Lateral evolution of the rift-to-drift transition in the South China Sea: Evidence from multi-channel seismic data and IODP Expeditions 367&368 drilling results
文献类型：期刊论文
| 作者 | Ding, Weiwei6; Sun, Zhen7; Mohn, Geoffroy1; Nirrengarten, Michael1; Tugend, Julie2,4; Manatschal, Gianreto3; Li, Jiabiao |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2020 |
| 卷号 | 531页码:115932 |
| 关键词 | rift-to-drift transition tectono-magmatic processes breakup South China Sea IODP Expedition 367&368 |
| ISSN号 | 1385-013X |
| DOI | 10.1016/j.epsl.2019.115932 |
| 英文摘要 | The South China Sea margins represent a critical natural laboratory to study the processes and parameters controlling the rift-to-drift transition. High quality seismic data previously suggested the occurrence of a relatively sharp transition between the continental and oceanic domains, a hypothesis recently validated by the results of the IODP Expedition 367&368 drilled in the northern South China Sea distal margin. Drilling results in this transition cored Mid-Ocean Ridge type basaltic basement (Site U1502), while its lateral equivalent showed continental affinities (Site U1499). Seismic data document the lateral evolution of this narrow transition zone (similar to 15 to 25 km wide) and tectono-magmatic context related to breakup. A short-period magmatic event occurred during the latest stage of continental rifting and intruded the edge of the thinned continental crust, triggering crustal breakup and onset of steady-state seafloor spreading. The architecture of the transitional domain documented in this work is in marked contrast with those interpreted as either magma-starved or magma-rich at breakup time, suggesting that the continental margin of the SCS is intermediate between the classical end-member magmatic archetypes. We propose that the magmatic event triggering continental breakup is related to decompression melting linked to the ascending asthenosphere. It is assumed that this event was rapid at geological time scale (<10 Ma) and was favored by a high mantle temperature. (C) 2019 The Author(s). Published by Elsevier B.V. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18582]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Peoples R China 2.Univ Cergy Pontoise, Maison Int Rech, Lab Geosci & Environm Cergy GEC, F-95000 Paris, France 3.CSTJF, Total SA, R&D Dept, F-64000 Pau, France 4.Sorbonne Univ, CNRS, INSU, Inst Sci Terre Paris,ISTeP UMR 7193, F-75005 Paris, France 5.Univ Strasbourg, Inst Phys Globe Strasbourg, Strasbourg CNRS, F-67084 Strasbourg, France 6.State Ocean Adm, Inst Oceanog 2, Key Lab Submarine Geosci, Minist Nat Resources, Hangzhou 310012, Peoples R China 7.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 20030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Weiwei,Sun, Zhen,Mohn, Geoffroy,et al. Lateral evolution of the rift-to-drift transition in the South China Sea: Evidence from multi-channel seismic data and IODP Expeditions 367&368 drilling results[J]. EARTH AND PLANETARY SCIENCE LETTERS,2020,531:115932. |
| APA | Ding, Weiwei.,Sun, Zhen.,Mohn, Geoffroy.,Nirrengarten, Michael.,Tugend, Julie.,...&Li, Jiabiao.(2020).Lateral evolution of the rift-to-drift transition in the South China Sea: Evidence from multi-channel seismic data and IODP Expeditions 367&368 drilling results.EARTH AND PLANETARY SCIENCE LETTERS,531,115932. |
| MLA | Ding, Weiwei,et al."Lateral evolution of the rift-to-drift transition in the South China Sea: Evidence from multi-channel seismic data and IODP Expeditions 367&368 drilling results".EARTH AND PLANETARY SCIENCE LETTERS 531(2020):115932. |
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来源：南海海洋研究所
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