Collaborative Research: Slip Magnitude, Slip Rate, and Slip Distribution Along the Altyn Tagh Fault System, Northern Tibet

藏北阿尔金-塔格断裂具有独特的构造特征，其运动学历史的建立对了解印亚碰撞的演化具有重要意义。这一特征可以说是地球上最大的活动陆内走滑断层系统，也是已提出的描述大陆变形的力学行为的两个端元模型的焦点：分布缩短和侧向挤压。该项目涉及一项为期四年的地质、地质年代学和地球物理综合调查，重点是确定阿尔金断裂在1000万年至4年的时间尺度上滑动的规模、速率和分布。主要调查人员将利用地质填图和地质年代学来确定穿透点，利用古地磁分析来调查沿断层的几个可能的造山斜褶皱，进行GPS测量以确定沿断裂带的滑动速率、滑动分布和锁定深度，并利用地貌特征的填图和宇宙学测年来建立第四纪滑动速率。***

9725599 Yin The Altyn Tagh fault in northern Tibet has unique characteristics that make establishing its kinematic history pivotal to understanding the evolution of the Indo-Asian collision. This feature, arguably the largest active intracontinental strike-slip fault system on Earth, is a focal point in both end-member models that have been proposed to describe the mechanical behavior of continental deformation: distributed shortening and lateral extrusion. This project involves a four year, integrated geological, geochronological and geophysical investigation that will focus on the determination of the magnitude, rate, and distribution of slip on the Altyn Tagh fault at time scales between 10,000,000 years to 4 years. The principal investigators will utilize geologic mapping and geochronology to establish piercing points, use paleomagnetic analysis to investigate several possible oroclinal folds along the fault, undertake a GPS survey to establish the slip rate, slip distribution and locking depth along the fault zone, and use mapping and cosmogenic dating of geomorphological features to establish Quaternary slip rates. ***