Crustal structure of the Gunsan Basin in the SE Yellow Sea from ocean bottom seismometer (OBS) data and its linkage to the South China Block SCIE SCOPUS

Cited 8 time in WEB OF SCIENCE Cited 11 time in Scopus
Title
Crustal structure of the Gunsan Basin in the SE Yellow Sea from ocean bottom seismometer (OBS) data and its linkage to the South China Block
Author(s)
Kim, Han-Joon; Kim, Chung-Ho; Hao, Tianyao; Liu, Lihua; Kim, Kwang-Hee; Jun, Hyunggu; Jou, Hyeong-Tae; Moon, Sunghoon; Xue, Ya; Wu, Zhiqiang; Lu, Chuanchuan; Lee, Sang Hoon
KIOST Author(s)
Kim, Chung Ho(김충호)Jou, Hyeong Tae(주형태)Moon, Seonghoon(문성훈)Lee, Sang Hoon(이상훈)
Alternative Author(s)
김한준; 김충호; 전형구; 주형태; 문성훈; 이상훈
Publication Year
2019-08-15
Abstract
Two major tectonic units in NE Asia are the Sims-Korean (or North China) and South China Blocks that collided in the Permo-Triassic periods. The South China Block is suggested to extend eastward to the Korean Peninsula across the southern Yellow Sea. The Gunsan Basin is a well-defined, fault-bounded sedimentary basin in the SE Yellow Sea and is regarded as a structural link of the South China Block to the Korean Peninsula. We collected deep seismic sounding data recorded on ocean bottom seismometers to investigate how the crustal structure and nature of the South China Block vary in the Gunsan Basin toward the middle part of the Korean Peninsula. The main part of the Gunsan Basin is underlain by relatively thin (similar to 10 km thick) upper and much thicker (similar to 20 km thick) lower crustal layers, indicating a close affinity to the South China Block; whereas it shows distinction from the Korean Peninsula underlain by upper and lower crustal layers with equal (similar to 15 km) thickness. A change in crustal structure is recognized under the eastern margin of the Gunsan Basin toward the Korean Peninsula, that features a transition to the Korean Peninsula. The thick lower crustal layer in the Gunsan Basin appears to be inherited from the evolution of the South China Block including crustal shortening associated with the assembly of Rodinia in the Neoproterozoic before the collision between the Sino-Korean and South China Blocks.
ISSN
1367-9120
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/547
DOI
10.1016/j.jseaes.2019.103881
Bibliographic Citation
JOURNAL OF ASIAN EARTH SCIENCES, v.180, 2019
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
PB ZIRCON AGES; CATHAYSIA BLOCKS; TECTONIC EVOLUTION; NORTH CHINA; TAN-LU; YANGTZE; KOREA; EASTERN; FAULT; AREA
Keywords
Yellow Sea; Gunsan Basin; Crustal structure; South China Block; Rodinia
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
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