Strain data recorded in Xinjiang and their bearing on Tianshan’s uplift/shortening and Tarim basin’s rotation  

作　　者：Jiang Jingxiang Wu Guodong Yin Guanghua Gao Ge Wang Zaihua Li Jie 

机构地区：[1]Earthquake Administration of Xinjiang Uygur Autonomous Region, Urumqi 830011, China

出　　处：《Geodesy and Geodynamics》2011年第1期21-28,共8页大地测量与地球动力学（英文版）

基　　金：supported by the National Natural Science Foundation of China( 40864003,40562001)

摘　　要：Based on the continuous strain data recorded in Xinjiang since 1985, we discuss the mechanisms of Tianshan＇ s uplift and Tarim basin＇ s clockwise rotation. The results indicate ： 1 ） The principal - compression directions in Tianshan are nearly NS, and their intersection angles with regional structures and mountains are nearly perpendicular, which is in accordance with Tianshan＇ s uplift and crustal shortening. 2）The principal compressions around Tarim basin tend to facilitate the regional faults＇ left-lateral strike-slip movements and the basin＇ s clockwise rotation. These phenomena of uplift/shortening and rotation are fundamentally the re- suits of India plate＇ s northward push on Euro-Asia plate, and the associated Pamir arc ＇ s rapid northward movement and regional blocks＇ interaction.Based on the continuous strain data recorded in Xinjiang since 1985, we discuss the mechanisms of Tianshan＇ s uplift and Tarim basin＇ s clockwise rotation. The results indicate ： 1 ） The principal - compression directions in Tianshan are nearly NS, and their intersection angles with regional structures and mountains are nearly perpendicular, which is in accordance with Tianshan＇ s uplift and crustal shortening. 2）The principal compressions around Tarim basin tend to facilitate the regional faults＇ left-lateral strike-slip movements and the basin＇ s clockwise rotation. These phenomena of uplift/shortening and rotation are fundamentally the re- suits of India plate＇ s northward push on Euro-Asia plate, and the associated Pamir arc ＇ s rapid northward movement and regional blocks＇ interaction.

关 键 词：continuous borehole strain measurement principal-compression direction Tianshan uplift NScrustal shortening Tarim basin＇s clockwise rotation 

分 类 号：P542[天文地球—构造地质学] S825[天文地球—地质学]