| 长江中下游铁帽型金矿床矿石的物质组成研究 |
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| 引用本文： | 邵洁涟,李立平.长江中下游铁帽型金矿床矿石的物质组成研究[J].地质找矿论丛,1988(1):32-46. |
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| 作者姓名： | 邵洁涟 李立平 |
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| 作者单位： | 中国地质大学
(邵洁涟)，中国地质大学(李立平) |
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| 摘 要： | 本文通过江西武山吴家和安徽铜陵代家冲两个铁帽型金矿床的矿石矿物组成特点的研究,为长江中、下游进一步寻找和评价铁帽型金矿床提供必要的依据。
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| 关 键 词： | 铁帽型金矿床 矿物组成特征 |
ON STUDY OF ORE MATERIAL COMPOSITION OF GOSSAN-TYPE GOLD DEPOSITS FROM MIDDLE AND LOWER REACHES OF YANGTZE RIVER, CHINA |
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| Shao Jielian and Li Liping.ON STUDY OF ORE MATERIAL COMPOSITION OF GOSSAN-TYPE GOLD DEPOSITS FROM MIDDLE AND LOWER REACHES OF YANGTZE RIVER, CHINA[J].Contributions to Geology and Mineral Resources Research,1988(1):32-46. |
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| Authors: | Shao Jielian and Li Liping |
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| Institution: | University of Geosciences of China;University of Geosciences of China |
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| Abstract: | Gossan-type gold deposit is of important economical value. By the study of ore chemical composition of gossan-type gold deposits from the middle and lower reaches of Yangtze River, wefind that, in the ore, the Au content increases with the increase of Cu, As and Bi comtents and thedecrease of Ba, Mg contents, while the Ag content rises with the increase of Mn, Pb and Zncontents. The authors propose the minor elements indicators in evaluation of gold-bearing ability ofgossans as follows. In the gossan ores with Cu+As (both in wt%)>0.01, the content of Au isoften greater than 1 g/t, while those with (Mn+Pb+Zn)>0.5 (all in wt%), the content of Agis over 5 g/t. The emphasis is placed on the mineralogy of supergene gold, goethite, hematite,oxides and hydroxides of manganese (chalcophanite, birnessite, hollandite, cryptomelane andpyrolusite), covellite, and remnant primary pyrite, etc. A lot of genetic information and oreprospecting typomorphic peculiarities are extracted from these minerals. |
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