Collaborative Research: Four-Dimensional Evaluation of a Major Continental Detachment Fault: Structural, Paleomagnetic, and Thermochronologic Constraints

9909275 Duebendorfer0002008 Fitzgerald9910977断层大陆伸展是一种基本的地质作用，导致地壳减薄、盆地发育，并最终导致大陆断裂和被动大陆边缘和洋盆的发育。 本项目将利用亚利桑那州和内华达州的一个经过充分研究的拆离断层来研究正断层的几个方面，包括下板块相对于位移的隆起和折返历史以及上下板块过程耦合的程度。 这项工作包括综合的构造、裂变径迹和古地磁研究。 结果预计将有助于更好地了解主要的正断层系统如何随着时间的推移演变。

9909275 Duebendorfer0002008 Fitzgerald9910977 FauldsContinental extension is a fundamental geologic process that results in crustal thinning, basin development, and can ultimately lead to continental breakup and development of passive continental margins and ocean basins. This project will utilize a well-studied detachment fault in Arizona and Nevada to investigate several aspects of normal faulting including the uplift and exhumation history of the lower plate relative to displacement and the extent to which upper and lower plate processes are coupled. The work involves an integrated structural, fission track and paleomagnetic study. Results are expected to contribute to a better understanding of how major normal fault systems evolve through time.