摘要
对拜仁达坝铅锌矿矿集区3个多金属矿区的3个土壤粒级样品中Zn、Pb、Cu、Ag 4种主要成矿元素的7种赋存形式(水溶态、离子交换态、碳酸盐结合态、有机质结合态、铁锰氧化物结合态、硫化物结合态和残渣态)进行了测定。研究结果表明:1银都矿区土壤中Zn、Pb和Ag浓度最高,而道伦达坝矿区土壤中Cu的浓度最高;2拜仁达坝矿集区土壤中Zn、Pb和Cu主要以残渣态形式赋存,而Ag主要以铁锰氧化物结合态和硫化物结合态形式赋存;3拜仁达坝矿集区Zn、Pb和Cu元素在3个土壤粒级中的各个赋存形式所占的比例略有差别,但总体上大致相同,而Ag元素的赋存状态在3个土壤粒级的差异较大;4 3个矿区土壤中水溶态、离子交换态、碳酸盐结合态和有机质结合态的Zn和Pb差别不大;铁锰氧化物结合态、硫化物结合态和残渣态的Zn和Pb,以及Cu和Ag的7个赋存状态在3个矿区的差别较大。
The occurrence modes（ i. e. water-soluble,ion exchangeable,carbonate bound,organic matter bound,Fe-Mn oxide bound,sulfide bound and residual form） of Zn,Pb,Cu,Ag in three different soil fractions in Bairendaba lead and zinc ore-concentrated area were analyzed. The results show that there were the highest concentrations of Zn,Pb and Ag in soil of Yindu deposit,while in Daolundaba deposit the concentration of Cu was the highest. Zn,Pb and Cu were mainly in the form of residue,while Ag was mainly in the form of sulphide combination state and Fe-Mn oxide bound in Bairendaba lead and zinc ore-concentrated area. The occurrence modes of Zn,Pb and Cu in three different soil fractions were slightly different,while the states of Ag in soil of three grades were different. Water-soluble,ion exchangeable,carbonate bound and organic matter bound of Zn and Pb had littledifference in three deposits,while the differences of other occurence modes of Zn,Pb and Cu from the occurences of Ag were bigger.
出处
《世界地质》
CAS
2016年第1期100-107,共8页
World Geology
基金
国土资源部行业专项"深部探测技术与实验研究"项目(Sino Probe--04--05--02)资助
关键词
土壤
赋存形态
成矿元素
拜仁达坝矿集区
内蒙古
soil
occurrence mode
ore-forming elements
Bairendaba deposit
Inner Mongolia
