| 袁星芳.胶东半岛洪水岚汤温泉水化学特征与成因分析[J].地质与勘探,2020,56(2):427-437 |
| 胶东半岛洪水岚汤温泉水化学特征与成因分析 |
| Hydrochemistry and genesis of the Hongshuilantang hot spring in the Jiaodong Peninsula |
| 投稿时间：2019-05-06 修订日期：2019-08-26 |
| DOI：10.12134/j.dzykt.2020.02.017 |
| 中文关键词: 洪水岚汤温泉 水化学 同位素 成因 胶东半岛 |
| 英文关键词: Hongshuilantang hot spring, hydrochemistry, isotope, genesis, Jiaodong Peninsula |
| 基金项目:山东省科技厅项目（编号：2019GSF109053）和山东省第六地质矿产勘查院基金项目（编号：KY2019012）联合资助 |
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| 中文摘要: |
| 胶东半岛蕴藏着丰富的低温地热资源，以温泉为主要出露方式。洪水岚汤温泉位于胶东半岛东部威海市境内，出露在阳泉河北岸的一级阶地，出露标高为66.83m，水温约69℃，下伏基岩为侏罗纪的二长花岗岩。为查明其水化学特征及成因，本文采用同位素水文地球化学方法进行研究。水化学成分表明：温泉水中主要阳离子为Na+，主要阴离子为HCO3-、SO42-，水化学类型为HCO3?SO4-Na，pH值为7.6，总溶解性固体为610.6mg/L，F-含量为4.2mg/L，偏硅酸含量为98.8mg/L。氢、氧同位素分析结果显示：温泉热水补给来源为大气降水，估算温泉热水补给高程为427~599m，地下热储温度约为106.25℃，地下热水循环深度约为2091m。综合分析洪水岚汤温泉成因模式为：在正棋山山区获得大气降水入渗补给后，沿F1断裂破碎带下渗经历深循环获得大地热流加热后上升，上升过程中混入浅层地下水，在第四系静水压力最小的部位出露成泉。 |
| 英文摘要: |
| There exist lots of low-temperature geothermal resources in the Jiaodong Peninsula, most of which are exposed as hot springs. The Hongshuilantang hot spring, located in Weihai city, eastern Jiaodong Peninsula, outcrops in the first-order terrace of the Yangquan river with an elevation +66.83m, temperature 69℃, underlain by Jurassic monzonitic granite. To clarify its hydrochemical characteristics and genesis, an isotope hydrogeochemistry analysis was made in this work. The hydrochemistries of the Hongshuilantang hot spring water are as follows: pH value of 7.6, TDS of 610.6mg/L, F contents of 4.2mg/L, and H2SiO3 of 98.8mg/L. The hot water is of HCO3?SO4-Na type. Stable hydrogen and oxygen isotopes indicate that the hot spring is of meteoric origin. The elevation of the recharge area of the hot spring is between +427m and +599m, the temperature of the geothermal reservoir is approximately 106.25, and the circulation depth of geothermal groundwater is about 2091m. The genetic model of the Hongshuilantang hot spring is as follows: After receiving recharge from infiltration of precipitation in Zhengqishan mountain area, the infiltration along the F1 fracture zone undergoes a deep cycle to obtain the terrestrial heat flow heating and then rises. In the process of rising, the shallow groundwater is mixed in, which is exposed in the part of the lowest Quaternary hydrostatic pressure. |
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