• 责任者：Wu Shenghua (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Liu Jiajun
• 刊名：Geoscience
• 出版年：2010
• 卷期：24(2)
• 关键词：重晶石矿床 ; barite deposit ; 毒重石矿床 ; witherite deposit ; 秦岭 ; Qinling Mountains
• 页码：p.237-244
• 图表：8 illus., 1 table, 22 refs.
• 分类号：1002
• issnNo：ISSN1000-8527
• isbnNo：CN11-2035/P

 More than 70 witherite and barite deposits (or points) are located in Southern Qinling Mountains, which is a unique large Ba metallogenic belt in the world.  By microthermometry analysis, the peak of fluid inclusions homogeneous temperature has a increasing trend from barite to witherite. The δ³⁴S values of barite of the deposits are higher than those of the same period water of ocean basin (except one δ³⁴S value of barite of Wenyu deposit, which is close to those of the same period water of ocean basin), which shows that the ³⁴S enrichment in barite could be due to the reduction from germs to sulfate.  Witherite deposits of Southern Qinling exist different ranges of δ¹³C and δ¹⁸O value, and C of witherite comes from reaction of organic matter.