| 山西晋城和阳泉地区石炭系太原组铵伊利石矿物特征及成因 |
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| 引用本文： | 郑启明,刘钦甫,申琦,伍泽广,张鹏飞.山西晋城和阳泉地区石炭系太原组铵伊利石矿物特征及成因[J].古地理学报,2011,13(5):501-508. |
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| 作者姓名： | 郑启明 刘钦甫 申琦 伍泽广 张鹏飞 |
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| 作者单位： | 中国矿业大学（北京）地球科学与测绘工程学院，北京100083 |
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| 基金项目： | 国家自然科学基金项目(编号:41072119)资助 |
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| 摘 要： | 铵伊利石是伊利石层间域的K+被NH+4替代而形成的类质同象.文中运用X射线衍射分析、傅里叶红外光谱分析以及热重—热流—红外光谱同步分析等手段,对山西晋城及阳泉地区的15号煤层夹矸及煤中矿物进行了研究,发现15号煤层夹矸和煤低温灰中黏土矿物以铵伊利石和高岭石为主,铵伊利石含量为21％～74％；X射线衍射图谱上d(001)...
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| 关 键 词： | 山西省 石炭系 太原组 铵伊利石 X射线衍射峰 红外特征吸收峰 脱氨气温度 |
| 收稿时间： | 2011-03-17 |
Mineralogy and origin of ammonium-illite of the Carboniferous Taiyuan Formation in Jincheng and Yangquan districts of Shanxi Province |
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| Zheng Qiming,Liu Qinfu,Shen Qi,Wu Zeguang,Zhang Pengfei.Mineralogy and origin of ammonium-illite of the Carboniferous Taiyuan Formation in Jincheng and Yangquan districts of Shanxi Province[J].Journal of Palaeogeography,2011,13(5):501-508. |
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| Authors: | Zheng Qiming Liu Qinfu Shen Qi Wu Zeguang Zhang Pengfei |
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| Institution: | School of Geoscience and Survey Engineering，China University of Mining and Technology(Beijing)，Beijing100083 |
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| Abstract: | Ammonium-illite is the isomorphism of the illite，in which the K+was substituted by the NH+4. The X-ray diffraction，fourier infrared spectrum and TGA-DSC combined with fourier infrared spectrum were used to study the minerals in No.15 coal seam from Jincheng and Yangquan districts of Shanxi Province.It was found that the main clay minerals in the coal partings and the coal ashes under low temperature were ammonium-illite and kaolinite，with 21％～74％ ammnioum-illite. The X-ray diffraction peak of d(001)=1.026～1.032 nm and the absorption peak of 1428.37～1431.99 cm-1 in infrared spectrum，are two important characteristics to distinguish the ammonium-illite from other clay minerals.The results of TGA-DSC combined with fourier infrared spectrum indicated that the deammonification temperature was between 450 ℃ and 700 ℃，and the crystal destruction and ammonium-releasing reach maximum at the temperature of 559 ℃.It was found that the ammonium had kaolinite illusion，indicating that the ammonium-illite was transformed from kaolinite under the NH+4-rich and K+-poor environment in diagenesis. |
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| Keywords: | Shanxi Province Carboniferous Taiyuan Formation ammonium-illite X-ray diffraction peak infrared absorption peak deammonification temperature |
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