柴达木盆地西北部库拉木勒克萨伊河—阿拉尔河流域水化学特征分析

Hydrogeochemical Characteristics of Kulamulekesayi-Alaer?River?Valley in Northwestern Qaidam Basin

中文关键词:  库拉木勒克萨伊河—阿拉尔河流域  水化学  控制机制  主要离子来源

英文关键词:Kulamulekesayi-Alaer river basin  hydrogeochemistry  control mechanisms  major ionsources

中文摘要:

      本文运用水文地球化学常用分析方法,对库拉木勒克萨伊河—阿拉尔河流域进行了系统研究,分析了河水中主要离子特征、控制机制及其来源。结果表明：该流域为低矿化度、天然弱碱性淡水；河水类型主要为重碳酸盐型水,部分为氯化物型水；河水中的主要离子受控于岩石风化作用,流域蒸发作用逐渐显露,阿拉尔河蒸发作用较明显。河水中主要离子来自于岩盐、钾盐、硬石膏、白云石和方解石的风化溶解,并且受到少量溶解于河水中硅酸盐矿物的影响。

英文摘要:

      SInSthisSpaper,SbyStheScommonShydrogeochemicalSanalysisSmethods,SweSsystematicallySstudiedStheSKulamulekesayi-AlaerSriverSbasin,SanalyzedStheScharacteristics,ScontrolSmechanismsSandSsourcesSofStheSmainSions.STheSresultsSshowSthat:StheSbasinSwaterSisSnaturalSlow-mineralizedslightlySalkalineSfreshwater;StheSwaterSisSmainlySbicarbonate-typeSwaterSwithSpartSofStheSchloride-typeSwater;StheSmainSionsSareScontrolledSbyStheSrockSweathering;StheSeffectsSofSevaporationSonStheSwaterSgraduallySenhanced,SespeciallySinStheSAlaerSRiver.STheSmainSionsSinStheriverSareSmainlySfromStheSweatheringSandSdissolutionSofShalite,Ssylvite,Sanhydrite,dolomiteSandScalciteSwithStheSimpactSofSaSsmallSamountSofSsilicateSmineralsSdissolvedSinStheSriver.S