Investigation of the Seismicity, Structure, and Tectonics ofthe Tien Shan Region of Central Asia through the Analysis of Data from a Regional Seismic Network

通过区域地震台网数据分析中亚天山地区的地震活动、结构和构造

• 批准号: 8903478
• 负责人: Steven Roecker
• 金额: $ 5.51万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-15 至 1991-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8903478&HistoricalAwards=false
• 关键词: Investigation; Seismicity; Structure; Tectonics; ofthe

The project is a collaborative seismic study with the Institute of Physics of the Earth in the USSR. The analysis will use an extensive earthquake data set from the Tien Shan area of the USSR to precisely locate earthquakes, determine the orientation and stresses on faults, and determine the structure of the crust and upper mantle. This region is one of the best examples of an actively deforming intracontinental mountain belt and is analogous to the time of the Laramide orogeny in the Rocky mountains of Colorado, Utah, and Wyoming during the Late Cretaceous. The determination of deformation of the crust in Tien Shan bears on the occurrence of earthquakes and seismic hazard in other seismic areas of the world and thus has direct application to the National Earthquake Hazard Reduction Program.

该项目是与苏联地球物理研究所合作进行的地震研究。分析将使用苏联天山地区的大量地震数据集来精确定位地震，确定断层的方向和应力，并确定地壳和上地幔的结构。该地区是活跃变形的陆内山带的最佳例子之一，类似于晚白垩世科罗拉多州、犹他州和怀俄明州落基山脉的拉拉米德造山作用。天山地区地壳形变的确定关系到世界其他地震区地震的发生和震害，直接应用于国家防震减灾规划。