| 宁芜云台山黄铁矿矿床中黄铁矿矿物的初步研究 |
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| 引用本文： | 熊先孝,姚超美.宁芜云台山黄铁矿矿床中黄铁矿矿物的初步研究[J].化工矿产地质,1999,21(4):215-219. |
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| 作者姓名： | 熊先孝 姚超美 |
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| 作者单位： | 化学矿产地质研究院 |
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| 摘 要： | 宁芜云台山黄铁矿矿床中黄铁矿矿物以自形晶为主 ,次为他形粒状 ;黄铁矿晶胞参数为 5 .415 2 3～ 5 .41843× 10 -10 m ,晶体化学式为 (Fe0 .9968Co0 .0 0 0 6Ni0 .0 0 2 6) 1.0 0 0 0 S2 .0 597;黄铁矿红外吸收光谱主吸收峰值为 34 8cm-1,最小透过率为 30 .0 0 %～ 48.80 % ,透过率极差为 31.13～ 47.5 1;黄铁矿中Fe平均含量为 45 .44 % ,S平均含量 5 3.91% ,具有富S特征 ;Co/Ni平均值为 0 .2 1;稀土元素总量平均为2 1.84× 10 -6,具有明显负铈异常 (δCe :0 .76～ 0 .93)和负铕异常 (δEu :0 .72～ 0 .90 ) ;硫同位素组成δ3 4S为 7.0 0‰～ 2 3.0 0‰ ,黄铁矿是含矿热液以堆积、充填和交代方式形成 ,黄铁矿床为火山热水沉积矿床。
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| 关 键 词： | 黄铁矿 谱学特征 晶体化学 宁芜云台山 |
PRELIMINARY STUDIES OF THE PYRITE MINERAL FROM YUNTAISHAN PYRITE DEPOSIT IN NANJING WUHU REGION |
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| Xiong Xianxiao,Yao Chaomei.PRELIMINARY STUDIES OF THE PYRITE MINERAL FROM YUNTAISHAN PYRITE DEPOSIT IN NANJING WUHU REGION[J].Geology of Chemical Minerals,1999,21(4):215-219. |
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| Authors: | Xiong Xianxiao Yao Chaomei |
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| Institution: | Geological Institute for Chemical Minerals |
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| Abstract: | The pyrite minerals from Yuntaishan pyrite deposit in Nanjing Wuhu region are recognized as euhedral and secondly, anhedral with unit cell parameter of 5.41523×10 -10 m～5.41843×10 -10 m and crystal chemical constitution of (Fe 0.9968 Co 0.0006 Ni 0.0026 ) 1.0000 S 2.0597 . The infrared absorption spectroscopy made for the mineral shows a main absorption peak of 348cm -1 , a minimum transparency degree of 30.00%～48.80% and a difference between maximum and minimum is 31.13%～47.51%. The mineral contains an average Fe of 45.44% and S of 53.91%, indicating S enrichment. Co to Ni ratio is 0.21. A total volume of REE is on average 21.84×10 -6 , with evident negative cerium ( δ Ce:0.76～0.93) and europium ( δ Eu:0.72～0.90) anomaly. Sulfur isotopic composition is 7.00‰～0.90‰. The pyrite mineral had genetic tie with concentration, filling and metasomatism of the ore bearing hydrothermal solution, and the deposits represent a sedimentary deposit caused by volcanic hydrothermal solution. |
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| Keywords: | pyrite spectral feature crystal chemistry Yuntaishan of Nanjing Wuhu region |
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