Kinematic Analysis of Brittle Fault Zones Using Landslide Deposits as Analogues

目前确定任何年龄或地震能力的脆性断裂带的滑移矢量或剪切感的方法主要是基于条纹的方向。缺乏条纹的脆性断裂带很难或不可能用这些方法进行运动学分析。这项研究的主要目的是测试一种新的、基于对称性的方法在非条纹断裂带中立体地和统计地确定天气滑动矢量的普遍适用性。该模型将通过测量和分析Riedel构造和褶皱来测试，这些构造和褶皱发育在美国西南部几个新生代到最近的山体滑坡或岩石雪崩的底部、满是泥的剪切带中，那里的滑动矢量是已知的。结果将有助于验证一种确定自然界中常见的无条纹脆性断层滑动方向的新方法。

Current methods for determining the slip vector or sense of shear for brittle fault zones of any age or seismic capability are largely based on the orientation of striations. Brittle fault zones lacking striations are difficult or impossible to analyze kinematically by these methods. The primary objective of this research is to test the general applicability of a new, symmetry-based method for stereographically and statistically determining the synoptic slip vector in non-striated fault zones. The model will be tested by measuring and analyzing Riedel structures and folds developed in the basal, gouge-filled shear zones of several Cenozoic to Recent landslides or rock avalanches in the southwestern US where the slip vector is known. Results will help validate a new method for determining slip directions in unstriated brittle faults which are common in nature.