COLLABORATIVE RESEARCH: Thermal Modelling of Himalayan Geology

9314662此外，喜马拉雅造山带是大陆-大陆碰撞活动的经典例子，并得到了相当多的研究。除了主要的逆冲系统外，在高构造层次上还存在伸展特征，可能适应陡峭地形梯度的重力坍塌，从而表明喜马拉雅是一个经历了几次应力场、热结构或其他构造参数变化而进行了多次调整的动力系统。这个项目将通过测定适当的变形特征来检验造山带中同压坍塌是幕式的这一假设。该项目还将在喜马拉雅中部积累的地质数据库的基础上开发相互关联的热和力学模型。这一造山带特有的模型有望对理解碰撞造山带的复杂动力学有相当大的意义。

9314662 Furlong The Himalayan Orogen is the classic example of an active continent-continent collision and has received considerable study. In addition to major thrust systems, extensional features are present at high structural levels, possibly accommodating gravitational collapse of steep topographic gradients, thus indicating that the Himalaya is a dynamic system that has undergone several episodes of adjustment in response to changes in the stress field, thermal structure or other tectonic parameters. This project will test the hypothesis that syn-compressional collapse was episodic in the orogen by dating appropriate deformational features. The project will also develop linked thermal and mechanical models based on the accumulated geological database for the central Himalaya. This model, specific to this orogen, is expected to have considerable relevance to the understanding of complex dynamics of collisional orogens in general.