Collaborative Research: Seismic Imaging of New Transitional Crust in the Salton Trough Oblique Rift

摘要本项目将通过对索尔顿海槽的地震反射和折射测量，研究大陆岩石圈的破裂过程。这里是研究岩浆作用和沉积作用对大陆伸展和岩石圈纵向应变分配影响的理想地点。研究的目的是探讨裂陷大陆边缘的过渡性地壳的性质；岩浆作用在断裂最后阶段的作用；顺化沉积对岩浆作用的影响及伸展机制；高度斜向大陆裂陷的分割与位移；地震危险性评价的三维结构。更广泛的影响包括解决边际RCL倡议的重要目标，并为Earthscope和GeoSwath倡议的目标做出贡献。它使用地球观测仪器。它将促进margin、Earthscope和USGS之间的紧密合作，并让本科生和研究生参与实地实验。它还将把实验纳入研究生水平的课程，并让学生参与数据收集后的解释。

0742263 HoleAbstractThe project will address the processes of rupturing of continental lithosphere through seismic reflection and refraction survey of the Salton Trough. This is an ideal location to study the effect of magmatism and sedimentation on continental extension and the portioning of the strain vertically in the lithosphere. The objectives of the study are to investigate the nature of the transitional crust at rifted continental margins; the role of magmatism in final stages of breakup; the effect of synrift sedimentation on magmatism and extension mechanism; the portioning and displacement in highly oblique continental rifting; and 3D structure for earthquake hazard evaluation.The broader impacts include addressing important goals of the MARGINS RCL initiative and contribute towards the goals of Earthscope as well as GeoSwath initatives. It uses Earthscope instrumention. It will foster strong collaboration between MARGINS, Earthscope and USGS, and involve undergraduate and graduate students in the field experiment. It will also incorporate the experiment into a graduate level course, and involve students in the interpretation of the data once it is collected.