Late quaternary sedimentation in the Ulleung Interplain Gap, East Sea (Korea) SCIE SCOPUS
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, SH | - |
dc.contributor.author | Bahk, JJ | - |
dc.contributor.author | Chough, SK | - |
dc.contributor.author | Back, GG | - |
dc.contributor.author | Yoo, HS | - |
dc.date.accessioned | 2020-04-20T15:25:04Z | - |
dc.date.available | 2020-04-20T15:25:04Z | - |
dc.date.created | 2020-01-28 | - |
dc.date.issued | 2004-05-31 | - |
dc.identifier.issn | 0025-3227 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/5251 | - |
dc.description.abstract | The Ulleung Interplain Gap (UIG) is a deep (2300-2700 m) passage which has served as a conduit for deep-water circulation between the Ulleung and Japan basins. A detailed analysis of Chirp (2-7 kHz) subbottom profiles (ca. 6270 line-km) and nine sediment cores (8.6-11.4 m long) together with age data of tephra layers and four AMS C-14 from the UIG and the adjacent areas reveals complex sedimentation caused by an interaction between bottom currents and mass flows during the last- and post-glacial periods. From high-resolution subbottom data, rock basement, slide/slump/rock-fall deposits, mass-flow chutes/channels, mass-flow deposits, bottom-current deposits, and a large-scale bottom-current channel system are recognized. Core sediments consist of various deposits of turbidites, muddy contourites, manganiferous contourites, and pelagic/hemipelagic sediments. Based on vertical distribution of sedimentary facies together with a chronostratigraphic framework, core sediments can be divided into Units I (< similar to 15 ka) and 11 (> similar to 15 ka). The extensive mass-flow deposits with slope failures on the entire slopes of topographic highs around the UIG and the dominant turbidites in Unit II (> similar to 15 ka) suggest that a relatively large amount of sediment was delivered into the UIG by frequent mass flows (recurrence intervals of ca. 250-500 years in the upper Unit II) during the last-glacial period. Erosion or hampered sedimentation by bottom currents is indicated by the truncated reflectors of channel walls and muddy/manganiferous contourites in the Ulleung Interplain Channel (UIC) along the UIG. Interbedded turbidites in the UIC floor reflect that some large-scale mass flows intermittently entered into the UIC. The UIC has an asymmetric channel-flank geometry. The southeastern flank shows a gentle, wide mound morphology of mass-flow deposits derived from large-scale slope failures on the slopes of the Oki Bank, reflecting a dominance of downslope gravitational processes over alongslope bottom currents. In contrast, the northwestern flank is characterized by a narrow, steep geometry of mass-flow deposits, where a relatively small amount of sediment derived from the slopes of the South Korea Plateau could not overcome bottom-current activity. The dominant muddy and manganiferous contourites with rare turbidites in Unit I (< similar to 15 ka) reflect intensified bottom currents and infrequent slope failures (recurrence intervals of ca. 1700-5000 years) during the post-glacial period. These conditions facilitated the formation of a thin, elongate mound of bottom-current drifts overlying mass-flow deposits on the southeastern UIC flank, and sustained erosion or hampered sedimentation in the UIC. (C) 2004 Elsevier B.V. All rights reserved. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | WESTERN BOUNDARY CURRENT | - |
dc.subject | SOUTH-ATLANTIC-OCEAN | - |
dc.subject | JAPAN SEA | - |
dc.subject | VEMA CHANNEL | - |
dc.subject | DEEP-SEA | - |
dc.subject | DEPOSITIONAL SYSTEMS | - |
dc.subject | CONTINENTAL-MARGIN | - |
dc.subject | AMIRANTE PASSAGE | - |
dc.subject | CONTOURITE FAN | - |
dc.subject | PACIFIC-OCEAN | - |
dc.title | Late quaternary sedimentation in the Ulleung Interplain Gap, East Sea (Korea) | - |
dc.type | Article | - |
dc.citation.endPage | 248 | - |
dc.citation.startPage | 225 | - |
dc.citation.title | MARINE GEOLOGY | - |
dc.citation.volume | 206 | - |
dc.citation.number | 1-4 | - |
dc.contributor.alternativeName | 이상훈 | - |
dc.contributor.alternativeName | 유해수 | - |
dc.identifier.bibliographicCitation | MARINE GEOLOGY, v.206, no.1-4, pp.225 - 248 | - |
dc.identifier.doi | 10.1016/j.margeo.2004.03.004 | - |
dc.identifier.wosid | 000222257900012 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | WESTERN BOUNDARY CURRENT | - |
dc.subject.keywordPlus | SOUTH-ATLANTIC-OCEAN | - |
dc.subject.keywordPlus | JAPAN SEA | - |
dc.subject.keywordPlus | VEMA CHANNEL | - |
dc.subject.keywordPlus | DEEP-SEA | - |
dc.subject.keywordPlus | DEPOSITIONAL SYSTEMS | - |
dc.subject.keywordPlus | CONTINENTAL-MARGIN | - |
dc.subject.keywordPlus | AMIRANTE PASSAGE | - |
dc.subject.keywordPlus | CONTOURITE FAN | - |
dc.subject.keywordPlus | PACIFIC-OCEAN | - |
dc.subject.keywordAuthor | deep passage | - |
dc.subject.keywordAuthor | bottom current | - |
dc.subject.keywordAuthor | turbidity current | - |
dc.subject.keywordAuthor | debris flow | - |
dc.subject.keywordAuthor | Ulleung Interplain Gap | - |
dc.subject.keywordAuthor | East Sea (Sea of Japan) | - |
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 | - |