Crustal Rheology and Continental Deformation

9814303罗伊登活动构造学中的许多问题都涉及地壳和地幔运动耦合的程度。要解决这些问题，需要从大范围的长度和时间尺度观测中获得有关地壳流变学的定量信息。然而，大多数在实验室尺度上收集的定量数据并不能很好地与表征地震周期、断层起爆和区域构造的尺度上的变形相关联。该项目将模拟岩石圈在斜辐合环境中的中到大规模变形，结合各种破坏和流动标准，并将模型结果与实际系统和实验室测量结果进行比较。这项研究的最终目的是提供控制大陆变形的平均地壳性质的约束条件。

9814303Royden Many questions in active tectonics involve the extent to which motions in the crust and underlying mantle are coupled. Resolving these issues require quantitative information about crustal rheology obtained from observations over a broad range of length and time scales. However most quantitative data collected on laboratory scales are not well correlated to deformation on scales that characterize the earthquake cycle, fault initiation and regional tectonics. This project will model the intermediate to large-scale deformation of the lithosphere in oblique convergent settings, incorporating various failure and flow criteria, and compare model results to actual systems and to laboratory measurements. The ultimate goal of this study is to provide constraints on the average crustal properties that control continental deformation.