Collaborative Research: Detachment Faulting and Basin Development in a Convergent Setting: The Cordillera Blanca, Peru

滑脱断层是一种大规模的伸展构造，是地壳伸展的主要原因，但对滑脱的起源和演化却知之甚少，也存在争议。该项目将试图以一个活跃的现代例子--秘鲁安第斯山脉的Cordillera Blanca拆离断层--来探讨滑脱和相关盆地发展的机制和速率。主要研究了上滑脱盆地的时空演化、下盘隆升的剥蚀史和第四纪运动史。研究结果将被纳入大洋-大陆会聚背景下拆离断层的构造模型，有望在这一构造背景下得到普遍应用。

Detachment faults are large-scale extensional structures that are responsible for much of the extension observed in the crust, however the origin and evolution of detachments are poorly understood and controversial. This project will attempt to address the mechanisms and rates of detachment and associated basin development in an active modern example - the Cordillera Blanca detachment fault in the Peruvian Andes. The work centers on the temporal and spatial evolution of the supradetachment basin, the denudation history of the uplifted footwall, and the Quaternary kinematic history. Results will be incorporated into tectonic models for detachment faulting in oceanic-continental convergent settings, which are expected to be of general application in this tectonic setting.