地壳演化过程中四川省非金属矿成矿活动

四川省在地质发展史上，地壳的演化先后经历了四个不同时期：（1）前震旦纪，（2）震旦纪—古生代—早中生代，（3）中晚中生代，（4）新生代。每一个不同时期在不同的构造环境中有不同的非金属矿成矿活动，形成近70种不同成因类型的非金属矿床，已发现和开发利用的非金属矿床已超过500个，它们依附于22种含矿建造。指出和图示这些非金属矿所依存的含矿建造的分布以及这些建造所处的构造环境和构造区域，目的就在于提示四川省非金属矿的找矿方向。

The Metallogenic Activity of Sichuan Nonmetallic Deposit with Crustal Evolution

In the history of the geological development of Sichuan province, the crustal evolution went through four different periods: (1) Presinian period era, (2) Sinian period-Paleozoic era-Early Mesozoic era,(3) Middle-Late Mesozoic era, (4) Cenozoic era. There were different nonmetallic minerals metallogenic activities in different tectonic environment during each period. Nearly 70 types of different genetic nonmetallic minerals were formed and more than 500 nonmetallic deposits have been developed and used,and they were belonged to 22 kinds of ore-bearing formations. Knowing the ore-bearing formations distribution and the tectonic environment and tectonic region was to point out the prospecting direction of nonmetallic minerals of Sichuan province.