近年来,积累了不少有关风化壳地质、矿物、地球化学等方面的重要资料,加深了我们对残积表生物质及与其有成因关系的沉积矿床形成过程的理解.根据这些新材料,本文概括归纳出以下几点.形成风化壳的最主要因素由于剥蚀作用而使岩石出露地表并遭受风化,这是形成风化壳的前提.在潮湿、温暖的气候条件下,侵蚀减弱以后,可以同时发生风化过程和疏松风化物被冲刷的过程.这在热带多雨地区尤其显著.当然,这是排除了存在植被和土壤复盖的情况.但是,风化物被搬运的速度逐渐低于堆积的速度,因此风化壳的厚度增大.残积物的侵蚀冲刷停 In recent years, we have accumulated a lot of important information about geochemical, mineral and geochemical weathering crusts, which has deepened our understanding of the formation process of the residual table biomass and its related genesis. According to these new materials, The main points of formation of weathering crust are that the denudation causes the rock to be exposed to the earth’s surface and weathering, which is the prerequisite for the formation of weathering crust, which can occur simultaneously in humid and warm climates after the erosion is weakened. The weathering process and loose weathering are washed out, which is especially pronounced in tropical rainy areas, which of course precludes the presence of vegetation and soil cover, however, weathering objects are being transported less slowly than the rate of stockpiling The thickness of the weathering crust increases. The erosion of the remaining sediment stops