Geochemistry of Sulfur Isotope of Paleo-Evaporites in
- 责任者：Zhang Zhenguo (Geological Survey of Fujian Province ; Fuzhou 350001 ; China) ; Gao Jilei
- 刊名：Gansu Geology
- 出版年：2010
- 卷期：19(1)
- 关键词：蒸发岩 ; evaporites ; 钾盐矿床 ; potash deposit ; 塔里木盆地 ; Tarim Basin
- 页码：p.32-37
- 图表：3 illus., 3 tables, 22 refs.
- 分类号：1002
- issnNo：ISSN1004-4116
- isbnNo：CN 62-1191/P
From the Late Cretaceous to the Early Tertiary period, the Tethys seawater repeatedly invaded the Shacha subbasin and entered into the Kuche subbasin through the Awati strait. In order to clearly distinguish between a marine and a continental origin, the paper analyzed the late stages of evaporites of gypsum and measured sulfur isotopes in gypsum. The results showed that the sulfur isotope composition of gypsum can be used to distinguish between a marine and continental origin. The Late Cretaceous halite deposited in the Kashi Depression of the southwestern Tarim Basin have a marine origin, the Tertiary salt rocks in the Shaqa or the Kuche sub-basin were closer to continental or mixed sea water / fresh water facies in terms of their depositional environment.