uniquely to
investigate migration paths of methane in gas hydrate-bearing sediments directly associated with
ongoing methane releases into the water column. We present here a model of the evolution of the gas
chimney during and after large-scale gas release occurs in the water column.
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