How are laterite and kaolin weathering crusts formed respectively?
This soil layer contains very little nutrients, mainly the B layer. (soil profiles can be found)The reason for red clay is that it is red when it is trivalentHow is kaolin formed?Kaolin is a mainly composed of kaolin clay. After fully weathered feldspar, kaolin, quartz and generate soluble salts; then with the rain, the river rafting on it and then re deposition, quartz and soluble salts have been separated, can be accounted for in kaolin kaolin. The largest porcelain is. Good raw material for the production of porcelain.
Humidity is relatively large, precipitation is relatively large environment, easy to do so, mainly in the equator and nearby areasThe area is high humidity, precipitation, and so the soil organic matter and +1, -1 ions, as well as easy to drain ingredients are leached by water, bring out the ecosystem, and the rest are mainly strong oxidation of iron, magnesium and other oxides
Minerals on the earth are mainly divided into three types of energy minerals, metal minerals and non-metallic minerals, kaolin is an important non-metallic mineral, and mica, quartz, calcium carbonate and called the four major non-metallic mineralsSmall flake, tubular, laminated and kaolinite mineral kaolin is mainly composed of a cluster of less than 2 microns (kaolinite, dickite, nacrite, halloysite etc.), chemical formula and ideal for AL2O3-2SiO2-2H2O, the main mineral is kaolinite kaolinite and water, in addition to kaolinite cluster mineral, montmorillonite, and Ye Lashi, illite, quartz and feldspar and other minerals. The associated chemical composition in the kaolin contains large amounts of AL2O3, SiO2 and a small amount of Fe2O3, TiO2, Na2O, K2O and trace amounts of CaO and MgO.The origin of the name of the kaolin is very interesting, it is said that at the beginning of eighteenth Century, the French priest Pillay Delecre in his "China porcelain manufacturing" in one book, first with a name called "Gaoling" village near Jingdezhen named China clay, which translates as "kaolin", then gradually spread widely cited people that became an international term.
