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

合作研究：藏南大陆碰撞深震调查（INDEPTH II）

• 批准号: 9316132
• 负责人: K Nelson
• 金额: $ 138.09万
• 依托单位: Syracuse University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-01 至 1998-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316132&HistoricalAwards=false
• 关键词: Collaborative; Research; Deep; Seismic; Investigation

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. ***

9316132纳尔逊在1992年夏季成功地完成了西藏深部地震剖面的先导研究(INDEPTH I)之后，下一阶段的研究(INDEPTH II)包括采集和分析大约200公里的深部地震反射剖面，以及沿横跨特提斯喜马拉雅北部、印度河-藏布江缝合带和西藏南部冈底斯岩基的导线的互补的广角和离线(稀疏三维)反射数据和地表地质信息。所获得的数据将为喜马拉雅/西藏高原碰撞带内大陆地壳变形和增厚的机制提供新的、可能是根本的见解--这是地球上活动的大陆/大陆碰撞的典型例子。该项目将按照平均分摊成本的原则与中国地质矿产部合作进行，并将使用地质矿产部的地震反射井队进行数据采集，并为广角和离线记录提供震源。在美国方面，该计划将直接资助康奈尔大学和锡拉丘兹大学进行整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纽约州立大学奥尔巴尼分校的调查人员还将参与数据解释、与MGMR的协调以及获取横断面沿线的地表地质数据。***