Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential
Special issue Paleoenvironmental studies in the Korean Peninsula and adjacent geographic areas IV.-- 30 pages, 17 figures, 2 tables
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Elsevier
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| Subjects: | Submarine landslides, Mass transport deposits, Ulleung Basin, 2-D seismic data interpretation, East Sea, |
| Online Access: | http://hdl.handle.net/10261/130850 http://dx.doi.org/10.13039/501100002994 http://dx.doi.org/10.13039/501100003566 |
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dig-icm-es-10261-1308502019-03-05T12:32:08Z Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential Horozal, Senay Bahk, Jang Jun Lee, Sang Hoon Urgeles, Roger Kim, Seong Pil Kim, Gil Young Cukur, Deniz Lee, Gwang Hoon Ryu, Byong Jae Kim, Jin Ho Ministry of Knowledge Economy (South Korea) Ministry of Oceans and Fisheries (South Korea) Submarine landslides Mass transport deposits Ulleung Basin 2-D seismic data interpretation East Sea Special issue Paleoenvironmental studies in the Korean Peninsula and adjacent geographic areas IV.-- 30 pages, 17 figures, 2 tables Seismic reflection data from the Ulleung Basin, East Sea, provide extensive evidence for Plio-Quaternary mass transport deposits (MTDs). We identified 23 MTDs embedded in 7 MTD bearing seismic units (U1–U7, from oldest to youngest) and estimated their geometric characteristics and source areas. The thicknesses and volumes of these MTDs range between 25 m and 392 m, and 13 km3–550 km3, respectively. The depth of the acoustic basement below sea level varies between about 100 m in the western margins to over 5900 m in the central part of the basin and highlights eight structural highs in the central and southern parts of the basin. These structural highs had a major role in controlling the pathway and distribution of the MTDs in the basin. In general, the thickest MTD units are sourced from the southern parts of the basin and the volume of these MTDs has remained relatively constant throughout the Plio-Quaternary. The seismic reflection data also reveal about 50 m high slide/slump scars formed on the seafloor by the latest submarine landslides which mainly concentrate on the southern and western margins of the basin. High-sedimentation rates and pore pressure build-up are likely the predominant factor controlling initiation of slope failures in the southern margin. Tectonics and gas hydrates likely play a role, too. The initial water depth of submarine landslides and volume and runout of the MTDs originating from the southern margin imply significant geohazard to the region This study was supported by the Korea Ministry of Knowledge Economy (MKE) and by the project “International Ocean Discovery Program” funded by the Ministry of Oceans and Fisheries, Korea Peer Reviewed 2016-01 2016-04-07T10:50:37Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.quaint.2015.06.056 issn: 1040-6182 Quaternary International 392: 69-98 (2016) http://hdl.handle.net/10261/130850 10.1016/j.quaint.2015.06.056 http://dx.doi.org/10.13039/501100002994 http://dx.doi.org/10.13039/501100003566 http://dx.doi.org/10.1016/j.quaint.2015.06.056 Sí none Elsevier |
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Submarine landslides Mass transport deposits Ulleung Basin 2-D seismic data interpretation East Sea Submarine landslides Mass transport deposits Ulleung Basin 2-D seismic data interpretation East Sea |
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Submarine landslides Mass transport deposits Ulleung Basin 2-D seismic data interpretation East Sea Submarine landslides Mass transport deposits Ulleung Basin 2-D seismic data interpretation East Sea Horozal, Senay Bahk, Jang Jun Lee, Sang Hoon Urgeles, Roger Kim, Seong Pil Kim, Gil Young Cukur, Deniz Lee, Gwang Hoon Ryu, Byong Jae Kim, Jin Ho Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential |
| description |
Special issue Paleoenvironmental studies in the Korean Peninsula and adjacent geographic areas IV.-- 30 pages, 17 figures, 2 tables |
| author2 |
Ministry of Knowledge Economy (South Korea) |
| author_facet |
Ministry of Knowledge Economy (South Korea) Horozal, Senay Bahk, Jang Jun Lee, Sang Hoon Urgeles, Roger Kim, Seong Pil Kim, Gil Young Cukur, Deniz Lee, Gwang Hoon Ryu, Byong Jae Kim, Jin Ho |
| format |
artículo |
| topic_facet |
Submarine landslides Mass transport deposits Ulleung Basin 2-D seismic data interpretation East Sea |
| author |
Horozal, Senay Bahk, Jang Jun Lee, Sang Hoon Urgeles, Roger Kim, Seong Pil Kim, Gil Young Cukur, Deniz Lee, Gwang Hoon Ryu, Byong Jae Kim, Jin Ho |
| author_sort |
Horozal, Senay |
| title |
Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential |
| title_short |
Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential |
| title_full |
Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential |
| title_fullStr |
Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential |
| title_full_unstemmed |
Late Neogene-Quaternary submarine mass wasting along the margins of the Ulleung Basin, East Sea: Geomorphologic controls and geohazard potential |
| title_sort |
late neogene-quaternary submarine mass wasting along the margins of the ulleung basin, east sea: geomorphologic controls and geohazard potential |
| publisher |
Elsevier |
| url |
http://hdl.handle.net/10261/130850 http://dx.doi.org/10.13039/501100002994 http://dx.doi.org/10.13039/501100003566 |
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