The Cambrian SPICE Event in Yongshun Area , Hunan
详细信息
- 责任者：Wang Chuanshang (Wuhan Center of Geological Survey ; Wuhan 430223 ; China) ; Li Xubing
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(6)
- 关键词：寒武纪 ; Cambrian ; 地层对比 ; stratigraphic correlation ; 湖南 ; Hunan Province
- 页码：p.1440-1445
- 图表：3 illus., 1 table, 12 refs.
- 分类号：1200
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
An analysis of thirty-eight C/O stable isotopic samples collected from the Wangcun section in the Cambrian slope facies of Yongshun area within Hunan Province shows that there is a carbon isotope abnormal event, i.e., the SPICE event. The event shows remarkable positive shift of stable carbon isotopes, whose value increases from 0.69‰ at the top of Huaqiao Formation to the peak of 3.05‰ in the middle of Chefu Formation, and then decreases gradually to 0.67‰ in the middle of Bitiao Formation. Due to its extensive correlativity, this event is of great significance for stratigraphic correlation, especially for the correlation of strata in the restricted platform.