US-Argentina Cooperative Research on Seismological and Geological Studies of Central Andes of South America

美阿根廷南美洲中部安第斯山脉地震地质合作研究

• 批准号: 8902105
• 负责人: Jer-Ming Chiu
• 金额: $ 1.25万
• 依托单位: University of Memphis
• 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: 1989-10-15 至 1992-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8902105&HistoricalAwards=false
• 关键词: US; Argentina; Cooperative; Research; Seismological

This award supports cooperative research in seismology to be conducted by Jer-Ming Chiu and others at Memphis State University collaborating with Beatriz Coira and Jose Viramonte of the Universities of Jujuy and Salta, respectively, in Argentina. Seismologists and geologists from the U.S. and Argentina will conduct a detailed seismotectonic study of the central Andes. They will use high resolution seismic data obtained from the new seismic array experiment in San Juan and the ongoing experiment in the Jujuy region to: (1) incoporate knowledge of surface faults into the design of the network in Jujuy, (2) compare analysis of the San Juan and Jujuy data and (3) integrate new seismic data with geologic information to make tectonic interpretations. This cooperation between U.S. seismologists and Argentine geologists will provide new information about seismic activity and crustal and lithospheric structure. The addition of geological, geochemical, geomorphological and volcanological information from the co-investigators at Jujuy and Salta will permit a detailed correlation of shallow crustal seismicity with known surface faults making tectonic interpretation possible. This type of cooperative study is essential to obtain new insights into regions of active crustal compression.

该奖项支持孟菲斯州立大学的杰-明·邱等人与阿根廷胡胡伊大学和萨尔塔大学的比阿特丽斯·科伊拉和何塞·维拉蒙特合作进行的地震学合作研究。来自美国和阿根廷的地震学家和地质学家将对安第斯山脉中部进行详细的地震构造研究。他们将利用圣胡安新地震阵列实验和胡胡伊地区正在进行的实验获得的高分辨率地震数据：(1)将地表断层知识纳入Jujuy的网络设计中；(2)对圣胡安和胡胡伊地震资料进行对比分析；(3)将新的地震资料与地质信息相结合，进行构造解释。美国地震学家和阿根廷地质学家之间的合作将提供有关地震活动、地壳和岩石圈结构的新信息。从胡胡伊和萨尔塔的联合调查人员那里获得的地质、地球化学、地貌和火山学信息将使浅层地壳地震活动与已知的地表断层的详细关联成为可能，从而使构造解释成为可能。这种类型的合作研究对于获得地壳活动压缩区域的新见解至关重要。