摘要
在收集以往自然重砂测量、土壤测量资料的基础上,结合1∶5万土壤地球化学调查,进行苏州西部土壤中汞的分布特征及成因解析。结果表明,研究区土壤中Hg含量变化范围较大,介于0.023~5.012 mg/kg之间,平均值高达0.386 mg/kg,远高于苏州地区表层土壤及太湖水网平原表层土壤Hg含量平均值,土壤汞污染比较严重。区内辰砂矿物与土壤中Hg的空间分布具有较高的耦合性,与区内断裂构造、矿床分布有关,表明区内土壤中的汞、辰砂分布是多金属矿成生作用的产物,人类活动的影响不大。
On the basis of collecting the data of natural heavy sand survey and soil survey,combined with 1∶50000 soil geochemical survey,the distribution characteristics and causes of soil mercury in the west of Suzhou were analyzed.The results showed that the Hg content in the soil of the study area varies widely,ranging from 0.023 to 5.012 mg/kg,with an average of 0.386 mg/kg,which is much higher than the average Hg content in the surface soil of Suzhou area and Taihu Lake plain,indicating that soil mercury pollution is serious.The spatial distribution of Hg between cinnabar minerals and soil in the area has a high rate of coupling,which is related to the fault structure and the distribution of ore deposits in the area,indicating that the distribution of Hg and cinnabar in the area is the product of polymetallic mineral generation and has little relevance with human activities.
作者
匡俊
杨涛
Kuang Jun;Yang Tao(No.4 Geological Team of Jiangsu Geology&Mineral Exploration Bureau,Suzhou 215129,Jiangsu,China)
出处
《地质学刊》
CAS
2022年第3期285-290,共6页
Journal of Geology
基金
江苏省省级耕地污染防治项目“典型污染耕地生态修复及安全利用示范”(苏财建[2017]123号)。
关键词
汞
分布特征
成因
土壤
苏州西部
mercury
distribution characteristic
genesis
soil
western Suzhou
