Investigation of the Seismicity, Structure, and Tectonics ofAsia Through the Analysis of Data from Regional Seismic Networks

这项研究是为了研究印度和欧亚大陆之间的大陆碰撞，由于涉及的规模巨大，为在各种环境下研究发震大陆构造提供了最好的机会之一。将使用的大多数数据是与Vinnik博士领导的地球物理研究所的一个俄罗斯研究小组合作，未得到充分利用的前苏联地震记录。研究的目的是：1)研究亚洲不同地区地幔相变的性质及其与区域构造的关系；2)利用震源参数研究天山形成过程中的浮力；3)研究高加索、贝加尔湖地区上地幔的性质。4)通过行时层析成像和接收函数分析研究阿尔泰地区的地壳和上地幔结构；5)研究千岛岛-堪察加俯冲板块结构。这项研究是国家减少地震危害计划的一个组成部分。

This research is to study the continental collision between India and Eurasia which, because of the enormous scales involved, provides one of the best opportunities for investigating seismogenic continental tectonics in a wide variety of environments. Most of the data to be used are the under-utilized seismic records of the former Soviet Union in cooperation with a Russian research group at Institute of the Physics of the Earth headed by Dr. Vinnik. Objectives of the study are 1) to investigate the nature of the phase transitions in the mantle beneath different parts of Asia and determine their relationships to regional tectonics, 2) to investigate buoyancy forces in the generation of the Tien Shan by means of earthquake source parameters, 3) to investigate the nature of the upper mantle beneath the Caucuses, Baikal region, and Tibet through the analysis of S and SS phases, 4) to investigate the structure of the crust and upper mantle in the Altai region through travel-time tomography and receiver-function analysis, and 5) to investigate Kurile- Kamchatka subducting slab structure. This research is a component of the National Earthquake Hazard Reduction Program.