河北北部四处温泉的水化学特征及成因分析 Hydrochemical Characteristics and Formation of Four Hot Springs in Northern Hebei期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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河北北部四处温泉的水化学特征及成因分析

引用本文：	王艺璇,周训,陈梦颖,马静茹,海阔,肖萌,尚子琦,张颖,余鸣潇.河北北部四处温泉的水化学特征及成因分析[J].现代地质,2022,36(2):494-506.

作者姓名：	王艺璇周训陈梦颖马静茹海阔肖萌尚子琦张颖余鸣潇

作者单位：	1. 中国地质大学(北京) 水资源与环境学院,北京 1000832. 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

基金项目：	国家自然科学基金项目(42172269,41772261)；

摘要：	以河北北部承德地区的4处温泉,漠河沟温泉(A10)、三道营温泉(A11)、山湾子温泉(A12)和北大坝温泉(A13)为研究对象,根据2010年与2018年的温泉水样测试数据,分析温泉的水化学特征,并总结其成因模式。研究区出露地层主要有中新元古界、二叠系、三叠系、侏罗系、白垩系和新近系以及第四系,并伴随有大量侵入岩岩体。温泉的出露温度为36~75 ℃,pH值为7.2~8.2,TDS均小于1 g/L。研究区温泉阳离子均以Na⁺占绝对优势,毫克当量百分数在90%以上,阴离子主要以HC $O 3 -$ 和S $O 4 2 -$ 为主,4处温泉的水化学类型分别为SO₄·HCO₃-Na型、HCO₃·SO₄-Na型、HCO₃-Na型和SO₄·HCO₃-Na型,且温泉的偏硅酸和F^-含量高。研究区温泉稀土元素总含量(∑REEs)为0.030~15.525 μg/L,主要以碳酸盐络合物和F的络合物形式存在;地下热水的稀土元素球粒陨石标准化配分模式较为平缓,轻稀土元素略显富集。研究区温泉水补给主要源于大气降水,利用 SiO₂ 温标估算的温泉地下热储温度为85~125 ℃,地下热水经深循环后通过接触带、破碎带或导水断裂上升出露地表。
关键词：	温泉稀土元素同位素热储温度河北
收稿时间：	2021-11-18
修稿时间：	2022-02-22
Hydrochemical Characteristics and Formation of Four Hot Springs in Northern Hebei

WANG Yixuan,ZHOU Xun,CHEN Mengying,MA Jingru,HAI Kuo,XIAO Meng,SHANG Ziqi,ZHANG Ying,YU Mingxiao.Hydrochemical Characteristics and Formation of Four Hot Springs in Northern Hebei[J].Geoscience——Journal of Graduate School,China University of Geosciences,2022,36(2):494-506.

Authors:	WANG Yixuan ZHOU Xun CHEN Mengying MA Jingru HAI Kuo XIAO Meng SHANG Ziqi ZHANG Ying YU Mingxiao

Institution:	1. School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China2. MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences, Beijing 100083, China

Abstract:	This study examined four hot springs in northern Hebei, namely Mohegou (A10), Sandaoying (A11), Shanwanzi (A12) and Beidaba (A13). Through analyzing hot-spring water samples in 2010 and 2018, we unravel the hydrochemical characteristics of the springs and elucidate their formation. Local stratigraphy comprises mainly the Mesoproterozoic, Permian, Triassic, Jurassic, Cretaceous, Neogene and Quaternary sequences, with large number of plutonic units. The hot spring temperatures range from 26 to 75 ℃, and the pH and TDS is 7.2-8.2 and < 1 g/L, respectively. The cations of the local hot springs are dominated (> 90%) by Na⁺, whilst the anions are dominated by HC $O 3 -$ and S $O 4 2 -$ . The hydrochemical types of the four hot springs are of SO₄·HCO₃-Na, HCO₃·SO₄-Na, HCO₃-Na and SO₄·HCO₃-Na type. The local hot springs have generally high H₂SiO₃ and F^- concentrations, and their total REE contents range from 0.030 to 15.525 μg/L, existing mainly as carbonate and fluorine complexes. The chondrite-normalized REE patterns of the hot water samples are relatively gentle with LREE enrichment. The local hot springs are mainly recharged by atmospheric precipitation, and the geothermal reservoir temperatures are estimated to be 85-125 ℃ with the SiO₂ geothermometer. The thermal groundwater may have undergone deep circulation, rises along the contact zone, fracture zones and faults, and emerges as hot springs on the land surface.

Keywords:	hot spring rare earth element isotope geothermal reservoir temperature Hebei

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