欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
冈底斯岩带西段冈仁波齐岩体斑状花岗闪长岩中的锆石SHRIMP U-Pb年龄测定结果为48.3Ma±1.5Ma,该年龄反映了冈仁波齐花岗闪长岩体的侵位或结晶年龄,属于喜马拉雅期,相当于中始新世.岩体的形成时间略晚于印度-欧亚大陆初始碰撞的时间,为两大陆碰撞作用过程中的产物,属同碰撞花岗岩.
英文摘要：
SHRIMP U-Pb zircon dating of porphyritic granodiorite in the Kangrinboqê pluton in the western segment of the Gangdise belt, southwestern Tibet, yielded an age of 48.3±1.5 Ma. This age shows that the Kangrinboqê granodioritic pluton was emplaced or crystallized in the Himalayan Stage, equivalent to the middle Eocene. The formation time of the pluton is a little later than the time of initial India-Eurasia collision. It is the product of collision of the two continents and belongs to syncollisional granite.
同期刊论文项目
同项目期刊论文
Understanding of the geological and geodynamic controls on the formation of the South China Sea: A n
Platinum-group elemental geochemistry of mafic and ultramafic rocks from the Xigaze ophiolite, south
期刊信息
位置：