Thermal-Mechanical Evolution of the Northern San Andreas Fault System

圣安德烈亚斯断层系统的演化 通过与开发相关的热机械过程， 西部边缘下形成的“无板窗”的演变 北美的一部分。 作为无板窗口的结果， 分隔北美板块和太平洋板块的板块边界 有一个复杂的三维几何形状，随着时间的推移而变化， 重要后果的构造过程与 圣安德烈亚斯断层系统。 与一项研究工作相结合， 在劳伦斯利弗莫尔国家实验室， 将开展口译活动， 以下内容：1）热，地震， 戈尔达板块南缘应力/强度演化 因为它与北方下面的无板窗户相互作用 加州; 2）热/岩石演化研究 与扰动有关的北美地壳 地幔上涌、岩浆底侵和壳幔 混合; 3）详细分析了低层的演化 地壳-上地幔剪切带， 板块边界、地壳断层的发育以及 地壳块体的位移变形行为 与圣安德烈亚斯断层系统有关

The evolution of the San Andreas Fault System is controlled by thermal-mechanical processes associated with development and evolution of a "slabless window" formed beneath the western edge of North America. As a consequence of the slabless window, the plate boundary separating the North American and Pacific plates has a complex 3-D geometry which varies through time, with important consequences for tectonic processes associated with the San Andreas Fault System. In conjunction with a research effort at Lawrence Livermore National Laboratory, modeling and data interpretation activities will be conducted to address the following: 1) Evaluation of the thermal, seismic, and stress/strength evolution of the southern edge of the Gorda Plate as it interacts with the slabless window beneath Northern California; 2) Investigation of the thermal/petrologic evolution of the North American crust in association with perturbations from mantle upwelling, magmatic underplating, and crust-mantle mixing; 3) Detailed analyses of the evolution of the lower crustal - upper mantle shear zones which serve as components of the plate boundary, the development of crustal faults, and the displacement and deformation behavior of crustal blocks associated with the San Andreas Fault System.