Detrital zircon population of Proterozoic meta-sedimentary strata in the Qinling-Qilian-Kunlun Orogen
秦-祁-昆造山带元古宙副变质岩层碎屑锆石年龄谱研究

According to the data of detrital zircon population the Beidahe,Hualong,Huangyuan,Jinshuikou,Douling and Qinling complex-groups, which are thought to be Palaeoproterozoic in age before, at least part of the strata including all selected samples should belong to the Late Mesoproterozoic or Early Neoproterozoic. The data also illustrate that the eroded area of the strata are characterized by developed Early Mesoproterozoic materials, but only less Palaeoproterozoic ones. So all involved samples show a similar feature of the detrital zircon population.