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本文对中国的4个白浆土典型剖面的粘土矿物、氧化铁矿物的几个特征以及伊毛缟石进行了研究。结果表明:(1)白浆土的粘土矿物种类相同,但含量及结晶程度各异。粘土矿物有水化云母、高岭石、蒙皂石、绿泥石及蛭石;(2)结晶氧化铁矿物主要是针铁矿,并普遍发生铝对铁的同晶替代作用;(3)用透射电镜法未发现白浆土中含有伊毛缟石,表明白浆土中不存在硅-铁-铝以无机复合体的形式移动,而是以铁铝的有机络合物形态淋溶的。
In this paper, four typical white clay soil profiles in China, such as clay minerals, several characteristics of iron oxide minerals and imogolite were studied. The results show that: (1) The clay minerals of albic soil are the same, but their content and degree of crystallization are different. Clay minerals are hydrated mica, kaolinite, smectite, chlorite, and vermiculite; (2) crystalline iron oxide minerals are mainly goethite, and the isomorphous substitution of aluminum for iron is commonly occurring; (3) ) Transmission electron microscopy did not find that albite contained albite, indicating that there is no silicon-iron-aluminum in albic soil moving in the form of an inorganic complex but leaching as an organic complex of iron-aluminum of.