摘要
西藏冈底斯东段位于青藏高原冈底斯—念青唐古拉板片中段,限定于班公湖—怒江板块缝合带和雅鲁藏布江板块缝合带之间的中生代构造盆地。盆地南北向张性断裂带是板块超碰撞期活动最强烈的构造带。地震、地热和岩浆活动以及控制的线性地貌十分明显。南北向构造带的南北向延伸、东西向展布、切割深度、活动强度的规律性和差异性,充分反映了新构造活动期高原隆升过程中地壳褶缩叠覆、物质侧向滑移和弹滞应变的构造活动特点。
The eastern sector of the Gangdise Mountains, Tibet, is located in the central segment of the Gangdise-Nyainqêntanglha slab on the Qinghai-Tibet Plateau, in a Mesozoic tectonic basin between the Bangong-Nujiang River plate suture zone and Yarlung Zangbo plate suture zone. The north south trending tensional fault zone in the basin was the most active tectonic belt during the plate over collision. Seismic, geothermal and magmatic activities and linear geomorphological features under control are well displayed in the area. The regularities and differences of the north south extension and east west propagation, cutting depth and activity intensity of the north south trending tectonic belt fully reflect the characteristics of the tectonic activities such as crustal folding, constriction and overlapping, lateral material slide and elastic lag strain in the process of the uplift of the plateau in the stage of neotectonic movements.
出处
《中国区域地质》
CAS
CSCD
北大核心
2001年第4期392-397,共6页
Regional Geology of China
基金
原地矿部"九五"重大基础项目(9501101-05)。
