| 东坪金矿“芥末金”及其类型 |
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| 引用本文： | 李九玲,E.Makovicky,J.Rose-Hansen,B.Petersen,亓锋,崔艳合,徐庆生.东坪金矿“芥末金”及其类型[J].现代地质,2001,15(2):T003-T005. |
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| 作者姓名： | 李九玲 E.Makovicky J.Rose-Hansen B.Petersen 亓锋 崔艳合 徐庆生 |
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| 作者单位： | 1. 中国地质科学院矿产资源研究所
2. 丹麦哥本哈根大学地质研究所 |
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| 基金项目： | 国家自然科学基金资助项目(49572089). |
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| 摘 要： | 对中国河北东坪金 -碲化物型金矿的成分及性质复杂多样的金矿物的研究表明 ,东坪金矿产有由不同尺寸微粒金与碲酸盐 /亚碲酸盐 /含水氧化物组成的一些特殊的混合相 ,具芥末状或胶状结构 ,沿用“芥末金”之称。研究所获众多的分析数据得以对这些成分复杂的物质进行鉴别和分类。并按碲金矿蚀变模式 ,利用孔隙中充填的针铁矿、水硫碲铅石、绿碲铁矿、黄碲矿、黄碲铁石、碲酸等 (或一些未知混合相 )对铁芥末金、碲铅芥末金、碲铁芥末金、锰铅芥末金等各类型的化学组成及性质进行模式化。与前人资料进行了对比 ,对蔡长金、田澍章等描述过的金的碲酸盐或氧化物矿物做出了新的解释 ,提出其中某些未定名的新矿物应解释为芥末金的变种。根据电子能谱学数据推测 ,芥末金中可能存在金的纳米级团簇。
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| 关 键 词： | 金 碲 碲金矿 微孔隙充填 芥末金 复杂混合相 金-碲化物型矿床 |
| 文章编号： | 1000-8527(2001)02-0189-08 |
MUSTARD GOLD AND ITS VARIETIES FROM DONGPING MINE,HEBEI PROVINCE, CHINA |
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| LI Jiu ling ,E Makovicky ,J Rose Hansen ,S B Petersen ,QI Feng ,CUI Yan he ,XU Qing sheng.MUSTARD GOLD AND ITS VARIETIES FROM DONGPING MINE,HEBEI PROVINCE, CHINA[J].Geoscience——Journal of Graduate School,China University of Geosciences,2001,15(2):T003-T005. |
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| Authors: | LI Jiu ling E Makovicky J Rose Hansen S B Petersen QI Feng CUI Yan he XU Qing sheng |
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| Institution: | LI Jiu ling 1,E Makovicky 2,J Rose Hansen 2,S B Petersen 2,QI Feng 1,CUI Yan he 1,XU Qing sheng |
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| Abstract: | The composite minerals of gold from Au Te deposit of Dongping,Hebei Province,China are studied in detail.The special mixed phases with mustard or colloidal micro structure composed of gold with various tellurates/tellurites/hydroxides in the submicroscopic pores are found in the mine,keeping the old name of mustard gold from Lindgren (1933) by authors.A lot of new analytic data are allowed to recognize and characterize a number of chemical varieties of this composite material:the type mustard gold nearly unfilled micro pores,ferroan type,tellurian plumbian type,tellurian ferroan,manganoan plumbian type and so on.Chemistry and properties of these types have been modeled by contents of goethite,schieffelinite tellurite,emmonsite of some unknown mixed phases in the pores of the mustard gold aggregate.These compositions also explain the insufficiently defined “oxidic phases” of Au and Te described by Cai Changjin (1993) and Tian Shuzhang (1995).Mustard gold was formed by decomposition of calaverite,through selective leaching of tellurium and then by the formation of tellurates/tellurites/hydroxides as well their filling in the micro porous.It is also conjectured from the X ray photoelectron spectroscopy (ESCA/XPS) data that some clusters of gold with size of a few nanometers occur in mustard gold. |
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| Keywords: | gold tellurium calaverite filling in micro porous mustard gold composite aggregate Au Te deposit |
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