节点文献
东昆仑库木库里盆地的新构造运动
THE NEOTECTONIC MOVEMENT OF KUMKOLI BASIN IN EASTERN KUNLUN MT
【摘要】 <正> 东昆仑库木库里盆地位于新疆、青海及西藏三省交界的新疆一侧。晚第三纪以来的新构造运动对东昆仑库木库里盆地的形成和发育产生了深刻影响,形成现今盆地地貌的基本轮廓。一、区域地质地貌概况东昆仑库木库里盆地大地构造位置属阿尔金山大断裂以南的东昆仑地槽褶皱带。古生代早期库木库里盆地属祁昆古海范围;三叠纪末脱离海侵上升成陆,自此以后,断块运动在地
【Abstract】 Eastern Kunlun Mt.——Kumkoli basin is located at the northern edgeof Qinghai-Tibet plateau. The Neotectonic movement since Neogene has been rather strong in this area, leadiug the formation of the basic skeleton of the modern basin landform.Thick sediments of river-lake facies formed during Neogene period, of which the distribution is very difference in time and space. The sediments formed during Quaternary is thickless, but widely distributed. The action of faults, newly occurred in Neotectonic period and also the revived palaeo-faults, is rather active, and the hydrographic system is controlled by faults and arranged along the structural line in the direction of WNN There are 1-2 grade planation suface in the mountain system and 2-3 grade benches on the traverse profile of the river many rivers in the area changed their course and some river beds and lakes migrate to the direction of north and east regularly during Neotectonic period.The Neotectonic movement in this area has the characteristics of inheriting, new emerging, intermittencing of tectogenesis, with differential rising movement, and removing of sedimentary centre.The direction of the tectonic movement in the area forced by NS strike is mainly horizontal movement. The sources of this action force come from both India plate which forms a pushing force from south to north and Tarim platform which forms a special reaction force.
- 【文献出处】 新疆地质 ,Xinjiang Geology , 编辑部邮箱 ,1987年03期
- 【被引频次】1
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