| 硅藻土的热谱特征 |
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| 引用本文： | 陈国玺 张惠芬. 硅藻土的热谱特征[J]. 矿物学报, 1995, 15(1): 36-39 |
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| 作者姓名： | 陈国玺 张惠芬 |
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| 作者单位： | 中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640 |
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| 基金项目： | 广东省科委资助，中国科学院广州分院联合资助 |
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| 摘 要： | 对广东省海康县等国内外２３个硅藻土样品进行了ＤＴＡ、ＴＧ分析。研究结果：海康县卜昌、美国和日本硅藻土呈现了典型的蛋白石ＤＴＡ曲线和Ｘ射线衍射谱，说明样品纯度较高；徐疗县峙头、九亩和云南等地的硅藻土除了蛋白石的ＤＴＡ和Ｘ射线衍射谱外，还含有较多数量的伊利石、蒙脱石和高岭石。取自九２和田洋硅藻土矿床钻孔样品的ＤＴＡ曲线含有较多数量的有机持。根据ＴＧ曲线对不同埋深硅藻土中有机质含量计算表明，有机质含量与
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| 关 键 词： | 硅藻土 X射线衍射 有机质含量 热分析 热谱 |
THERMO-SPECTRAL CHARACTERISTICS OF DIATOMITE |
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| Chen Guoxi, Zhang Huifen, Wang Fuya, Feng Huang. THERMO-SPECTRAL CHARACTERISTICS OF DIATOMITE[J]. Acta Mineralogica Sinica, 1995, 15(1): 36-39 |
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| Authors: | Chen Guoxi Zhang Huifen Wang Fuya Feng Huang |
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| Abstract: | Twenty-three diatomite samples from China and abroad have been investigated with DTA,TG and XRD techniques. The results show that the samples from Haikang, USA and Japan are typical opals and have higher purity; those from Xuwen and Yunnan contain considerab1e amounts of illite, montmorillonite and kaolinite. The drill hole samples from Jiudou and Tianyang are found containing some organic matter. As shown by TG curves, samples from different depths are different in organic content, indicating a sedimentary environment for diatomite mineralization. |
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| Keywords: | diatomite DTA TG XRD organic content |
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