Collaborative Research: Deep Seismic Investigation of Continental Collision in Southern Tibet (INDEPTH II)

小行星9316132纳尔逊 继1992年夏季成功完成西藏深地震剖面试验研究（INDEPTH I）之后， 研究的下一阶段（INDEPTH II）涉及采集和分析大约200公里的深层地震反射剖面，以及补充的广角和离线（稀疏三维）反射数据和地表地质信息，沿着一条横贯北方特提斯喜马拉雅山脉、印度河-西藏藏坡缝合带和西藏南部冈底斯岩基的导线。 所获得的数据将提供新的和可能的基本了解大陆地壳的变形和增厚的机制，喜马拉雅/青藏高原碰撞带-地球上的活动大陆/大陆碰撞的典型例子。 该项目将与中国地质矿产部合作，按照费用平等分摊的原则进行，并将使用中国地质矿产部地震反射工作队进行数据采集，并为广角和离线记录提供地震源。 在美国方面，该计划将直接赠款康奈尔大学和锡拉丘兹大学进行总体项目协调和数据采集/处理，并资助斯坦福大学进行广角/离线记录。 来自哥伦比亚大学和位于奥尔巴尼的纽约州立大学的调查人员也将参与数据解释、与MGMR的协调以及沿着断面的地表地质数据的采集。 ***

9316132 Nelson Following the successful completion in the summer of 1992 of a pilot study (INDEPTH I) of deep seismic profiling in Tibet, the next phase of the study (INDEPTH II) involves the acquisition and analysis of some 200 km of deep seismic reflection profile, together with complementary wide-angle and off-line (sparse 3-D) reflection data, and surface geological information, along a traverse extending across the northern Tethyan Himalaya, Indus- Tsangpo suture zone, and Gangdese batholith in southern Tibet. The acquired data will provide new and possibly fundamental insight into the mechanism by which continental crust is deformed and thickened within the Himalaya/Tibet plateau collision zone-the type example of active continent/continent collision on Earth. The project will be undertaken collaboratively with the Ministry of Geology and Mineral Resources of China (MGMR) on the principle of equal cost sharing, and will use an MGMR seismic reflection crew for data acquisition and to provide the seismic source for wide-angle and off-line recording. On the U.S. side, the program will involve direct grants to Cornell and Syracuse Universities for overall project coordination and data acquisition/processing, and to Stanford University for wide- angle/off-line recording. Investigators from Columbia University and the State University of New York at Albany will also be involved in data interpretation, coordination with MGMR, and acquisition of surface geological data along the transect. ***