| 东海陆架盆地类型及其形成的动力学环境 |
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| 引用本文： | 张建培,张田,唐贤君.东海陆架盆地类型及其形成的动力学环境[J].地质学报,2014,88(11):2033-2043. |
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| 作者姓名： | 张建培 张田 唐贤君 |
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| 作者单位： | 中海石油(中国)有限公司上海分公司,上海,200030 |
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| 摘 要： | 东海陆架盆地位于欧亚板块东南缘,处于华南陆块(包括西部的扬子地块和东部的华夏地块)之上.其基底是华夏地块在东海陆架的延伸,也是西太平洋大陆边缘构造域的重要组成部分.从全球板块构造格局分析,东海陆架盆地处于西太平洋三角带区域,是印度-澳大利亚板块和太平洋板块与欧亚板块巨型汇聚的地带,也是全球汇聚中心,其东西两侧分别与特提斯和西太平洋构造域演化息息相关.总体来说,东海陆架盆地是“欧亚板块与太平洋板块之间的碰撞、俯冲、弧后扩张,印度-澳大利亚板块与欧亚板块之间的汇聚、碰撞、楔入的远程效应,以及地球深部动力学作用”共同叠加、复合作用形成的弧后盆地.其形成机制符合被动扩张模式,向东的地幔流和软流圈下降流是导致弧后扩张的主要地球深部动力来源.
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| 关 键 词： | 东海陆架盆地 西太平洋构造域 俯冲 被动扩张 弧后盆地 |
| 收稿时间： | 2014/6/20 0:00:00 |
| 修稿时间： | 2014/7/24 0:00:00 |
The basin type & dynamic environment, the East China Sea Shelf Basin |
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| ZHANG JIANPEI,ZHANG TIAN and TANG Xianjun.The basin type & dynamic environment, the East China Sea Shelf Basin[J].Acta Geologica Sinica,2014,88(11):2033-2043. |
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| Authors: | ZHANG JIANPEI ZHANG TIAN and TANG Xianjun |
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| Institution: | Shanghai Branch of CNOOC Ltd.,Shanghai Branch of CNOOC Ltd. |
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| Abstract: | The East China Sea Shelf Basin, located in the southeastern margin of the Eurasian plate, and at the southern China continental block (including the Yangtze block in west and the Cathaysian block in east). The basement of the East China Sea Shelf Basin is the extension part of the Cathaysian block, and is also an important part of West Pacific continental margin tectonic domain. By the analysis of global plate tectonic evolution, the East China Sea Shelf Basin is situated in the West Pacific triangle region, which is the huge convergence zone of India-Australian plate, the Pacific plate and the Eurasian plate, while also is the global convergence center. The east and west sides of the East China Sea Shelf Basin is closely related to the Tethys and the West Pacific tectonic domain evolution. Overall, the East China Sea Shelf Basin is a back-arc basin, which is controlled by the co-action of collision, subduction and back-arc spreading between the Eurasian plate and the Pacific plate and long-distance effect of the convergence, collision and extrusion between the India-Australian plate and the Eurasian plate and deep earth dynamics effect. The formation mechanism of the East China Sea Shelf Basin is according with passive extension mode. The mantle flow in east direction and the asthenosphere down flow are the main cause of the back-arc spreading power source in deep Earth. |
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| Keywords: | the East China Sea Shelf Basin the West Pacific tectonic domain subduction passive extension back-arc basin |
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