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

拆离断层是一种大规模的伸展构造，是造成地壳伸展的主要原因，然而拆离断层的起源和演化却知之甚少，且存在争议。本项目将试图解决机制和拆离率和相关盆地的发展，在一个活跃的现代例子-在秘鲁安第斯山脉的科迪勒拉布兰卡拆离断层。主要研究了上拆离盆地的时空演化、抬升下盘的剥蚀历史和第四纪运动学历史。研究结果将被纳入大洋-大陆会聚构造背景下的拆离断层构造模型中，有望在该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.