Detrital Zircon SHRIMP U-Pb Age from the Diaoyutai Formation, Xihe Group in Liaodong Peninsula, China and Its Geological Significance

• 责任者：Gao Linzhi (Institute of Geology ; CAGS ; Beijing 100037 ; China) ; Zhang Chuanheng
• 刊名：Geological Bulletin of China
• 出版年：2010
• 卷期：29(8)
• 关键词：碎屑岩 ; clastic rocks ; 铀—铅计时 ; U-Pb dating ; 辽东半岛 ; Liaodong Peninsula
• 页码：p.1113-1122
• 图表：6 illus., 3 tables, 20 refs.
• 分类号：0803
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

The upper limit line of the deposition of the Diaoyutai Formation is given by distributional pattern of detrital zircon age from the Diaoyutai Formation, Xihe Group, Qingbaikou System. The paper confirms the Late Precambrian Geological Time Scale by some new zircon SHRIMP U-Pb dating results, e.g.  Changcheng System (Ch,  Pt₂¹)limit is in 1.8~1.6 Ga; Jixian System (Jx,  Pt₂²) limit is in 1.6～1.4 Ga; unnamed system (Pt₂^3-4)limit is in 1.4～1.0 Ga; Qingbaikou System (Qb, Pt₃¹) limit is in 1 000～780 Ma; Nanhua System (Nh, Pt₃²) limit is in 780～635 Ma and Sinian (Z, Pt₃³) limit is in 635～542 Ma.