When did Extrusion of the Tibetan Plateau Initiate and How Much Has Occurred? Geological Investigation of the Western Kunlun Shan, Western China

9614664尹 亚洲对印度与亚洲的碰撞的反应有两种模式。 在挤压模型中，会聚是通过西藏西部向印度板块东部的侧向挤压来适应的，而在地壳增厚模型中，则调用南北缩短和增厚来适应会聚。 喀喇昆仑和阿尔金活动断裂一直被认为是侧向挤压型断裂的候选者。 然而，关于这些断层上滑动的时间和幅度的不确定性排除了对横向挤压与地壳增厚构造的相对重要性的定量评估。 该项目是一个绘图，地质年代学和古地磁的努力，以建立这些重要的断层滑动历史。 结果预计将提供一个定量评估这些模型的适用性，印度-亚洲碰撞。

9614664 Yin Two models for the response of Asia to the collision between Indian and Asia are current. In the extrusion model, convergence is accommodated by lateral extrusion of western Tibet moving out of the way to the east of the Indian plate, whereas in the crustal thickening model invokes north-south shortening and thickening to accommodate convergence. The active Karakorum and Altyn Tagh faults have long been identified as candidates for the lateral extrusion model faults. However, uncertainly about timing and magnitude of slip on these faults has precluded quantitative evaluation of the relative importance of lateral extrusion vs. crustal thickening tectonics. This project is a mapping, geochronologic and paleomagnetic effort to establish slip history for these important faults. Results are expected to provide a quantitative evaluation of the applicability of these models for the Indo-Asian collision.