天水市西北18km处的中滩地热田面积0.7km2,该地热田是受断裂控制的裂隙性Ⅱ-3型地热田,兼有层状热储和带状热储特征,热流体主要赋存于下元古界牛头河群碎裂状硅化大理岩中,热储呈单斜状发育,属中、低温中型地热田,热水中富含多种微量元素,部分指标达到天然饮用矿泉水标准,具有较高医疗价值。它的勘查发现对促进所在城市地热资源的勘查与开发有一定的指导意义。 The Zhongtan geothermal field has an area of ​​0.7km2 at a distance of 18km northwest of Tianshui City. The geothermal field is fractured type Ⅱ-3 geothermal field controlled by faults, and has both layered thermal reservoir and zonal thermal reservoir characteristics. The thermal fluid mainly occurs in Lower Proterozoic Niutouhe group fission silicified marble, thermal storage was monoclinic development, is medium and low temperature medium geothermal field, hot water is rich in trace elements, some of the indicators to reach the standard of natural drinking mineral water, Has a high medical value. Its exploration and discovery has certain guiding significance for promoting the exploration and development of geothermal resources in the city where it is located.