Back-arc rifting in the Korea Plateau in the East Sea (Japan Sea) and the separation of the southwestern Japan Arc from the Korean margin SCIE SCOPUS

Cited 17 time in WEB OF SCIENCE Cited 17 time in Scopus
Title
Back-arc rifting in the Korea Plateau in the East Sea (Japan Sea) and the separation of the southwestern Japan Arc from the Korean margin
Author(s)
Kim, Han-Joon; Lee, Gwang Hoon; Choi, Dong-Lim; Jou, Hyeong-Tae; Li, Zhiwei; Zheng, Yong; Kim, Gil-Young; Lee, Sang-Hoon; Kwon, Yi K.
KIOST Author(s)
Kim, Han Joon(김한준)Lee, Sang Hoon(이상훈)
Publication Year
2015-01-07
Abstract
The South Korea Plateau is a remnant of continental crust in the middle of the eastern Korean margin that was deformed by extension in association with back-arc rifting and separation of the southwestern Japan Arc in the Cenozoic. Multichannel seismic profiles show that the South Korea Plateau preserves structure of rift basins flanked by uplifted footwall blocks. Rift basins in the plateau are filled with distinct syn- and post-rift sequences separated by a prominent breakup unconformity resulting from uplift. The crustal and upper mantle structures computed by ambient noise tomography indicate that the South Korea Plateau defines the seaward limit of rifted continental crust; in addition, rifting occurred with vigorous asthenospheric upwelling induced along the Korean margin and depth-dependent stretching. Therefore, the South Korea Plateau underwent the entire sequence of tectonic events typical of a passive continental margin encompassing rifting with subsidence, uplift, erosion, and breakup prior to the separation of the southwestern Japan Arc. Breakup at the Korean margin may substantiate successive episodes of back-arc spreading which migrated toward the arc in response to trench retreat. We suggest that the southwestern Japan Arc moved to its present location from the southern part of the Korean margin with a significant amount of clockwise rotation during back-arc spreading. (C) 2014 Elsevier B.V. All rights reserved.
ISSN
0040-1951
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2547
DOI
10.1016/j.tecto.2014.11.003
Bibliographic Citation
TECTONOPHYSICS, v.638, pp.147 - 157, 2015
Publisher
ELSEVIER SCIENCE BV
Subject
VELOCITY STRUCTURE; CRUSTAL STRUCTURE; STRUCTURE BENEATH; ULLEUNG BASIN; EVOLUTION; TOMOGRAPHY; BREAKUP
Keywords
South Korea Plateau; Breakup unconformity; Back-arc rifting; Asthenospheric upwelling
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

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

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