基于phreeqci和netpath联合反演水文地球化学过程——以小秦岭太峪水库为例
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摘要
为了研究超基性岩区山区河流水化学形成机制,笔者以小秦岭金矿区太峪水库为解剖对象,通过水文地质条件调查与测试数据的分析可知,太峪水库中水化学组分含量虽然较上游河水补给区并非普遍升高,但是矿化度有所增加,且水化学类型为HCO3·SO4-Ca.Mg,水文地球化学演化过程基于两方面化学反应和蒸发作用,以化学反应为主。①基于phreeqci正演计算了各水样点矿物饱和指数,利用netpath模拟水质质量平衡反演拟合,得出水库水质发生了Ca/Na交换和矿物溶解和沉淀作用。而水化学作用主要包括岩盐、石膏、方解石的溶解以及超基性岩矿物成分的沉淀。②通过蒸发作用使各组分质量浓度增大0.23倍。
In order to study the hydrochemistry formation mechanism of mountainous rivers in Xiaoqinling,the Taiyu reservoir in Tongguan area has been taken as a research example,the hydrogeological condition investigation has been carried out and the test data has been analyzed.The results show that the chemical components of upper valley reservoir water in recharge area is not generally increases,but its salinity increases,with the hydrochemical types of HCO3·SO4-Ca and Mg.And the hydrogeochemical evolution process is based on the two aspects of chemical reaction and evaporation,which is dominated by the chemical reaction.①The mineral saturation indexes of all sample points have been calculated by Phreeqci method,while the water mass balance has been simulated by the Netpath method.And then,it is concluded that the reservoir water quality happened Ca/Na exchange and mineral dissolution and precipitation.And the water chemistry includes the dissolution of halite,gypsum,calcite and the precipitation of ultrabasic rock mineral composition.②The quality of components has increased 0.23 times through evaporation concentration.
In order to study the hydrochemistry formation mechanism of mountainous rivers in Xiaoqinling,the Taiyu reservoir in Tongguan area has been taken as a research example,the hydrogeological condition investigation has been carried out and the test data has been analyzed.The results show that the chemical components of upper valley reservoir water in recharge area is not generally increases,but its salinity increases,with the hydrochemical types of HCO3·SO4-Ca and Mg.And the hydrogeochemical evolution process is based on the two aspects of chemical reaction and evaporation,which is dominated by the chemical reaction.①The mineral saturation indexes of all sample points have been calculated by Phreeqci method,while the water mass balance has been simulated by the Netpath method.And then,it is concluded that the reservoir water quality happened Ca/Na exchange and mineral dissolution and precipitation.And the water chemistry includes the dissolution of halite,gypsum,calcite and the precipitation of ultrabasic rock mineral composition.②The quality of components has increased 0.23 times through evaporation concentration.
引文
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董维红,苏小四,侯光才,等.反向地球化学模拟技术在深层地下水14C年龄校正中的应用---以鄂尔多斯白垩系盆地典型水流路径为例[J].水文,2008,28(5):43-48.DONG Weihong,SU Xiaosi,HOU Guangcai,et al.Application of Inverse Geochemical Modeling in 14 C Age Correction of Deep Groundwater:A Case in the Ordos Cretaceous Artesian Basin[J].Journal of China Hycrology,2008,28(5):43-48.
张文杰,谭红兵,陈喜,等.广东硇洲岛地下水化学演化及成因机理[J].水文,2012,32(3):51-60.ZHANG Wenjie,TAN Hongbing,CHEN Xi,et al.Geochemical Evolution and Formation Mechanism of Groundwater in Naozhou Island,Guangdong Provinc[J].Journal of China Hycrology,2012,32(3):51-60.
张岩,付昌昌,毛磊,等.江苏盐城地区地下水水化学特征及形成机理[J].长江流域资源与环境,2017,26(04):598-606.ZHANG Y,FU C C,MAO L,et al.Hydrochemical characteristics and formation mechanism os the groundwater in yancheng,jiangsu province[J].Resources and Environment in the Yangtze Basin,2017,26(04):598-606.
王礼恒,董艳辉,宋凡,等.甘肃石油河流域地下水补给来源与演化特征分析[J].干旱区地理,2017,40(01):54-61.WANG LH,DONG YH,SONG F,et al.Recharge sources and hydrogeochemical properties of groundwater in the Shiyou River,Gansu Province[J].Arid Land Geography,2017,40(01):54-61.
