| 不规则伊/蒙混层粘土矿物成因类型及晶体化学分类 |
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| 引用本文： | 陆琦,雷新荣,刘惠芳.不规则伊/蒙混层粘土矿物成因类型及晶体化学分类[J].矿物学报,1991(2). |
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| 作者姓名： | 陆琦 雷新荣 刘惠芳 |
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| 作者单位： | 中国地质大学，中国地质大学，中国地质大学 武汉 430074，武汉 430074，武汉 430074 |
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| 基金项目： | 国家自然科学基金,编号4880082 |
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| 摘 要： | 不规则伊/蒙混层粘土矿物(I/S)分布极为广泛,根据大量资料,提出了I/S的成因及晶体化学分类。按其成因分为三类:成岩型、风化型、火山热液型;按其晶体化学性质分为完全无序型、部分有序型及准晶态型。讨论了各成因类型I/S的晶体化学特点,认为产出于P/T界线层粘土中的I/S具二维晶格一维准晶格。探讨了I/S与烃类形成的关系。
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| 关 键 词： | 伊/蒙混层粘土矿物 成因类型 晶体化学 准晶态 |
GENETIC TYPES AND CRYSTALLOCHEMICAL CLASSIFICATION OF IRREGULAR ILLITE/SMECTITE INTERSTRATIFIED CLAY MINERALS |
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| Lu Qi Lei Xinrong Liu Huifang.GENETIC TYPES AND CRYSTALLOCHEMICAL CLASSIFICATION OF IRREGULAR ILLITE/SMECTITE INTERSTRATIFIED CLAY MINERALS[J].Acta Mineralogica Sinica,1991(2). |
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| Authors: | Lu Qi Lei Xinrong Liu Huifang |
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| Abstract: | Irregular illite/smectite interstratified clay minerals (I/S)are widespread in nature. Based on the available data, we have proposed the genetic types and crystallochemical classification. I/S can be genetically grouped into three types: diagenetic, weathered, and volcano-hydrothermal.Crystallochemically, I/S can be classified as three groups: fully random, partly regular, and quasicrystal. Studies of the crystallochemical properties of every genetic type of I/S show that the I/S found in the P/T boundary clay layer exhibits twodimensional crystal and one-dimensional quasicrystal structures. The relationship between I/S and hydro-carbon-formaton has also been discussed. |
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| Keywords: | irregular illite/smectite interstratified clay mineral genetic type crystallochemical classification quasicrystal structure |
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