Geological characteristics and analysis of hydrothermal genesis in the Suijiang-1 well in Yunnan Province, China  

作　　者：SHU Qin-feng WEI Liang-shuai LI Xiao 

机构地区：[1]Institude of Exploration Technology,CAGS [2]Chengdu University of Technology

出　　处：《Journal of Groundwater Science and Engineering》2019年第1期53-60,共8页地下水科学与工程（英文版）

基　　金：supported by the 1:50 000 Hydrogeologic Survey in Wumeng Mountain Area of Hydropenia and Poverty (NO.[2016]05050-3,CGS)

摘　　要：The geothermal water hydrochemistry and isotopic characteristics of boreholes in the Suijiang-1 well in Yunnan Province were studied based on the actual drilling geology, regional geological structure and hydrogeological conditions. The analysis results show that the geothermal water is SO_4-Ca·Mg type, the recharge elevation is 1 381-1 646 m, the recharge source is atmospheric precipitation, the geothermal reservoir temperature is 42-45 ℃, and the geothermal water is controlled by lithology and geological structure conditions of study area. Atmospheric precipitation enters the groundwater circulation system through the surface karst form of the Wujiaobao anticline, northwest-southeast tensile faults, fissures and karst depression, and geothermal water formed through the rising deep cycle water temperature, then blocked by the double rivers' fault zone and drilling explosion.The geothermal water hydrochemistry and isotopic characteristics of boreholes in the Suijiang-1 well in Yunnan Province were studied based on the actual drilling geology, regional geological structure and hydrogeological conditions. The analysis results show that the geothermal water is SO_4-Ca·Mg type, the recharge elevation is 1 381-1 646 m, the recharge source is atmospheric precipitation, the geothermal reservoir temperature is 42-45 ℃, and the geothermal water is controlled by lithology and geological structure conditions of study area. Atmospheric precipitation enters the groundwater circulation system through the surface karst form of the Wujiaobao anticline, northwest-southeast tensile faults, fissures and karst depression, and geothermal water formed through the rising deep cycle water temperature, then blocked by the double rivers' fault zone and drilling explosion.

关 键 词：GEOTHERMAL water HYDROCHEMISTRY Origin ANALYSIS of hot spring 

分 类 号：TV[水利工程]