镇沅县老王寨金矿河流沉积物重金属污染探讨  

A PROBE INTO THE HEAVY METAL POLLUTION OF RIVER SEDIMENT IN LAOWANGZHAI AU OREFIELD,ZHENYUAN

作　　者：杨舒然[1] 

机构地区：[1]云南国土资源职业学院,云南昆明652501

出　　处：《云南地质》2015年第3期460-464,共5页Yunnan Geology

摘　　要：通过对老王寨金矿河流沉积物,分别于5个点7条剖面连续采样,着重分析Hg、As、Pb三种重金属含量,结果三种元素在沉积物表层含量较高,元素活性顺序为Hg>Pb>As。并逐年向下游迁移,随着矿业开发规模的扩大,三种重金属元素的污染将逐年扩大。According to the continuous sampling of 7 sections of 5 spots, focus on Hg, As, Pb, the analysis results show high contents of surface sediment, activity sequence Hg 〉 Pb 〉 As. The pollution migrates toward the lower reaches year by year. The pollution of 3 heavy metals will extend year by year following the expanse of min- ing development scale.

关 键 词：河流沉积物 重金属污染 空间分布 云南镇沅老王寨 

分 类 号：P66[天文地球—地质学]