| 东海重磁地震综合探测剖面研究 |
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| 引用本文： | 高德章,赵金海,薄玉玲,唐建,王舜杰.东海重磁地震综合探测剖面研究[J].地球物理学报,2004,47(5):853-861. |
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| 作者姓名： | 高德章 赵金海 薄玉玲 唐建 王舜杰 |
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| 作者单位： | 中国石油化工股份有限公司上海海洋油气分公司研究院,上海,200120;中国石油化工股份有限公司上海海洋油气分公司研究院,上海,200120;中国石油化工股份有限公司上海海洋油气分公司研究院,上海,200120;中国石油化工股份有限公司上海海洋油气分公司研究院,上海,200120;中国石油化工股份有限公司上海海洋油气分公司研究院,上海,200120 |
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| 基金项目： | 国家高技术研究发展 ( 863 )计划资助项目 ( 82 0 -0 1-0 3 ) |
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| 摘 要： | 依据东海南部一条自东海陆架直至菲律宾海盆的重磁地震综合探测剖面，采用地壳结构重磁地震综合反演解释系统开展岩石圈结构的综合研究，制作了岩石圈结构地学断面图. 结果表明基隆凹陷为一中新生代沉积凹陷，沉积厚度达到14km；冲绳海槽盆地为弧后扩张地堑型盆地，地壳厚度仅为14.5km；菲律宾板块沿北西西方向向欧亚板块俯冲，莫霍面急剧下插，导致冲绳海槽的形成与发展；岩石圈厚度约为80km，但在370km处仅为53km，在450km至540km处岩石圈厚度大于100km.
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| 关 键 词： | 东海 重磁地震综合探测 地学断面 岩石圈 |
| 文章编号： | 0001-5733(2004)05-0853-09 |
| 收稿时间： | 2003-11-20 |
| 修稿时间： | 2004-4-23 |
A PROFILE STUDY OF GRAVITATIVE-MAGNETIC AND SEISMIC COMPREHENSIVE SURVEY IN THE EAST CHINA SEA |
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| GAO De-Zhang ZHAO Jin-Hai BO Yu-Ling Tang Jian WANG Shun-Jie Institute of Shanghai Offshore Petroleum Branch,SINOPEC,Shanghai ,China.A PROFILE STUDY OF GRAVITATIVE-MAGNETIC AND SEISMIC COMPREHENSIVE SURVEY IN THE EAST CHINA SEA[J].Chinese Journal of Geophysics,2004,47(5):853-861. |
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| Authors: | GAO De-Zhang ZHAO Jin-Hai BO Yu-Ling Tang Jian WANG Shun-Jie Institute of Shanghai Offshore Petroleum Branch SINOPEC Shanghai China |
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| Institution: | Institute of Shanghai Offshore Petroleum Branch, SINOPEC, Shanghai 200120, China |
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| Abstract: | We apply the comprehensive inversion and interpretation method of gravitative, magnetic and seismic data for crustal structure to the study of lithospheric structure beneath the East China Sea. This study is based on a gravitative-magnetic and seismic survey profile which extends from the East China Sea shelf to the Phillipine basin. As result we make geortransect map of the lithospheric structure for this area. The map shows that the Jilong depression (near Taiwan) is a Mesozoic-Cenozoic sedimentary basin where the sediment is 14km thick. The Okinawa trough basin is of the back arc extentional graben type with crustal thickness of merely 14.5km. The Phillipine plate under thrusts dives toward the Eurasia plate in NWW direction, resulting in steep Moho interface and formation and development of the Okinawa trough, where the lithosphere is about 80km thick. But at other positions on the profile, the lithospheric thickness varies. For instance it is 53km at the site 370km and more than 100km at the site from 450km to 540km on the profile. |
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| Keywords: | The East China Sea Gravity-magnetic and seismic comprehensive survey Geological transect Lithosphere |
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