Structural and Thermal Evolution of the Sierra Nevada- Basin and Range Transition Zone

9725371 Miller北美西部的盆地和山脉省，是由主要的海岸伸展产生的，在这些伸展中，通常是e向倾斜的历史断层旋转地壳块体，顶部向西重复运动。Miller和Dumitru在他们的建议中并没有指出断块旋转和断裂复杂性从西向东增加。他们还发现证据表明，这一断裂从东向西向内华达山脉地壳块相对较大且稳定。然而，内华达山脉区块被侵蚀的时间和机制尚不清楚。这项研究将使用裂变轨迹数据和详细的测绘来确定断层滑动挖掘的时间和规模，并帮助限制地壳内的前伸展和同伸展温度和地热梯度。这项研究的结果将解决地壳如何扩展以及地壳的温度或热结构在多大程度上控制断层的分布或其位移的基本问题。

9725371 Miller The basin and range province of western North America, is produced by major coastal extension in which generally E-dipping historic faulting rotates crustal blocks with a top to the west reuse of motion. Miller and Dumitru in the proposal not that there is an increase in fault block rotation and in faulting complexity from west to east. They have also found evidence that this faulting youngs from east to west toward the relatively large and stable Sierra Nevada crustal block. However, the timing and mechanisms by which the Sierra Nevada block is being eroded is not well known. This study will use fission track data and detailed mapping to determine the timing and magnitude of exhumation by fault slip, and to help constrain pre-and syn-extensional temperatures and geothermal gradients within the crust. The results of this study will address the fundamental question of how crust extends and to what extent temperature or thermal structure of the crust controls the distribution of faults or their displacements.