Geochemical Study on Boron Isotopes in the Yangbajing Geothermal Field , Tibet
详细信息
- 责任者：Lu Yuanyuan (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Zhao Ping
- 刊名：Chinese Journal of Geology
- 出版年：2012
- 卷期：47(1)
- 关键词：地热田 ; geothermal fields ; 硼同位素 ; boron isotopes ; 西藏 ; Tibet
- 页码：p.251-264
- 图表：6 illus., 1 table, 48 refs.
- 分类号：1005
- issnNo：ISSN0563-5020
- isbnNo：CN11-1937/P
摘要
Based on previous geothermal tracing researches by boron isotopes, and by utilizing the state-of-art MC-ICP-MS analytical technique for measuring boron isotope ratios, the mixing processes between deep geothermal water and surface cold water of the Yangbajing (YBJ) geothermal field in Tibet were determined. And then, the authors propose that B is derived from host altered granite according to regional geological features, and the host altered granite should have similar boron isotope ratios to the deep geothermal water. Accordingly, some complicated factors will be introduced into the two end-member mixing model in the YBJ since there is only little difference of boron isotopes between two end-members.