马金珠,李相虎,黄天明,等.石羊河流域水化学演化与地下水补给特征[J].资源科学,2005,27(3):117-122.MA J Z,LI XH,HUANG TM,et al.Chemical Evolution and Recharge Characteristics of Water Resources in the Shiyang River Basin[J].Resources Science,2005,27(3):117-122.
郭巧玲,熊新芝,姜景瑞.窟野河流域地表水-地下水的水化学特征[J].环境化学,2016,35(7):1372-1380.GUO Q L,XIONG X Z,JIANG J R.Hydrochemical characteristics of surface and ground water in the Kuye River Basin[J].Environmental Chemistry,2016,35(7):1372-1380.
佟浩,杨凤根,李汝君.奎河与沿岸地下水水化学特征及形成作用分析[J].水资源保护,2015,31(6):109-115.TONG H,YANG F G,LI R J.Analysis on hydro-chemical characteristics and formation mechanism of Kuihe River and its coastal groundwater[J].Water Resources Protection,2015,31(6):109-115.
党慧慧,董军,董阳,等.甘肃梨园河流域地下水水化学演化规律[J].兰州大学学报(自然科学版),2015,8(4):454-462.DANG H H,DONG J,DONG Y,et al.Evolution of the groundwater hydro-geochemistry of Liyuan River Basin in Gansu Province[J].Journal of Lanzhou University(Natural Sciences),2015,8(4):454-462.
李霄,林学钰,都基众,等.齐齐哈尔市潜水水化学演化规律分析[J].水利学报,2014,45(7):815-828.LI X,LIN X Y,DU J Z,et al.Analysis of hydrochemical evolution of phreatic water in Qiqihar City[J].Journal of Hydraulic Engineering,2014,45(7):815-828.
彭李晖,刘延锋,杨霄翼.焉耆盆地开都河北岸潜水水化学演化规律[J].地质科技情报,2013,32(6):123-130.PENG L H,LIU Y F,YANG X Y.Hydrochemical evolution of phreatic water in the northern area of kaidu river in tanqi basin[J].Geological Science and Technology Information,2013,32(6):123-130.
吴春勇,苏小四,郭金淼,等.鄂尔多斯沙漠高原白垩系地下水水化学演化的多元统计分析[J].世界地质,2011,30(2):244-253.WU C Y,SU X S,GUO J M,et al.Multivariate statistical analysis of hydrogeochemical evolution of groundwater in Cretaceous aquifer Ordos desert plateau[J].Global Geology,2011,30(2):244-253.
李云峰,李金荣,侯光才,等.从水文地球化学角度研究鄂尔多斯盆地南区白垩系地下水的排泄途径[J].西北地质,2004,37(3):91-95.LI Yunfeng,LI Jinrong,HOU Guangcai,et al.Study on Cretaceous groundwater discharge in the southern parts of Ordos basin as viewed from hydrogeochemistry[J].Northwestern Geology,2004,37(3):91-95.
张向阳,曹平,赵延林,等.金川深部超基性岩水化作用及对力学性能影响[J].矿业工程研究,2009,24(3):14-19.ZHANG Xiangyang,CAO Ping,ZHAO Yanlin,et al.Effect of hydration of ultrabasic rock on mechanical properties in deep mining of Jinchuan[J].Mineral Engineering Research,2009,24(3):14-19.
孙林华,桂和荣,陈松.皖北矿区深层地下水径流规律的地球化学反演[J].中国煤炭地质,2009,21(01):35-39.SUN Linhua,GUI Herong,CHEN Song.Use of Geochemical Inversion to Study Deep Groundwater Runoff Pattern in Northern Anhui Mining Areas[J].Coal Geology of China,2009,21(01):35-39.
钱会,李健,窦妍,等.布隆湖水化学成分的形成机制[J].地球科学与环境学报,2009,31(1):70-75.QIAN H,LI J,DOU Y,et al.Formation mechanisms of water composition of bulong lake[J].Journal of Earth Sciences and Environment,2009,31(1):70-75.
El Kadi AI,Pl Ummer L N,AGGARWAL P.NETPATH-WIN:AnInteractive User Version of the Mass-Balance Model NETPATH[J].Ground Water,2011,49(4):593-599.
CRERAR D A.A Met hod for Computing Multicomponent Chemical Equilibria Based on Equilibrium Constants[J].Geochim Cosmochim Acta,1975,39(10):1375-1384.