| 自然界中ZnS-CdS完全类质同象系列的发现和初步研究 |
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| 引用本文： | 刘铁庚,张 乾,叶,霖,邵树勋.自然界中ZnS-CdS完全类质同象系列的发现和初步研究[J].中国地质,2004,31(1):40-45. |
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| 作者姓名： | 刘铁庚 张 乾 叶 霖 邵树勋 |
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| 作者单位： | 中国科学院矿床地球化学开放研究实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家自然科学基金项目(40172037)，中国科学院矿床地球化学开放实验室基金项目资助。 |
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| 摘 要： | 过去认为在自然界中的Cd只能有限替代ZnS中的Zn。但是，近几年笔者在研究贵州牛角塘镉锌矿床时，经电子探针、扫描电镜和透射电镜等多种方法的研究，发现锌硫化物中的Cd主要以类质同象存在，其含量可从0．8％增至37．93％；镉硫化物中的Zn同样主要以类质同象存在，其含量为2．43％～38．64％。锌硫化物与镉硫化物成渐变的过渡关系，并且Zn与Cd成很好的负相关关系，相关系数达0．99以上，形成ZnS-CdS的完全类质同象系列。这一发现无论在矿物学，还是在地球化学和矿床学上都具有重要的理论意义和实用价值。
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| 关 键 词： | 类质同象 ZnS-CdS Cd-Zn矿床 贵州 |
| 文章编号： | 1000-3657(2004)01-0040-06 |
Discovery of the complete isomorphous series of ZnS-CdS in nature and its preliminary study |
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| LIU Tie-geng,ZHANG Qian,YE Lin,SHAO Shu-xun.Discovery of the complete isomorphous series of ZnS-CdS in nature and its preliminary study[J].Chinese Geology,2004,31(1):40-45. |
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| Authors: | LIU Tie-geng ZHANG Qian YE Lin SHAO Shu-xun |
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| Institution: | Open Laboratory of Geochemistry of Mineral Deposits, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, Guizhou, China |
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| Abstract: | It was considered before that Cd can only limitedly substitute Zn in sphalerite in nature.However,in the recent study of the relationships between Cd and Zn in the Nujiaotang cadmium-zinc deposit,Guizhou,using the electron microprobe,scanning electron microscope and transmission electron microscope,the authors have found that Cd in zinc sulfide mainly exists as an isomorphous element with its content ranging from0.8%to37.93%,and that likewise Zn in cadmium sulfide also mainly exists as an isomorphous element with its content ranging from2.43%to38.64%.Zinc sulfide and cadmium sulfide show gradational relationship,and there is a good negative correlation between Zn and Cd with a correlation coefficient of>0.99,forming a ZnS-CdS complete isomorphous series.This discovery has great theoretical significance and practical value not only in mineralogy but also in geochemistry and geology of mineral deposits. |
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| Keywords: | zinc cadmium ZnS-CdS mineral series isomorphism Cd-Zn deposit Guizhou |
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