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WHAT HAPPENS IN GAS HYDRATE-BEARING SEDIMENTS DURING/AFTER MASSIVE GAS EMISSION INTO WATER COLUMN IN THE SEA OF OKHOTSK?

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Title
WHAT HAPPENS IN GAS HYDRATE-BEARING SEDIMENTS DURING/AFTER MASSIVE GAS EMISSION INTO WATER COLUMN IN THE SEA OF OKHOTSK?
Other Titles
오호츠크해에서 해양으로 가스분출이 일어날 때 가스하이드레이트 퇴적층에서는 무슨 일이 일어나나?
Authors
Kim, Yeadong
Chung, Kyung Ho
A. Salomatin
A. Obzhirov
Jin, Young Keun
V. Gladysh
Keywords
Gas hydrates; chimney structure; gas migration; gas release; seismic structures
Issue Date
2005
Citation
Kim, Yeadong, et al. 2005. WHAT HAPPENS IN GAS HYDRATE-BEARING SEDIMENTS DURING/AFTER MASSIVE GAS EMISSION INTO WATER COLUMN IN THE SEA OF OKHOTSK?. 한국해양연구원 부설 극지연구소. 한국해양연구원 부설 극지연구소. 2005.05.17~.
Abstract
e propose a scenario to explain occurrence of two kinds of chimneys in gas hydrate-bearing sediments: (1) As warm fluid with gas is migrating upward into seafloor along the fault, the area around the fault become non-gas hydrate stability condition around the fault. Gas/fluid migrating along the fault saturates diffusely into adjacent sedimentary layers, which forms relatively wide ER chimney with enhanced reflection along the fault. (2) After stoppage of warm fluid supply, the ER chimney comes back under gas hydrate stability condition as inner temperature decreases. Thus gas in the chimney is converted into gas hydrates. Focused saturation of gas hydrates along the fault makes the narrow WO chimney. (3) New ER chimney is formed at the sites where gas/fluid is migrating upward along other path.
URI
http://repository.kopri.re.kr/handle/201206/7594
Conference Name
한국해양연구원 부설 극지연구소
Conference Place
한국해양연구원 부설 극지연구소
Conference Date
2005.05.17~
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