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辉碲铋矿单矿物的化学分析 总被引：1，自引：1，他引：1
辉碲铋矿物经ＨＮＯ３－ＫＣｌＯ３溶解，用火焰原子吸收法或乙二胺四乙酸二钠事滴定法测定Ｂｉ，火焰原子吸收法测定Ｔｅ、Ｆｅ、Ｃｕ，３，３＇－二氨基联苯胺光度法测定Ｓｅ，硫酸重量法测定Ｓ。其结果与矿物化学成分理论值十分接近，主、次量元素平行测定６次，其ＲＳＤ小于０．８％，痕量元素ＲＳＤ（ｎ＝６）小于１０％。 相似文献
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辉碲铋矿单矿物的主次痕量元素分析 总被引：4，自引：1，他引：4
建立了一个单矿物分析流程，制备试样溶液后，采用ＩＣＰ－ＡＥＳ法、ＡＡＳ法、分光光度法、容量法和催化极谱法，完成了辉碲铋矿单矿物主、次和痕量元素Ｂｉ和Ｔｅ在测定中的相互干扰情况；对主元素的测定方法进行了精密度试验，对于含Ｔｅ３６．３０％的试样测定６次，其ＲＳＤ为０．６６％，对于含Ｂｉ５８．４５％的试样平行测定９次，其ＲＳＤ为０．０７２％。为碲多金属矿床辉碲铋矿研究提供了块状、稠密浸染状和浸染状矿石中 相似文献
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银剑钊 《矿物岩石地球化学通报》1996,(4)
辉碲铋矿矿物学数据补充资料银剑钊（地质矿产部矿床地质研究所，北京１０００３７）关键词辉碲铋矿，热电系数，四川四川石棉县大水沟碲矿床为世界首例独立碲矿床，作者已对其产出的辉碲铋矿化学成分和Ｘ射线衍射数据作过报道［１］。本文仅就辉碲铋矿的反射率、显微压入... 相似文献
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Dashuigou Tellurium Deposit in Sichuan Province, China: S, C, O, and H Isotope Data and Their Implications on Hydrothermal Mineralization 总被引：6，自引：0，他引：6
Jingwen MAO Yitian WANG Tiping DING Yuchuan CHEN Jiaxiu WEI Jianzhao YIN 《Resource Geology》2002,52(1):15-23
Abstract: Dashuigou, a unique tellurium‐dominated deposit over the world, is located in the western margin of the Yangtze cra‐ton in southwestern China. It is characterized by high‐grade tellurium accompanied by bismuth, gold, silver, and sulfur, and occurs in the area of less than one km2. The mineralization is divided into three stages, i.e. (1) tellurium‐bearing pyrrhotite–pyrite stage, (2) tetradymite stage, and (3) auriferous quartz veins stage. Tellurium mineralization coexisting with bismuth, silver, selenium, and gold predominantly develops in the stage 2, while the stage 1 is enriched only in sulfur and iron, and the stage 3 is very weakly mineralized with gold. The δ34S values of sulfides in the ore of the deposit vary in a narrow range of –3.1 ‐ +2.8 per mil with –3.1 ‐ +2.8 per mil for the stage 1 and –0.5 ‐ +2.1 for the stage 2, showing the isotopic characteristics of mantle derived sulfur. The δ13C values of vein dolomites vary from –5.3 to –7.2 per mil, with –5.3 ‐ –6.6 per mil for the stage 1 and –5.3 ‐ –7.2 per mil for the stage 2, which are significantly different from those of surrounding Triassic marble with δ13C values of –0.3 ‐ +2.8 per mil, and show characteristics of mantle derived carbon. The δ18O values of vein dolomites range from +10.2 to +13.1 per mil, which are higher than those of carbonatite, but lower than those of the marble. Their corresponding δ18Owater values are +0.6 ‐ +3.9 per mil, with +2.7 ‐ +3.8 per mil for the stage 1 and +0.6 ‐ +3.9 per mil for the stage 2. The data implies that these vein carbonates were formed by the mixing fluids of magmatic or mantle source with meteoric or formation water. The δ18O values of ore‐forming fluids responsible for the formation of vein quartz are estimated to be +3.2 to +6.8, the δD values of inclusion fluids of the quartz are measured to be –54 to –82 per mil. All those stable isotopic data suggest the involvement of the fluids from mantle and/or mantle‐derived magmas through fault system in the forming process of the Dashuigou tellurium deposit. 相似文献
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辉碲铋矿是一种较难独立成矿的碲硫化物。本文对世界首例也是唯一一例大型独立碲矿－四川省石棉县大水沟独立碲矿中的矿物辉铋碲矿进行了Ｘ射线粉晶衍射分析，并将其衍射数据与ＪＣＰＤＳ卡片中Ｔｅｔｒａｄｙｍｉｔｅ（辉碲铋矿）以及Ｋａｗａｚｕｌｉｔｅ的衍射数据做了对比，发现该辉碲铋矿的衍射数据与卡片中的Ｋａｗａｚｕｌｉｔｅ的衍射数据相近而与Ｔｅｔｒａｄｙｍｉｔｅ相差甚远。 相似文献
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