【摘要】 为了对泰莱盆地的地下水资源进行合理开发利用,通过现场调查以及测定盆地各类型地下水的水化学成份,初步研究了该区域的地下水化学类型分布特征及其控制因素.结果表明,泰莱盆地各地下水中阳离子以Ca²⁺和Mg²⁺为主,阴离子以HCO₃^-和SO₄^2-为主,主要水化学类型有HCO₃-Ca型、HCO₃·SO₄-Ca型、HCO₃-Ca·Mg型、HCO₃·SO₄-Ca·Mg型和SO₄-Ca·Mg型,部分地区NO-3较高.研究区地下水中,离子基本以牟汶河为中轴线,由盆地边缘基岩出露区向盆地内部,呈逐渐上升趋势.盆地内地下水中,离子含量主要受水—岩作用的影响,其主要来源是区域内方解石、白云石等碳酸盐岩和石膏等硫酸盐岩的共同溶解.更多还原

【Abstract】 With the purpose of exploitation development and utilization of the groundwater resource in Tailai Basin,a field investigation and determination of the hydrochemical composition of various types of groundwater in the basin were carried out for primary study on the distribution characteristics and control factors of groundwater chemical types in the area. The results showed that the main cations of various groundwater of Tailai Basin are Ca²⁺ and Mg²⁺,and the main anions are HCO₃^- and SO₄^2-. The main hydro chemical types are HCO₃-Ca,HCO₃·SO₄-Ca,HCO₃-Ca·Mg,HCO₃·SO₄-Ca·Mg and SO₄-Ca·Mg,with higher NO₃^- in some areas. In the study,ions in the groundwater,basically taking the Muwenhe River as the central axis,show a gradual upward trend from bedrock outcrops on the basin edge to the internal basin. The content of ions in the groundwater of the basin is mainly affected by water-rock interaction, the main sources of which are co-dissolution of carbonate rocks such as calcite and dolomite and sulfate rocks such as gypsum in the area.更多还原