沉积与特提斯地质Issue(4)：1-5,5.
南秦岭西乡群孙家河组锆石SHRIMP U-Pb年龄及其构造地质意义
The Sunjiahe Formation of the Xixiang Group, southern Qinling Ranges:SHRIMP zircon U-Pb age and its tectonic implications
摘要
Abstract
The dacitic lavas from the Sunjiahe Formation in the Xixiang Group, southern Qinling Ranges are examined on the basis of lithochemical, REE and Trace element data, and give a SHRIMP zircon U-Pb age of 814. 8 ± 5. 2 Ma which represents the late Qingbaikouan. This age provides a new evidence for the approaches to the ages of the transitional besement of the Yangtze block in southern Qinling Ranges, and the convergence timing of the supercontinent Rodinia in the Yangtze block and tectonic evolution of the Qinling orogenic zone.关键词
南秦岭/西乡群/孙家河组/锆石SHRIMP U-Pb年龄Key words
southern Qinling Ranges/Xixiang Group/Sunjiahe Formation/SHRIMP zircon U-Pb age分类
天文与地球科学引用本文复制引用
崔建堂,王峰,段建国,赵陕兰,崔海涛,崔海曼..南秦岭西乡群孙家河组锆石SHRIMP U-Pb年龄及其构造地质意义[J].沉积与特提斯地质,2013,(4):1-5,5.基金项目
中国地质调查局项目《陕西省地质系列图件编制与综合研究》 （）
