临朐铁寨杂岩体基本特征及其与金矿化关系的探讨

Discussion on the Relation Between Basic Characteristics of Tiezhai Complex and Its Gold Mineralization in Linqu

摘要:

临朐铁寨杂岩体为燕山晚期侵入的中性、中偏碱性浅成—超浅成岩类，主要由闪长岩、闪长玢岩及二长斑岩等组成，为同源岩浆演化的产物。闪长（ 玢） 岩为成矿母岩，与金矿关系密切，金矿（ 化） 体产在闪长（ 玢） 岩与朱砂洞组蛇纹石化大理岩、泥质灰岩接触带上及其附近。

Abstract:

Tiezhai complex is medium to medium-meta-alkaline,shallow to super shallow complex intruded in the late period of Yanshan stage.It is mainly composed of diorite,diorite porphyry and monzonitic porphyry,which are from the same source magma evolution.The diorite is ore-forming source rock,and has a close relation with gold mineralization.The gold bodies occurred in the scarn belts which lie in the contact strip of diorite with serpentinized marble (Zhushadong formation) and muddy limestone.Monzonitic porphyry...