동해 울릉분지에서의 가스 생성

Title
동해 울릉분지에서의 가스 생성
Alternative Title
Occurrence of Gas in the Ulleung Basin, East Sea
Author(s)
유해수; 김한준; 민동주; M.Kumar
KIOST Author(s)
Kim, Han Joon(김한준)
Publication Year
2006-09-15
Abstract
we interpreted high-resolution and multichannel profiles in conjuction with sea floor images and sediment cores to investigate the occurrence of shallow gas in the southern Ulleung Basin in the East Sea. Acoustic anomalies and gas seepages are revealed on sea floor images and seismic profiles. Gas samples from cored sediment consist entirely of methane. These features indicate wide occurrence of methane gas in sediments. The slope area at southern margin of the Ulleung Basin is characterized by deformed structure associated with expansion of gas. The slope base of the Oki Bank shows various acoustic anomalies created by gas such as acoustic turbidity, acoustic void, and mounds. Locally, the top of acoustic turbidity forms a bottom simulating reflector with reversed polarity on seismic profiles. We suggest that the occurrence of highly concentrated gas caused the secondary structural deformation of sediments.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/30905
Bibliographic Citation
한국물리탐사학회 특별심포지엄, pp.127 - 139, 2006
Publisher
한국물리탐사학회
Type
Conference
Language
English
Publisher
한국물리탐사학회
Related Researcher
Research Interests

Marine Geophysics,Marine Active Fault Study,Exploration Seismology,해양지구물리,해저단층연구,탄성파탐사

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