摘要
攀枝花地区昔格达土系粉砂壤土和粉砂土 ,土壤中原生矿物主要为石英和长石 ,次生矿物主要为蒙脱石、伊利石和高岭石。昔格达土不同层位稀土元素分布特征相似 ,稀土元素在成土过程中没有明显的地球化学迁移 ,对母岩具有一定的继承性。昔格达土各层位 Ti、V、Cr、Ni、Cu、Zn、Pb、As、Cd等元素具有较高的地球化学背景 ,在地表水和地下水的作用下容易释放进入环境 ,造成环境污染。
The Xigeda soil is made up of silty loam and silt soil in Panzhihua region, Minerals of which are mainly quartz and plagioclase with clay minerals, montmorillonite, illite and kaolinite. That the REE patterns are similar in different soil layers suggests that REE should be inactive during the pedogenesis. The trace elements, such as Ti, V, Cr, Ni, Cu, Zn, Pb, As and Cd, have high geochemical background contents in the Xigeda soil and are mainly concentrated in the top soil in Panzhihua region. Some elements may be released and pollute the environment while the water leaches the soil. the stability of the Xigeda soil is very weak, which would be easy to induce geological disasters.
出处
《地质灾害与环境保护》
2002年第4期16-20,共5页
Journal of Geological Hazards and Environment Preservation
基金
中国博士后科学基金
四川省青年科技基金资助
关键词
环境地球化学
昔格达土
攀枝花地区
environmental geochemistry
Xigeda soil
Panzhihua region
