Sedimentation Characteristic and Carbon Isotope Composition in Late Paleoproterozoic Xingditage Group in Quruqtagh Region of Xinjiang,   China

• 责任者：Yang Ruidong (Graduate School of Guizhou University ; Guiyang 550025 ; China) ; Luo Xinrong
• 刊名：Northwestern Geology
• 出版年：2010
• 卷期：43(1)
• 关键词：古元古代 ; Paleoproterozoic Era ; 沉积环境 ; sedimentary environment ; 碳同位素 ; carbon isotopes ; 新疆 ; Xinjiang
• 页码：p.37-43
• 图表：2 illus., 1 table, 10 refs.
• 分类号：1300
• issnNo：ISSN1009-6248
• isbnNo：CN61-1149/P

The Xingditage Group in the Quruqtagh region of Xinjiang is considered as the Late Paleoproterozoic stratigraphy whose age is 2 063.28 Ma to 2 321.4 Ma from Pb isotopic dating.   The carbon isotopic composition of marble of the Xinge’er Formation of Xingditage Group shows that its carbon isotopic composition ranges from 5.15‰ PDB to -0.79‰ PDB,   and most carbon isotopic data distribute in 2‰ PDB, much different from δ¹³C_carb composition (0‰～1‰ PDB) in early Middle Proterozoic(1 600～1 400 Ma).    Therefore,   the authors suggest that the Xinge’er Formation of Xingditage Group belongs to Late Paleoproterozoic in age.