地质通报2016，Vol.35Issue(9)：1479-1487,9.
西藏谢通门地区中侏罗世花岗岩的地球化学特征及时代依据
Geochemical characteristics and age evidence of Middle Jurassic gran-ite in Xietongmen area, Tibet
摘要
Abstract
Xaitongmoin County belongs regionally to southern subbelt of Gandise granite belt and possesses extremely developed in⁃trusive rocks. In geological map, there are Cretaceous, Paleogene and Neogene rock masses. Through isotopic chronologic study, the authors obtained 12 zircon U-Pb age data and, on such a basis, separated a Jurassic intrusive body from the previously-assigned Creta⁃ceous, Paleogene and Neogene rock masses. According to its rock type, this Jurassic intrusive body is incorporated into the Early Ju⁃rassic Dorecun series and Middle Jurassic Donggaxiang series. Zircon U-Pb isotopic age of Yuelagamo rock body within the Jurassic intrusive body is 166.9±2.8Ma, suggesting Middle Jurassic Barou period.关键词
冈底斯带/谢通门县/中侏罗世/花岗岩/同位素年龄Key words
Gangdise belt/Xietongmen County/Middle Jurassic/granite/isotopic age分类
天文与地球科学引用本文复制引用
王贝,李鹏,刘智贤,程龙,闫磊,王卫军..西藏谢通门地区中侏罗世花岗岩的地球化学特征及时代依据[J].地质通报,2016,35(9):1479-1487,9.基金项目
中国地质调查局项目 （）
