摘要
铅锌矿床是镉主要来源,在其开采过程中,镉等重金属有毒元素会产生次生富集,同时不可避免向环境大量释放,严重影响周围环境。本文介绍了铅锌矿的表生地球化学研究现状,提出应加强镉等重金属元素在表生风化作用下活化-迁移-富集机理及影响因素,定量地描述镉等重金属元素的释放过程等地球化学研究,以揭示镉等有害元素在铅锌矿山表生风化过程中的活化、迁移、次生富集的规律及机理,探讨其通过岩(矿)石-水-土壤-植物影响环境和人类健康过程,这不仅对于铅锌矿山环境有重要意义,而且也将揭示一些矿床中镉高度富集机理,从而在理论上丰富镉的地球化学内容,对研究铅锌矿床中元素循环、矿山修复、环境评价及生态效应等具有重要意义。
Cadmium came mainly from Pb-Zn deposits and it will be released during exploitation of Pb-Zn ores, leading to environmental pollution around mining area. The paper introduces the st＇atus-quo of research on the supergenic geochemistry of cadmium, suggesting that it is very important to study the method and the mechanism of activization, transport and secondary enrichment of Cd and other toxinic elements during supergene weathering and leaching, and find how it effects environment and human being health by rocks （ore）, water, soil and plant. It will enrich the content of supergene geochemistry of Cd, and be helpful for the cycle of elements, harnessing of mines, appraisal of environment and ecologic effects in exploitation of Pb-Zn ores.
出处
《地球与环境》
CAS
CSCD
北大核心
2006年第1期55-60,共6页
Earth and Environment
基金
国家自然科学基金(40373021)
中国科学院矿床开放实验室基金
广东省博士后基金
关键词
铅锌矿床
镉
表生地球化学
环境影响
Pb-Zn deposit
cadmium
hypergenic geochemistry
environmental effect
