Collaborative Research: Neotectonics Across an Active Oblique-Divergent Plate Margins, Southwestern Gulf of California

拟议的研究将通过对活动断层位置和滑动率的全面调查，在10到10万年的时间尺度上，量化南下加利福尼亚大陆边缘和加利福尼亚湾海底扩张系统之间的应变分配。它以该地区私人投资机构的经验为基础。研究的重点是拉巴斯湾裂谷边缘的一段。将采用几种方法，包括新构造填图、陆上和海上构造填图、古地震学和大地测量学。目的是确定板块边缘走滑分区的程度；为什么沿走向沿边缘的划分程度会发生变化？断层是如何随时间变化的？该项目是“大陆岩石圈破裂”倡议的一部分。这项工作将与墨西哥科学家合作，并将有助于了解该地区的地震危害。

The proposed research will quantify the partitioning of strain between the southern Baja California continental margin and the Gulf of California seafloor spreading system through a comprehensive survey of active fault locations and slip rates at 10 to 100,000 year time scales. It builds on the experience of the PIs in the region. The focus of study is a segment of the rift margin at La Paz Bay. Several approaches will be employed, including neotectonic mapping, onshore and offshore structural mapping, paleoseismology and geodesy. The goals are to determine to what extent is the plate margin strike-slip partitioned; why does the degree of partitioning change along strike along the margin and how has faulting changed over time? The project is a part of MARGINS "rupture of continental lithosphere" initiative. Work will be in collaboration with Mexican scientists and will contribute toward the understanding of earthquake hazards in the area.