怒江跃进桥温泉水化学特征及成因分析

摘要

跃进桥温泉为上升泉群,其热水化学类型为HCO<,3>-Ca型.根据8D、δ<'18>O稳定同位素分析温泉水源为大气降水;δ<;18>O稳定同位素确定其补给高程为2 050 m;<'3>H放射性同位素确定温泉水的年龄为(10～20)a.跃进桥温泉的热源来自区域高热流背景,称嘎断裂、F1断裂起到导热导水作用,其成因模式为大气降水补给的断裂渗入循环型中、低温地热系统.%Yuejingqiao hot spring is Rise Springs. The hot water chemical type is HCO3--Ca2+ . According to analysis of the stable isotope δD, δ18O,source of the hot spring water is mospheric water;δ18O stable isotopes determine that the supply elevation is 2 050 m. The 3H radioactive isotope recognizes the age of hot springs water as ( 10～ 20) years. The heat of the springs comes from the area of high heat flux background,Chengka and F1 faults play the role of thermal and water conductivity. The formatiion model is low-temperature geothermal systems which the atmosphere water recharge and infiltration circular by fault.