Structure and Mechanics of Seismogenic Fault Zones; A Comparative Study of Transtensional Faulting in Yunnan Province, China and Western Cordillera, United States

该项目将调查结构和地震 云南张扭断裂破裂特征 并将中国各省的特点进行比较和对比 云南的断裂与盆地的伸展断裂- 分布于美国落基山脉各省。 的 这项工作将与来自中国的同事一起完成， 国家地震局地质研究所，北京， 中国 本研究的目的是：（1）建立一个 金川-洱源区域构造运动学模型 构造-力学模型 选择断层带，（3）解释这些模型， 孕震破裂特征;（4）比较 预测的行为与在历史和 古地震记录 云南的工作将是 结合中国大陆活动断裂带的类似研究， 美国西部的盆岭和落基山脉地区， 努力进一步了解 地质构造和地壳地震学。

This project will investigate the structural and earthquake rupture characteristics of transtensional faulting in Yunnan Province, China and will compare and contrast the characteristics of faulting in Yunnan with extensional faulting in the Basin- Range qnd Rocky Mountain Provinces of the United States. The work will be done in conjunction with Chinese collegues from the Geological Institute of the State Seismological Bureau, Beijing, China. The bjectives of this research are (1) to establish a regional kinematic model of tectonics in the Jinchuan--Eryuan extensional zone, (2) construct structural-mechanical models of selected fault zones, (3) interpret these models in terms of seismogenic rupture characteristics, and (4) compare the predicted behavior with that observed in the historical and paleo-seismological record. The work in Yunnan will be integrated wtih similar studies of active fault zones in the Basin-Range and Rocky Moutain regions of the western U.S. in an effort to further understanding of the relations between geologic structure and crustal seismogenics in general.