| 南海新生代碳酸盐台地淹没事件记录的海底扩张 |
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| 引用本文： | 吕炳全,徐国强,王红罡,赵会民.南海新生代碳酸盐台地淹没事件记录的海底扩张[J].地质科学,2002,37(4):405-414. |
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| 作者姓名： | 吕炳全 徐国强 王红罡 赵会民 |
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| 作者单位： | 同济大学海洋地质与地球物理系, 上海, 200092 |
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| 摘 要： | 本文通过对南海4个碳酸盐台地及其淹没事件的分析来阐明南海海底扩张的演化史.南海碳酸盐台地出现在最大海底扩张期,淹没事件出现在海底扩张和地壳下降速率进一步加快时期,因而它记录了海底扩张的阶段性和不均一性.南海共经历了早中新世晚期(距今17±0.5 Ma)、晚中新世早期(距今10.0～8.2 Ma)和上新世早期(距今3.4～3.0 Ma)等3次大的淹没事件,表明南海经历了3次大的海底扩张,短暂淹没事件是与海底扩张有关的各种地质事件的反映.
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| 关 键 词： | 碳酸盐台地 淹没事件 海底扩张 南海 |
| 收稿时间： | 2001-05-31 |
| 修稿时间： | 2001年5月31日 |
SEA FLOOR SPREADING RECORDED BY DROWNING EVENTS OF CENOZOIC CARBONATE PLATFORMS IN THE SOUTH CHINA SEA |
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| L? Bingquan,Xu Guoqiang,Wang Honggang,Zhao Huimin.SEA FLOOR SPREADING RECORDED BY DROWNING EVENTS OF CENOZOIC CARBONATE PLATFORMS IN THE SOUTH CHINA SEA[J].Chinese Journal of Geology,2002,37(4):405-414. |
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| Authors: | L? Bingquan Xu Guoqiang Wang Honggang Zhao Huimin |
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| Institution: | Department of Marine Geology & Geophysics, Tongji University, Shanghai 200092 |
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| Abstract: | This paper depicted the history of sea-floor spreading by analyzing the development of four carbonate platforms and their drowning events in the South China Sea. The carbonate platforms in the studied area usually appeared in the peak stage of sea-floor spreading, while drowning events occurred during the acceleration period of sea-floor spreading and crustal subsidence. Consequently, the phase and nonuniformity of sea-floor spreading were recorded. Our study showed that the South China Sea experienced three major drowning events, namely, the late stage of Early Miocene(17 ± 0.5 Ma ago), the early stage of Late Miocene(10.0～8.2 Ma ago)and the early stage of Pliocene(3.4～3.0 Ma ago), indicating the existence of three major sea-floor spreading in the studied area. The short-term drowning events seemed to result from different kinds of geological processes related to sea-floor spreading. |
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| Keywords: | The carbonate platforms Drowning events Sea floor spreading The South China Sea |
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