Use of Seismic Reflection to Confirm a Major Buried Fault System Beneath the Coastal Plain of South Carolina

9508229塔尔瓦尼这项研究旨在通过获取南卡罗来纳州沿其走向的4条8至10公里长的高分辨率地震反射剖面，测试最近提出的长400公里的北东向断层系统的存在，该断层系统假定延伸穿过卡罗莱纳州和弗吉尼亚州的沿海平原。剖面图的目的是寻找在侏罗纪玄武岩流(约600-800米深)及其趋势上覆沉积层中可能发生偏移的证据。堪萨斯大学的一个团队将获取并处理这些数据。提出的断层系统是1886年南卡罗来纳州查尔斯顿地震的一个候选断层。这项研究是国家减少地震灾害计划的一部分。***

9508229 TALWANI This research is to test the existence of a recently proposed 400-km-long, north northeast-trending fault system, which is postulated to extend through the Coastal Plain of the Carolinas and Virginia, by acquiring four 8- to 10-km-long high-resolution seismic reflection profiles across its trend in South Carolina. The objective of the profiling is to seek evidence of possible offsets in a basalt flow (about 600-800 m depth) Jurassic in age and in overlying sedimentary layers across its trend. A team from the University of Kansas will acquire and process the data. The proposed fault system is a candidate for the causal fault of the 1886 Charleston, S.C., earthquake. This research is a component of the National Earthquake Hazard Reduction Program. ***