| 造山带与沉积盆地的耦合——以青藏高原周边造山带与盆地为例 |
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| 引用本文： | 刘德民,李德威.造山带与沉积盆地的耦合——以青藏高原周边造山带与盆地为例[J].西北地质,2002,35(1):15-21. |
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| 作者姓名： | 刘德民 李德威 |
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| 作者单位： | 中国地质大学,湖北,武汉,430074 |
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| 摘 要： | 通过系统分析青藏高原周边造山带与沉积盆地的结构样式、变形特征及形成演化，认为该区中、新生代造山带与盆地之间存在极其明显的耦合关系，主要表现在：(盆)伸展扩张—(山)收缩隆升；(盆)挤压俯冲—(山)挤压仰冲；(盆)负荷沉降—(山)卸荷隆升；(盆)挤压挠曲、顺层滑脱—(山)侧向扩展、逆冲推覆。盆山耦合作用造成造山带具有厚皮构造的厚壳薄幔，盆地具有薄皮构造的薄壳厚幔的岩石圈结构。
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| 关 键 词： | 造山带 沉积盆地 盆山耦合 |
| 文章编号： | 1009-6248(2002)01-0015-07 |
| 修稿时间： | 2001年9月20日 |
The coupling relationship between the orogens and the sedimentary basins——An example from Qinghai-Tibet plateau and its surrounding basins |
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| LIU De-min,LI De-wei.The coupling relationship between the orogens and the sedimentary basins——An example from Qinghai-Tibet plateau and its surrounding basins[J].Northwestern Geology,2002,35(1):15-21. |
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| Authors: | LIU De-min LI De-wei |
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| Abstract: | Based on the former's researchers, this paper presents the coupling relationship between orogenic belts and their margin sedimentary basins by the means of analyzing the tectonic framework, lithosphere texture evolution and so on. This article puts forward a coupling model as the following:Basin extends and expands while mountain contracts and lifts; Basin subducts while mountain over pushes; Basin depresses with loading while mountain uplifts with unloading; Basin is curved by pressure then slides away down the laminar while mountain extands sideway then thrusts and nappes up. The coupling action causes mountains thick-skinned structure of thick crust and thin mantle, at the same time causes basin's thin-skinned structure of thin crust and thick mantle. |
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| Keywords: | orogenic belt sedimentary basin coupling |
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