Distribution and origin of shallow gas in deep-sea sediments of the Ulleung Basin, East Sea (Sea of Japan) SCIE SCOPUS

DC Field Value Language
dc.contributor.author Lee, SH -
dc.contributor.author Chough, SK -
dc.date.accessioned 2020-04-21T06:26:04Z -
dc.date.available 2020-04-21T06:26:04Z -
dc.date.created 2020-01-28 -
dc.date.issued 2003-03 -
dc.identifier.issn 0276-0460 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/5541 -
dc.description.abstract A synthesis of high-resolution (Chirp, 2-7 kHz) subbottom profiles in the Ulleung Basin reveals patchy distribution of shallow (< 90 in subbottom depth) gassy sediments in the eastern basin plain below 1,800-m water depth. The shallow gases in the sediments are associated with acoustic turbidities, columnar acoustic blankings, enhanced reflectors, dome structures, and pockmarks. Analyses of gas samples collected from a piston core in an earlier study suggest that the shallow gases are thermogenic in origin. Also, published data showing high amounts of organic matter in thick sections of marine shale (middle Miocene to lower Pliocene sequence) and high heat flow in the basin plain sediments are consistent with the formation of deep, thermogenic gas. In multichannel deep seismic profiles, numerous acoustic chimneys and faults reflect that the deep, thermogenic gas would have migrated upwards from the deeper subsurface to the near-seafloor. The upward-migrating gases may have accumulated in porous debrites and turbidites (upper Pliocene sequence) overlain by impermeable hemipelagites (Quaternary sequence), resulting in the patchy distribution of shallow gases on the eastern basin plain. -
dc.description.uri 1 -
dc.language English -
dc.publisher SPRINGER-VERLAG -
dc.subject FEATURES -
dc.subject GREECE -
dc.subject KOREA -
dc.subject SHELF -
dc.subject MUDS -
dc.title Distribution and origin of shallow gas in deep-sea sediments of the Ulleung Basin, East Sea (Sea of Japan) -
dc.type Article -
dc.citation.endPage 209 -
dc.citation.startPage 204 -
dc.citation.title GEO-MARINE LETTERS -
dc.citation.volume 22 -
dc.citation.number 4 -
dc.identifier.bibliographicCitation GEO-MARINE LETTERS, v.22, no.4, pp.204 - 209 -
dc.identifier.doi 10.1007/s00367-002-0114-x -
dc.identifier.scopusid 2-s2.0-0037656228 -
dc.identifier.wosid 000182464400004 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus CONTINENTAL-MARGIN -
dc.subject.keywordPlus MARINE-SEDIMENTS -
dc.subject.keywordPlus FEATURES -
dc.subject.keywordPlus GREECE -
dc.subject.keywordPlus KOREA -
dc.subject.keywordPlus SHELF -
dc.subject.keywordPlus MUDS -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Geology -
dc.relation.journalResearchArea Oceanography -
Appears in Collections:
Marine Environmental & Climate Research Division > Marine Active Fault Research Unit > 1. Journal Articles
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