埃洛石属高岭类矿物,是高度风化作用下的重要产物,往往广泛分布在热带亚热带的湿热地区,而在几千米以上的西藏高原土壤中有大量埃洛石存在有其特殊的意义,本文仅从矿物学观点来探讨西藏土壤中埃洛石与成土环境变迁的关系。埃洛石的晶形多种多样,圆球状或涡卷状(照片1),短管状(照片2),空心长管状(照片3),以及多 The halloysite kaolinite minerals, which are important products under the highly weathering effect, are often widely distributed in hot and humid tropical regions of the tropics and subtropics. However, there are a large number of halloysite in the Tibetan plateau soils above a few kilometers , This paper only discusses the relationship between the halloysite and the change of the soil-forming environment in Tibet soil from the perspective of mineralogy. The shape of halloysite is varied, spherical or spiral (photo 1), short tube (photo 2), hollow long tube (photo 3), and many