Collaborative Research: The Four-Dimensional Pattern of Rifting in the Southern Gulf of California

pi将对加利福尼亚湾南部进行一段深度测量，获得3.5千赫、磁场和重力剖面，并收集火山基底的疏浚样本。研究的目的是检验有关下列一般问题的假设：大陆裂谷是如何在构造上分割的，这是否与断裂的不对称性有关；裂谷是如何在构造上扩展的；以及伴随大陆分裂和最早的海底扩张的是哪种类型的岩浆活动。加利福尼亚湾是margin的重点研究地点，这项研究将补充该地区正在进行和计划进行的其他研究。

The PIs will carry out a swath bathymetry survey of the southern Gulf of California, obtain 3.5 kHz, magnetic and gravity profiles and collect dredge samples of the volcanic basement. The objectives are to test hypotheses concerned with the generic problems of how continental rifts are segmented tectonically and whether this relates to asymmetries of faulting, how rift propagation occurs tectonically and what type(s) of magmatism accompanies continental break-up and earlist seafloor spreading. The Gulf of California is a MARGINS' focus site and this study will complement other research being carried out and planned for this region.