Collaborative Research: Seismic Study of the Galicia S Detachment

大西洋等海洋盆地是一个过程的最终产物，这个过程始于东非等大陆裂谷，经过一个被认为以现代红海为代表的年轻洋盆阶段，最后是一个数百万年来因海底扩张而产生的更广泛的洋盆？在大洋中脊的岩浆和构造过程中形成新的海底的过程。虽然人们对这一过程的了解很笼统，但人们对其早期阶段的细节知之甚少，因为地质证据被覆盖的沉积物、与早期裂谷相关的大规模火山活动以及在大多数地方厚厚的盐层所掩盖。加利西亚位于北大西洋东部，是一个例外，那里发生了裂谷，几乎没有火山活动，也没有覆盖的盐分。因此，对于一个强大的国际团队来说，这是一个理想的地点，可以进行这次三维地震反射测量，以成像早期形成的地质结构。该项目的许多更广泛的影响包括其强有力的国际合作，本科生以及一名研究生和一名博士后研究员的参与，以及重要的新数据对科学界的贡献。

Ocean basins such as the Atlantic are the end products of a process that begins with continental rifts such as East Africa, passes through a young ocean basin phase thought to be typified by the modern Red Sea, and ends with a broader ocean basin produced over many millions of years by seafloor spreading ? a process by which new ocean floor is created by magmatic and tectonic processes at mid-ocean ridges. Though the process is understood in an general way, the details of its earliest stages are poorly known because the geologic evidence is obscured by overlying sediments, massive volcanism associated with early rifting, and, in most places, thick deposits of salt. Located in the eastern North Atlantic, Galicia, is an exception, where rifting occurred with little volcanism, and there is no overlying salt. For that reason, it is an ideal locality for a strong international team to carry out this three-dimensional seismic reflection survey to image the early-formed geologic structure. Among the many broader impacts of this project are its strong international collaboration, participation by undergraduate students as well as a graduate student and a post-doctoral fellow, and the contribution of important new data to the scientific community.