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硅在地壳中是分布最广的元素之一,其重量克拉克值为27.5％,原子百分数为16.11％。硅具有强烈的亲氧性质,因此它在地壳中总是以硅酸盐矿物和二氧化硅的独立矿物形式存在。硅的矿物占地壳质量的一半以上。对二氧化硅的表生地球化学问题,化学和地质工作者研究了很多年,直到采用了钼酸铵比色法相当准确地测定水溶液中呈单分子状态存在的硅酸含量之后,很多问题才得到了澄清和解决。通过近两年来对风化淋滤石英的条件的探讨,收集了一些资料,并结合我们的工作,提出以下几点认识同大家讨论。
Silicon is one of the most widely distributed elements in the earth’s crust, with a weight of 27.5% by weight and an atomic percentage of 16.11%. Silicon has a strong oxygenophilic property, so it is always present in the earth’s crust as a separate mineral of silicate minerals and silica. Silicon minerals account for more than half the quality of the earth’s crust. Many studies have been conducted on the epigenetic geochemical problems of silica, chemical and geological workers for many years until many problems have been solved with the ammonium molybdate colorimetric method, which is fairly accurate in determining the presence of silicic acid in aqueous solution as a single molecule Got clarified and resolved. Through the discussion of the conditions of leaching quartz over the past two years, we have collected some materials and put forward the following points to discuss with everyone in our work.