• 责任者：Zhang Zhipan (Exploration & Development Research Institute of Dagang Oilfield ; Dagang 300280 ; China) ; Zhu Youhai
• 刊名：Acta Geologica Sinica
• 出版年：2011
• 卷期：85(7)
• 关键词：泉 ; springs ; 油田水 ; oil field water ; 水文地球化学 ; hydrogeochemistry ; 羌塘盆地 ; Qiangtang Basin
• 页码：p.1233-1238
• 图表：3 illus., 1 table, 29 refs.
• 分类号：1003
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

Hydrogeochemisty has a wide application in oil and natural gas exploration and better effects have been achieved. Gas hydrate has similar origin and formation mechanism as conventional oil and gas. This study investigated hydrogeochemical anomalies of gas hydrate in the Qiangtang Basin of the Qinghai-Tibetan Plateau. 19 fountain samples were collected in the Qiangtang Basin for analysis of chemical compositions, H, O and C isotopic compositions, and aqueous methane. The fountains in the Qiangtang Basin are divided into Na₂SO₄ type and NaHCO₃ type based on the Sulin’s classification. Mineralized degree of fountains indicates that fountains are dominated by low mineralized fresh water. H and O isotopic analysis also suggests they are meteoric water in origin.