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现代地质 ›› 2017, Vol. 31 ›› Issue (04): 822-831.

• 水文地质学 • 上一篇    下一篇

云南兰坪盆地羊吃蜜温泉水化学特征与成因分析

王洁青1(), 周训1,2(), 李晓露1, 王蒙蒙1, 沈晔1,2, 方斌1,2   

  1. 1.中国地质大学(北京) 水资源与环境学院,北京 100083
    2.中国地质大学(北京) 地下水循环与环境演化教育部重点实验室,北京 100083
  • 收稿日期:2017-01-18 修回日期:2017-04-02 出版日期:2017-08-10 发布日期:2017-09-15
  • 通讯作者: 周训,男,教授,博士生导师,1963年出生,水文地质专业,主要从事地下热水(温泉)、海岸带地下水、地下卤水(盐泉)、矿泉水、地下水循环及其模拟等的研究。Email:zhouxun@cugb.edu.cn
  • 作者简介:王洁青,女,硕士研究生,1992年出生,地质工程专业,主要从事水文地质学等的研究。Email:1071036333@qq.com
  • 基金资助:
    国家自然科学基金项目(41572223);中央高校基本科研业务费专项资金资助项目(2652016098);中央高校基本科研业务费专项资金资助项目(2652015426)

Hydrochemistry and Formation of the Yangchimi Hot Spring in the Lanping Basin of Yunnan

WANG Jieqing1(), ZHOU Xun1,2(), LI Xiaolu1, WANG Mengmeng1, SHEN Ye1,2, FANG Bin1,2   

  1. 1. School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China
    2. MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences, Beijing 100083, China
  • Received:2017-01-18 Revised:2017-04-02 Online:2017-08-10 Published:2017-09-15

摘要:

位于云南省云龙县的羊吃蜜温泉自巨厚灰岩溶隙向外流出。温泉区沿河谷分布有第四系砂卵石,下伏地层为二叠系—三叠系碳酸盐岩。泉水共有泉眼3个,水温为35.6~35.9 ℃,流量约0.25 m3/s,pH值6.3~6.5,总溶解性固体(TDS)为0.982~1.116 g/L,F-含量为0.86~1.92 mg/L,偏硅酸为24~24.2 mg/L。泉水中的主要阳离子为Na+、K+、Ca2+和Mg2+,主要阴离子为$\mathrm{SO}_{4}{ }^{2-}$$\mathrm{HCO}_{3}{ }^{-}$和Cl-,水化学类型为HCO3·SO4-Ca型。氢、氧稳定同位素显示,温泉热水来源于大气降水;估算的热水补给高程为2 500 m左右;地下热储温度为60~70 ℃;地下热水循环深度约为1 255 m。羊吃蜜温泉地处云南兰坪盆地红色含盐地层中突起的石灰岩分布区,地下水在补给区获得大气降水入渗补给后沿巨厚灰岩含水层经历深循环获得大地热流加热后上涌在河谷流出地面,是侵蚀岩溶低温温泉。

关键词: 温泉, 水化学, 同位素, 成因, 云南

Abstract:

The Yangchimi hot spring is located in the Yunlong County of Yunnan Province, China, and flows out from the karstic fractures in limestone. Quaternary sands and pebbles occur along the river valley around the spring, and Permian and Triassic carbonates outcrop and underlie the unconsolidated sediments. There are three spring orifices with water temperature of 35.6-35.9 ℃, and the total flow rate is 0.25 m3/s.The chemical characteristic of the hot spring water is as follows: pH=6.3-6.5, TDS=0.982-1.116 g/L, F-=0.86-1.92 mg/L and H2SiO3=24-24.2 mg/L. The hot water belongs to HCO3·SO4-Ca type. The 2H and 18O isotopes of the hot spring water indicate that the hot water is of meteoric origin. The recharge altitude is estimated as 2 500 m or so, the temperature of the geothermal reservoir as 60-70 ℃, and the depth of the groundwater circulation as approximately 1 255 m. The Yangchimi hot spring lies in the carbonate in the uplift area surrounded by the redbed in the Lanping Basin in Yunnan. Groundwater receives recharge from infiltration of precipitation in the recharge area, undergoes deep circulation in the carbonate aquifer, obtains heat from heat flow and flows up to the surface in the river valley. It is an erosion karst hot spring with low temperature.

Key words: hot spring, hydrochemistry, isotope, genesis, Yunnan

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