COLLABORATIVE RESEARCH: Indo-Asian Tectonics; Significance of Neogene Uplift Events

构造发展存在几种对比模式 喜马拉雅和青藏高原的一部分 这些模型中的每 预测了地壳增厚开始的不同时间， 在速度或增厚的差异，以及不同的时间， 达到现今地壳厚度。 却没有一 现有模型预测推断的剥蚀事件发生在25 - 20 MA. 这项研究将测试模型，并确定如何广泛 利用构造填图和~（40）Ar/~（39 沿着冈底斯带和亚东-古鲁带的热年代学 裂谷 热年代学也将与磁- 对现有样本进行地层学分析，以全面测试模型。 结果将提供一个显着的贡献下- 站在碰撞和地壳增厚的构造 流程.

Several contrasting models exist for the tectonic development of the Himalayan and Tibetan Plateau. Each of these models predicts different times for the initiation of crustal thickening, differences in the rate or thickening, and different times for attainment of present crustal thickness. However, none of the existing models predicts the inferred denudation event at 25 to 20 Ma. This study will test the models and determine how widespread was the denudation, using structural mapping and 40Ar/39Ar thermochronology along the Gangdese belt, and in the Yadong-Gulu rift. The thermochronology will also be combined with magneto- stratigraphy on existing samples in order to fully test the models. The results will provide a significant contribution to under- standing the tectonics of collisional and crustal thickening processes.