四川理塘毛垭温泉地质构造环境及成因分析

Analysis on the geotectonic environment and the forming factors of the hot spring in Maoya

通过理塘毛垭温泉现场实地考察,对毛垭温泉所处的地质构造环境及泉华层堆积层的组成、成因和物质来源进行研究。分析认为,毛垭温泉属于义敦—理塘、理塘—德巫活动断裂带上出露的构造上升泉,断裂带构造裂隙为温泉水通道;温泉水的来源是中深层循环热水与浅层地下水补给冷水混合体;其水温水量的变化受区域构造应力的控制,它的变化能反映这一区域构造应力场的动态变化信息。

Based on the fidd investigations for Maoya hot spring, Litang County, the geotectonic environment, the forming factors of sinter hyer and the material origin of sinter Layer around Maoya hot spring are discussed. Maoya hot spring is located in the position between Yuduen- Litan and Litan- Dewu faults. The hot spring mixes the cycle water in deeper layer with the ground water in the shallow layer. The hot spring water passes through the rift of the faults. The regional tectonic stress controls the temperature of this hot spring. So the changes of the spring temperature reveal the stress changes of this region.