胶东西北部北区和南区金成矿条件与成矿信息对比

本文概述了胶东西北部地区金成矿控制因素，从基底建造、成矿构造条件、重熔岩浆作用、燕山期热事件强度、围岩蚀变、综合成矿信息等6类31个方面，系统对比了胶东西北部北、南两区金成矿条件的异同，指出这两区间存在着一定差异，从而导致金矿化特征和成矿潜能的不同。在此基础上划分了三个具有不同成矿特征的构造-岩区。提出了热液系统中水-岩反应和热液系统中水的收缩作用是导致金属成矿的根本原因。

COMPARISON OF GOLD METALLOGENIC CONDITIONS AND INFORMATION BETWEEN NORTH AND SOUTH PART OF THE NORTHWEST JIAODONG AREA

The northwestern Jiaodong Area is an important gold matallogenetic belt in China. The essential mineralization controlling factors are basement formation, fault feature, spatial shape ofLinglong granitic body, its thickness and source rock, intensity of thermal event of Yanshan period, type and intensity of rock alteration. Systematic comparison with mineralization-controllingconditions between northern part and southern part of the northwestern country Jiaodong indicates many differences between the two parts.On the basis of geological background of gold mineralization and its intensity, the northwestern Jiaodong area can be divided into three tectonic-petrographic domains. Generally mineralization intensity turns to weak from the north part to the south part.