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本文以苏南地区膨润土普查的实践为主要依据,同时参考了一些国内外膨润土矿床的资料。所建立的模式也可供从事其他某些粘土矿床工作的同行参考。不当之处敬请批评指正。一、矿床成因类型的划分膨润土是以蒙脱石为主的粘土岩。蒙脱石的地质分布颇广,但作为可供工业利用的膨润土矿床,按其成因可划分下列三类六亚类。 (一)火山—沉积矿床本类矿床与火山喷发沉积作用直接有关,按成矿原岩的成因,又可划分为下列四个亚类: 1.玻璃质熔岩亚类
In this paper, the practice of bentonite census in southern Jiangsu as the main basis, with reference to some domestic and foreign information of bentonite deposits. The established model is also available to colleagues who work in some other clay deposits. Please correct criticism of improper correction. First, the classification of genetic types of bentonite Montmorillonite is based clay rock. Montmorillonite has a wide geological distribution, but as a bentonite deposit available for industrial use, the following three categories of subcategories are classified according to its causes. (I) Volcano-Sedimentary Deposits The deposits of this type are directly related to volcanic eruptions and are classified into the following four sub-categories according to the genesis of the original metallogenic rocks: 1. Vitreous lava sub-category