闽西北地区混合花岗岩类型划分及其与金成矿关系

根据闽西北混合花岗岩产出的大地构造位置、成岩物质来源及其与周围地质体的关系等研究,认为闽西北地区混合花岗岩总体上可分为区域型混合花岗岩和边缘型混合花岗岩2种类型。通过2类混合花岗岩的空间展布和特征对比,并对其形成机理及其与金成矿关系进行了初步探讨。

On the Division of Migmatitic Granites in Northwest Fujian and Its Metallogenic Relation with Gold Ores

Based on the analyses results of the geotectonic location of the migmatitic granite, the initial source of diagenetic materials and the relations of circumjacent geological bodies, it is considered that the migmatitic granite in Northwest Fujian can be divided into two types, namely, the regional type and the peripheral type. Taking a comparison of the characteristics and spacial distribution of the migmatitic granite, the author probed preliminarily into the formation mechanism of the migmatitic granite and the metallogenic relation of the migmatitic granite with gold ores.