太行山北段中生代成矿时间演化

THE EVOLUTION OF METALLIZATION DURING MESOZOIC ERA IN THE NORTHERN TAIHANG MOUNTAINS

晚期岩浆和水热成矿作用一直是矿床学研究的重要课题。特别是对岩浆和水热两类作用之间的过渡成矿作用（上界是岩浆水相的出现，下界是岩浆的水饱和固相线）更是当前研究工作的前缘。富水挥发物相的演化和分离是其中心问题。从实验岩石学方面探索，从总结地区和矿床成矿时间演化角度归纳分析，都是积累资料深化认识的基本方法。太行山北段中生代岩浆活动频繁，成矿作用强烈，岩体和岩石种类、矿点和矿化类型都很多。这一地区成矿顺序和矿床形成阶段有明显的规律性，反映了深处岩浆挥发物相演化和分离的特点。文章在介绍有关岩浆活动和成矿作用地质情况的基础上，讨论了成矿时间演化的特点和原因。

The purpose of this paper is to present certain facts relating to magmatism and metallization in the northern Taihang Mountains during Mesozoic era. The facts here set forth seem to be capable of indicating that differentiation and metallization had formed one continuous process during Cretaceous Period. The time sequence of metallization shows as Pb Zn, Fe Cu,Fe Au, asbestos→Fe,Cu Ag→Mo, Au,Ag→Pb Zn, Cu. In all ore deposits, the orders of mineral deposition are nearly the same, they include silicates, metal oxides, metal sulfides, and carbonates four stages. The evolution of metallization, which is the order that the various types of mineral deposits have been formed in it, is of significance for the understanding of the processes which have gone on in the magma reservoir, and how the ore bearing fluid were generated in them.