An isotopic geoindicator in the hydrological cycle

作者：Pang Zhonghe^*; Kong Yanlong; Li Jie; Tian Jiao

来源：15th Water-Rock Interaction International Symposium (WRI), 2016-10-16 To 2016-10-21.

DOI：10.1016/j.proeps.2016.12.135

• Hydrological cycle
• stable isotope
• geoindicator
• delta H-2 - delta O-18 diagram

This paper synthesizes the research findings on the stable isotopes (delta H-2 - delta O-18 ) of the water molecular, with respect to applications in tracing the natural water cycle. A general purpose diagram of delta H-2 versus delta O-18 may serve as a geo-indicator of various circulation processes the water is involved: hydrological, hydro-meteorological and hydro-geochemical. Equations and explanations are provided for a total of 13 lines in the diagram that are illustrated to show the fractionation and changes of stable isotopes when experiencing different processes: GMWL; Moisture recycling line; evaporation line, mixing lines with seawater and andesitic water, exchange lines with H2S, CO2, silicate mineral, hydrocarbon, carbonate and clay minerals. These lines serve as a basis in using water stable isotopes in the hydrological, hydrogeological and paleo-climate research.

• 出版日期2017
• 单位中国科学院地质与地球物理研究所兰州油气资源研究中心; 中国科学院大学; 中国科学院地质与地球物理研究所