阿尔山泉群水化学特征与水岩作用研究

发布时间：2018-04-03 06:52

本文选题：阿尔山泉群　切入点：水化学　出处：《中国地质大学(北京)》2017年硕士论文

【摘要】：阿尔山泉群久负盛名,充沛的泉水资源、丰富的矿物元素吸引人们来到这里旅游、疗养。随着旅游业的发展,阿尔山当地对泉群的开发日渐增多。在这种背景下,我们有必要对阿尔山泉群作更深入的研究,以充分了解其成分、形成,对更有效的利用泉水资源提供支持。本文对阿尔山泉群展开研究,结合水文地质条件、构造条件对冷泉和温泉的水化学组分作了分析,利用Phreeqc对典型冷泉进行了反向路径模拟、对典型温泉进行了混合作用模拟。研究结果表明,冷泉水化学类型以Ca.Na-HCO_3.SO_4型、Na.Ca-HCO_3型为主,温泉水化学类型均为Na-HCO_3型水。利用Gibbs图,确定了阿尔山泉群的化学组份来自于水岩作用。通过对各组分相关性分析,确定了泉水Na~+、Ca~(2+)、Mg~(2+)、SO_42~-、HCO_3~-、SiO_2、F-、Sr~(2+)的可能矿物来源。利用Phreeqc对泉号0和五脏泉进行了反向路径模拟。泉号0在形成过程中发生了钠长石、岩盐、方解石、石膏、少量氟石、CO_2、少量绿泥石的溶解作用和少量伊利石、少量钙长石的沉淀作用,以及强烈的阳离子交替作用;五脏泉的水岩作用表现为钠长石、岩盐、钙长石、石膏、CO_2、少量绿泥石、少量氟石、少量天青石的溶解作用和蒙脱石、少量伊利石的沉淀作用,以及强烈的阳离子交替作用。利用Phreeqc对30号泉进行了混合作用模拟。模拟结果显示,冷热水混合后,主要发生了钠长石、石膏、伊利石、CO_2、少量岩盐的沉淀和蒙脱石、钾长石、少量天青石、少量氟石的溶解,以及Na~+、Sr~(2+)的阳离子交替作用。阿尔山泉群的水化学组分和水岩作用受到了区内众多断层、节理裂隙的控制,泉水在不同的裂隙中径流循环,造成矿物来源、矿物转移量的多样结果,即使出露位置相近,泉水的组分特征、水岩作用过程依然有所区别。
[Abstract]:Alshan spring group has long been famous, abundant spring water resources, rich mineral elements to attract people to visit here, recuperate.With the development of tourism, the development of spring group in Alshan is increasing day by day.In this context, it is necessary for us to do more in-depth research on the Alshan spring group in order to fully understand its composition, form and provide support for more effective use of spring water resources.In this paper, the hydrochemical composition of cold spring and hot spring is analyzed in combination with hydrogeological conditions, and the reverse path of typical cold spring is simulated by Phreeqc, and the mixing action of typical hot spring is simulated.The results show that the chemical types of cold spring water are mainly Ca.Na-HCO_3.SO_4 type Na 路Ca-HCOC _ 3, and the chemical types of hot spring water are all Na-HCO_3 type water.The chemical composition of the Alshan spring group is determined by Gibbs diagram.Based on the analysis of the correlation of the components, the possible mineral sources of the spring water Na ~ (2) ~ (C ~ (2)) C _ (2) C _ (2) O _ (42) -C _ (HCO3) -SiO _ (2) (F ~ (+) S ~ (+ +) ~ (2)) have been determined.Phreeqc was used to simulate the reverse path of Spring 0 and Wuzang Spring.During the formation of Quanjiao, albite, rock salt, calcite, gypsum, a small amount of fluorite and CO _ 2, a small amount of chlorite, a small amount of Illite, a little calcium feldspar precipitate, and strong cationic alternation occurred.The water-rock action of Wuzhang spring is albite, rock salt, calcium feldspar, gypsum CO2, a small amount of chlorite, a small amount of fluorite, a small amount of celadite, montmorillonite, a small amount of Illite, and a strong cationic alternation.The mixed action of spring No. 30 was simulated by Phreeqc.The simulation results show that albite, gypsum, Illite CO2, a small amount of rock salt precipitate and montmorillonite, potassium feldspar, a small amount of celadite, a small amount of fluorite, and the cation alternating action of Na ~ (+ +) Sr ~ (2) are mainly occurred after the mixing of cold and hot water.The hydrochemical composition and the action of water rock in the Alshan spring group are controlled by many faults, joints and fractures in the area. The spring water circulates through different fractures, resulting in various results of mineral sources and mineral transfer, even if the location of the outcrop is similar.The composition characteristics of spring water and the process of water-rock interaction are still different.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P641.6

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