| 贵州主要汞矿床的微量元素特征 |
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| 引用本文：.1994.Characteristics of minor elements in major mercury deposits of Guizhou Province[J].Mineral Deposits,13(3):250~259 |
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| 中文摘要:贵州6个不同类型的主要汞矿床，其矿石和辰砂的微量元素，特别是其中的分散元素和稀土元素有着明显差别，表明各汞矿床的成矿物质来源是不相同的。 |
| 中文关键词:汞矿床 微量元素 分散元素 稀土元素 贵州 |
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| Characteristics of minor elements in major mercury deposits of Guizhou Province |
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| Abstract:The six major mercury deposits in Guizhou Province are different from each other in minor element characteristics of ores and cinnabar, and their dispersed elements and rare earth elements, in particular, have respective distinguishing features. In the South China folded belt there are quite a number of mercury-gold metallogenic belts, which contain somewhat different ore deposits. The Lanmuchang ore deposit of Xingren County contains extremely high T1 but negligible amounts of Au, belonging to mercury-thallium deposit, whereas the Hongfacbang ore deposit of Danzhai County contains relatively high Au but very little TI, being of a mercury-gold deposit. As is extraordinarily high in cinnabar. In the Dadongla orefield of Tongren County within the Yangtze paraplatform, except for Zn in ores and relatively high Se in cinnaBar, contents of most elements are rather low in the Muyouchang ore deposit of Wuchuan County, contents of various elements are notably low in ores and cinnaban, due to the superimposition and transformation of repeated mineralization, the Baimadong ore deposit of Kaiyang County has become a mercury-uranium-molybdenum deposit, whose cinnabar contains fairly high Mo, Zn and Sb, the Zhifang orefield of Huangping County has remarkably high Se in ores and cinnabar, with also considerable amounts of Cu, Pb and Ag in cinnabar, thus being of a mercury-selenium deposit. ∑REE values of cinnabar from the six ore deposits are all lower than the abundance of the crust and are mostly lower than the abundance of the upper mantle; ∑Ce／∑Y>1, dominated exclusively by LREE; nevertheless, REE contents and distribution patterns of cinnabar are obviously different in different ore deposits. According to large quantities of analytical data, the ore-forming solution for mercury deposits was a kind of high-salinity and high-density underground hot brine witli the addition of meteoric water，which could dissolve and extract mercury from the strata and rocks during its long circulation．Due to the compogitional inhomogeneity of the crustal and upper mantle materials and the differences in geologic-tectonic setting And regional geochemical background, different deposits derived materials from different sources, so that their minor element characteristics are quite different． |
| keywords:mercury deposit, minor element, dispersed element, rare earth element, Guizhou |
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