A Discussion on the Age of Volcanic Rocks in Xiaorequanzi Formation, Queletag, Xinjiang
详细信息
- 责任者：Xiao Weifeng (Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Wang Zongxiu
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(12)
- 关键词：早二叠世 ; Lower Permian ; 天山 ; Tianshan Mountains
- 页码：p.3615-3626
- 图表：4 illus., 2 tables, 46 refs.
- 分类号：1200
- 出版序号：20122587
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Xiaorequanzi Formation is a unit of volcanic rock among Carboniferous-Permian volcano-sedimentary rocks which are widely exposed in Queletag, East Tianshan Mountains, Xinjiang. It has been divided into Early Carboniferous by referring the neigboring Digar Formation which is defined to Middle Carboniferous by fossil age. Different ages have been given on Xiaorequanzi copper mine in the southern part of Queletag. In the northern part, isotopic chronology data is absent where it is dated by using SHRIMP. According to present evidence, Xiaorequanzi Formation ought to be Early Permian and other strata units and their relative age may be renewed.