The history and geodynamic mechanisms of Cenozoic exhumation and denudation of the Lhasa terrane (LT), southern Tibetan Plateau, remain poorly constrained. Most previous studies investigating the exhumation of the LT have relied on extrapolating interpretations based on a few well–studied but small areas, which inevitably introduce bias. Here, our compilation of new and published thermochronologic ages are plotted against latitude, longitude, and elevation, to illustrate the distribution of cooling ages across broad regions of the LT. Primary results reveal that 1) the north LT experienced significant exhumation during 80–40 Ma; 2) Compared with north LT, exhumation and erosion in the south LT continued after ∼40 Ma, and; 3) N–S striking rifting, E–W striking river incision, and thrusts led to continued local denudation of the south LT between 20–5 Ma.

中文翻译：

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结合该地区的地质综合，对有关拉萨地体的新的和现有的数据进行汇编

青藏高原南部拉萨地体（LT）新生代折返剥蚀的历史和地球动力学机制仍然缺乏约束。大多数先前调查 LT 挖掘的研究都依赖于基于一些经过充分研究但小区域的推断解释，这不可避免地会引入偏见。在这里，我们根据纬度、经度和海拔绘制了我们对新的和已发表的热年代学年龄的汇编，以说明冷却年龄在 LT 广泛地区的分布。初步结果表明 1) LT 北部在 80-40 Ma 期间经历了明显的折返；2) 与北半球相比，南半球的折返和侵蚀持续到~40 Ma之后，并且；3) N-S 走向裂谷，E-W 走向河流切口，