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。
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.
出处
《矿物学报》
CAS
CSCD
北大核心
1991年第2期97-104,共8页
Acta Mineralogica Sinica
基金
国家自然科学基金
编号4880082
关键词
粘土
矿物
成因
类型
晶体化学
irregular illite/smectite interstratified clay mineral
genetic type
crystallochemical classification
quasicrystal structure
