Mesozoic-Cenozoic Tectonic Evolution of the Mojave Desert, California

最近对加州莫哈韦沙漠的研究定义了莫哈韦伸展带，这是一个中新世早期大陆伸展的区域，有助于了解加州东部剪切带的构造发展及其在容纳太平洋-北美板块运动中的作用，并识别了几次中生代构造变质事件。这种更新将试图约束滑脱断裂的初始倾角，以及与滑脱沿线的脆性-韧性转变有关的一些变质和构造特征。此外，古地磁工作将有助于记录中新世早期主要垂直轴旋转的时间和幅度。研究结果将解决伸展构造学中涉及深部岩石如何到达地表的几个基本问题。

Recent research in the Mojave Desert of California has defined the Mojave Extensional Belt, a regional zone of early Miocene-age continental extension, helped understand the tectonic development of the eastern California shear zone and its role in accommodating Pacific- North American plate motion and recognized several Mesozoic tectonometamorphic events. This renewal will attempt to constrain the initial dip of detachment faulting and several metamorphic and structural features associated with a fossil brittle-ductile transition along the detachment. Additionally, paleomagnetic work will help document the timing and magnitude of major early Miocene vertical axis rotations. Results will address several fundamental issues in extensional tectonics that involve how deep-seated rocks reach the surface.