广西龙胜矮岭温泉的形成条件及水化学特征

Forming Condition and Hydrochemical Characteristics of Hot Springs in Longsheng Ailing

矮岭温泉为一高热、大流量的矿泉,其热量源自于地下水在深循环过程中与深部高温岩石的热对流作用以及地壳深部的热液活动。由于温泉补给区面积大,降雨量充沛,该泉水的流量较大。地下水在活动断层破碎带内向深部循环过程中,与围岩发生复杂的地球化学作用,使地下水富有十多种人体必需的元素及二十多种对人体有益的元素。该温泉水质为富含偏硅酸的超低钠重碳酸钙镁型水。温泉的流量、水温及其化学成分常年保持不变,且含有适量的氡,是一处较好的浴疗矿泉水。为确保矿泉水资源不会枯竭,建议在今后的开采过程中要严格按造设计要求来控制开采量;为防治水源污染,也应尽快设立三级防护带。

The hot spring in Ailing is a mineral one in high temperature and high flow rates. The heat comes from deep crust. The heat is generated not only by the hydrothermal activities in deep circulation zone, but also by the heat convection between groundwater and deep rocks. Due to the large recharge area of the spring and abundant rainfall in the region, the hot springg flow rate is very high. When groundwater goes deep along the fault fracture, a series of complex ge- ochemical reactions between ground water and deep rocks were happened, during which more than ten kinds of essential elements for people and over twenty favorable elements dissolved into the water. Thus, the hot spring has low content of sodium and high content of calcium bicarbonate magnesium. Owe to its low flow rate, stable temperature and high mineral elements content, the spring is suitable for balneotherapy. Therefore, to protect its water resources from pollution and ex- haustion, the exploitation must comply with design requirements and three protection zone must be set up as soon as possi- ble.