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Spreading ridge-trench interaction on the continental marginaround Anvers Island, Antarctic Peninsula

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Title
Spreading ridge-trench interaction on the continental marginaround Anvers Island, Antarctic Peninsula
Other Titles
남극반도 엔버스섬 부근 대륙주변부에서의 확장해령과 해구의 상호작용
Authors
Hong, Jong Kuk
Jin, Young Keun
Subject
Geology
Keywords
Antarctic Peninsula; continental margin; ridge-trench collision; tectonic; seismic
Issue Date
2007
Citation
Hong, Jong Kuk, Jin, Young Keun. 2007. "Spreading ridge-trench interaction on the continental marginaround Anvers Island, Antarctic Peninsula". The Geological Society Of Korea, 43(4): 315-321.
Abstract
Using seismic data obtained on the Antarctic Peninsula continental margin around Anvers Island, we examined effect of spreading ridge-trench collision to tectonic evolution in the margin. The mid-shelf basement high (MSBH) formed by thermal effect of the subducted ridge had played a role in controlling continental shelf and slope morphology and sedimentation. From southwest to northeast in the study area, the width of MSBH generally increases, whereas the width of shelf sedimentary basin and the dip of continental slope decreases. Near the C Fracture Zone, it is interpreted that the high MSBH formed by recent thermal uplift could have blocked seaward advance of glacial sedimentary process.
URI
http://repository.kopri.re.kr/handle/201206/6660
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