| 天山西段岩石圈深部结构及其与南北盆地构造关系 |
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| 引用本文： | 鲁新便,张云智,王新维,杨卫东,李冰.天山西段岩石圈深部结构及其与南北盆地构造关系[J].新疆地质,1998(4). |
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| 作者姓名： | 鲁新便 张云智 王新维 杨卫东 李冰 |
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| 摘 要： | 根据深部地球物理资料 ,将天山造山带划分为三个不同的构造单元 ,各构造区岩石圈结构表现各异。天山西段岩石圈深部广泛存在低速 (高导 )层 ,它是构成天山地壳“扇状”构造样式的物理基础。天山的软流圈深度浅于南北两侧 ,它具有较高密度的上地幔物质和较深山根。它与南北盆地的深部构造关系为陆内俯冲关系 ,天山岩石圈的深部结构特征 ,与其所处地球动力学环境和中亚地壳组成不均一性有关
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| 关 键 词： | 天山造山带 岩石圈 盆地 构造关系 |
DEEP STRUCTURESOF LITHOSPHERE IN WESTERN TIANSHAN AND ITSSTRUCTURAL RELATIONSHIP TO ADJACENT BASINS |
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| L u Xinbian Zhang Yunzhi Wang Xinwei,Yang Weidong L i Bing.DEEP STRUCTURESOF LITHOSPHERE IN WESTERN TIANSHAN AND ITSSTRUCTURAL RELATIONSHIP TO ADJACENT BASINS[J].Xinjiang Geology,1998(4). |
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| Authors: | L u Xinbian Zhang Yunzhi Wang Xinwei Yang Weidong L i Bing |
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| Abstract: | According to the deep geophysical data,Tianshan orogenic belt is divided into three different tectonic unites,each of them has differentlithospheric structure,The low velocity( high conductivity) zones are widely developed in deeper lithosphere of Tianshan,which are physical basis for deformation style with a fan in upper crust of Tianshan.asthenospheric depth of Tianshan is lower than that of Tarim and Junggar basins, it has an upper mentle and a deeper mountain root with higher density.Relationship of intracontinertal subduction between Tianshan and its adjoining basins is made.Structural features of lithosphere in Tianshan are not only related to geodynamic setting but also to unhomogenites of crustal composition in central Asia |
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| Keywords: | Tianshan orogenic belt lithosphere basin structural relationship |
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