摘要
对贵州都匀牛角塘富镉锌矿的研究发现该矿床高度富集镉 ,矿石中镉含量一般为 2 2 84× 1 0 -6～ 9850× 1 0 -6,最高为 1 3 4 0 0× 1 0 -6,比地壳克拉克值 ( 0 .2× 1 0 -6)高 5～ 6个数量级 ,比工业品位高n× 1 0～n×1 0 2 倍 ,且其储量达到大型矿床的规模 ,在世界上十分罕见。镉主要以类质同象存在于闪锌矿中 ,少量镉以硫镉矿等独立矿物形式存在于矿床的氧化带 ,是风化淋滤过程中形成的镉的次生矿物。
Cd is rich in the Niujiaotang zinc deposit, Duyun, Guizhou. The average content of Cd lies between \{2284\}×10\+\{-6\}～\{9850\}×10\+\{-6\},with the maximum \{13400\}×10\+\{-6\}, 10\+5～10\+6 times higher than the Clarke value of the Earth's crust and n×10～n×10\+2 times higher than the pay grade of Cd. The reserves of Cd are up to those of a megadeposit. Cd is hosted mainly in sphalerite as isomorphic impurities. There are some independent minerals of Cd, which are secondary minerals formed during weathering and leaching, such as greenockite, otavite and oxides of Cd in the oxidized zone of the deposit.
出处
《矿物学报》
CAS
CSCD
北大核心
2001年第1期115-118,共4页
Acta Mineralogica Sinica
基金
国家自然科学基金重点项目!(编号 :4963 3 110 )
中国科学院矿床地球化学开放研究实验室基金项目
贵州省科学技术基金项目
关键词
镉锌矿床
赋存状态
分布
贵州
类质同象
氧化带
cadmium
Niujiaotang Cd\|rich zinc deposit
existing form
distribution
Duyun
Guizhou
