STUDY ON THE EXTENSION HISTORY OF THE OKINAWA TROUGH BY A TWO-LAYER EXTENSION MODEL
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摘要: 本文根据冲绳海槽的地质地球物理资料,利用双层拉张模式计算了冲绳海槽形成过程中的两次拉张在岩石圈厚度、地壳厚度、地表热流值、构造沉降和热沉降以及地温场方面的反映。讨论了各类参数之间的相互关系,估算了各类参数对计算结果的影响。计算的结果为认识冲绳海槽拉张史提供了重要的线索。Abstract: Based on the geologic and geophysical data of the Okinawa Trough,the reflection of two times of extension during the forming of the Okinawa Trough in the thickness of lithosphere,the thickness of Earth's crust,the heat flow value of Earth's surface,tectonic subsidence and thermal subsidence as well as geotemperature field is calculated by a two-layer extension model.Besides,the interrelation among parameters is discussed,and effect of each type of parameters on the calculated results is estimated.These results have provided important clues for understanding the extension history of the Okinawa Trough.
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[1] 张渝昌等.中国含油气盆地分析.南京:南京大学出版社,1997. [2] 金翔龙.东海海洋地质.北京:海洋出版社,1992. [3] 金翔龙等.冲绳海槽地壳结构性质的初步探讨,海洋与湖沼,1983,14(2):105～116. [4] 金翔龙等.冲绳海槽反射地震的结构特征,海洋与湖沼,1985,16(6):481～487. [5] 喻普之.李乃胜.东海地壳热流.北京:海洋出版社,1992. [6] 吉川雅英.琉球弧和冲绳海槽发育史——尤其是冲绳海槽的形成年代,海洋地质译丛,1992,(4). [7] 刘光鼎.中国海区及邻域地质-地球物理系列图,北京:地质出版社.1992. [8] 许薇龄等,东海的构造运动及演化,海洋地质与第四纪地质.1988,8(1),9～21. [9] McKenzie.D,Someremarks on the development of sedimentary basins,Earth and Planetary S ci.Letts.1978,40,25～32. [10] Royden.L.and keen.C E.Rifting process and thermal evolution of the continental margins of eastern Canada determined from subsidence curves,Earth and Planetary Sci.Letts.1980,51.139～162. [11] Sclater et al,The formation of the intra-Carpathian basins as determined from subsidence data,Earth and Planetary Sci,Letts.vol.51,p.139-162,1980 -
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