Origin of middle Miocene leucogranites and rhyolites on the Tibetan Plateau: Constraints on the timing of crustal thickening and uplift of its northern boundary  

作　　者：ZHANG LiYun DING Lin YANG Di XU Qiang CAI FuLong LIU DeLiang 

机构地区：[1]Key Laboratory of Continental Collision and Plateau Uplift,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China [2]Graduate University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Science Bulletin》2012年第5期511-524,共14页

基　　金：supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-Q09-03);the National Natural Science Foundation for Distinguished Young Scholars (40625008);the National Basic Research Program of China (2011CB403101)

摘　　要：Leucogranites 玩在理解外壳的变厚的一个重要角色，融化在大陆人 collisional 带，和高原以内高举。地调查证明来自霍·克西尔·莱克区域的中新世的火的岩石主要由二云母的 leucogranites 和流纹岩组成。我们学习了由锆石 U-Pb，白云母和 sanidine 40Ar/39Ar 地球年代学的 Bukadaban 二云母的 leucogranites 和凯考·莱克， Malanshan 和 Hudongliang 流纹岩，和整个岩石的 geochemical 和 Sr-Nd 同位素的分析。结果为 9.7 的 Bukadaban leucogranites 产出结晶化和冷却年龄 ????? ‰ ?????? 椠湯獯桰牥捩吗？？We thank Dr. Lai Qingzhou and Yue Yahui for their assistance with zircon U-Pb and ^40Ar/^39Ar dating, Dr. Shi Rendeng and Brendon Johnson ,fortheir helpful suggestions and two anonymous reviewers for their construc- tive comments. This work was supported by the Knowledge Innovation Pro- gram of the Chinese Academy of Sciences （KZCX2-YW-Q09-03）, the Nation- al Natural Science Foundation for Distinguished Young Scholars （40625008）, and the National Basic＇ Research Program of China （2011CB403101）.

关 键 词：淡色花岗岩 时间约束 地壳增厚 青藏高原 中中新世 流纹岩 自然科学基金会 边界 

分 类 号：P588.121[天文地球—岩石学] TP183[天文地球—地质学]