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首页> 外文会议>International Symposium on the Jurassic Boundary Events and the Annual Symposium of the International Geoscience Program IGCP 506: Marine and Non-Marine Jurassic; 20051101-04; Nanjing(CN) >Main Jurassic geological events along the eastern Paleo-Asian continental margin
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Main Jurassic geological events along the eastern Paleo-Asian continental margin

机译：东亚古大陆边缘的主要侏罗纪地质事件

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摘要

The Jurassic is a period of intensive accretion along the eastern and southeastern margins of the Asian continent. The emphasis of the present study is the review of the Jurassic prism structure of the Russian Far Eastern Pacific Asian margin and comparison with its equivalent in the Japanese archipelago. The Jurassic accretion processes and geodynamic evolution of the Paleo-Asian continent eastern margins are outlined in the paper. During this period, the different ages and different facies fragments of the Paleo-Pacific, such as abyssal plain, intraoceanic volcanic seamountains and oceanic plateaux, were accreted onto the eastern margin of the Paleo-Asian continent as a result of step-wise subduction of oceanic lithosphere. Together with ocean-margin terrigenous deposits (trench-fill turbidites), these paleooceanic fragments formed a thick tectono-sedimentary complex of the Jurassic accretionary prism, causing the size of the continent to be expanded by an increase along its eastern margin.
机译：侏罗纪是亚洲大陆东部和东南边缘密集积聚的时期。本研究的重点是对俄罗斯远东太平洋亚洲边缘的侏罗纪棱镜结构进行回顾，并与日本群岛中的侏罗纪棱镜结构进行比较。本文概述了古亚洲大陆东部边缘的侏罗纪增生过程和地球动力学演化。在此期间，由于逐步俯冲作用，古太平洋的不同年龄和相相碎片（如深海平原，洋内火山海山和海洋高原）被吸积到古亚洲大陆的东缘。海洋岩石圈。这些古洋碎屑与海洋边缘陆源性沉积物（海沟充填的浊积岩）一起形成了侏罗纪增生棱柱体的厚构造-沉积复合体，使该大陆的面积沿其东缘增加而扩大。

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