摘要
六盘山地区多处有臭水泉群出露。臭水泉就是含有Na2SO4、NaCl等盐类矿物离子,并排放硫化氢(H2S)气体的高矿化度咸苦水。在系统分析以往地质资料的基础上,借助ETM卫星图像,提取臭水泉群的分布信息,通过野外实地调查、访问、取样化验,初步查明臭水泉的位置、流量、水质及其对环境的危害,结合地层岩性、地质构造特点,分析臭水泉的地质成因。分析结果表明,六盘山地区的臭水泉主要分布于马东山复背斜的南北两端及东西两翼,以上升泉的形式出露于沟底,中、新生代高含盐量地层是臭水泉群中盐分的物质来源,北东向、北东东向、近南北向断裂和构造裂隙是臭水溢出的通道。臭水泉对环境的危害主要表现在:造成局部大气质量下降,污染地表水体和河谷潜水,造成土壤盐渍化,不利植物生长,影响当地人民生活。
<Abstrcat>There are a great number of Odoriferous fountains in Liupanshan Mountain area,south Ningxia. The odoriferous fountains contains much Na2SO4·10H2O and NaCl minerals,simultaneity let H2O out.The distribution of odoriferous fountain groups are located by analysis of geological information and remote sensing image. The water of the odoriferous fountains contains Na2SO4?NaCl and H2S with high salinity. This kind saline water make causes both air and water polluted, and soil salinization in local area. The salinity in the odoriferous fountains has sources from the strata of Mesozoic and Cenozoic, which contain high salt rocks. The fractures and fissures in direction of NE and NEE and near SN are supposed to be the channels of odoriferous fountains to the suface.
出处
《地质灾害与环境保护》
2005年第2期155-160,共6页
Journal of Geological Hazards and Environment Preservation
