Reprocessing and Interpretation of Reflection Seismic Data from a Reactivated Rift in the Andean Foreland in Northwestern Argentina

本研究通过对阿根廷国家石油公司（YPF）收集的反射地震资料的再处理和解释，对阿根廷西北部安第斯前陆进行了研究。再处理将提高常规工业工作中主要感兴趣深度以下的反射数据的质量。这些结果将与孟菲斯州立大学安装了9个月的便携式地震台网所做的地震研究相结合。该研究目前处于挤压状态，该状态重新激活了在伸展过程中形成的先前存在的断层。两组数据的结合将有助于了解安第斯前陆的构造、造山活动和该地区的地震危险性。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 Andean foreland of northwestern Argentina by means of reprocessing and interpretation of reflection seismic data collected by the State Oil Company (YPF) of Argentina. The reprocessing will improve the quality of the reflection data at depths below those of primary interest in routine industry work. These results will be combined with earthquake studies done using a portable seismic network installed for 9 months by Memphis State University. The study is currently in a compressional regime that has reactivated preexisting faults formed in extension. The combination of the two data sets will bear on the understanding of tectonics of the Andean foreland, mountain building and earthquake hazard of the region. This research is a component of the National Earthquake Hazard Reduction Program.