Collaborative Research: Seismic Study of the Galicia S Detachment

合作研究：加利西亚支队的地震研究

• 批准号: 1030650
• 负责人: Donna Shillington
• 金额: $ 35.9万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-03-15 至 2018-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1030650&HistoricalAwards=false
• 关键词: Collaborative; Research; Seismic; Study; Galicia

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.

海盆（例如大西洋）是一个过程的最终产物，该过程始于东非等大陆裂谷，经过一个年轻的海洋盆地阶段，被认为是现代红海所构成​​的，最后以海底扩散在数百万年内生产的更广泛的海洋盆地？通过岩浆和构造过程在中山脊中的岩浆和构造工艺创建新的海底的过程。尽管该过程以一种一般的方式被理解，但其最早阶段的细节是鲜为人知的，因为地质证据是通过上覆盖的沉积物，与早期裂谷相关的大规模火山和大多数地方的大量盐沉积所掩盖的。加利西亚位于北大西洋东部，是一个例外，在那里发生裂谷，几乎没有火山，而且没有上覆的盐。因此，对于一个强大的国际团队来说，进行这项三维地震反思调查以对早期形成的地质结构进行想象，这是一个理想的地方。该项目的许多广泛影响包括其强大的国际合作，本科生以及研究生和博士后研究员的参与以及重要的新数据对科学界的贡献。