摘要
成矿物质和构造－岩浆活动是本区金矿床形成的条件。金矿床是在多次构造－岩浆活动中于中生代燕山晚期地洼阶段形成的。上太古界胶东群是本区金矿床主要矿源层；岩浆活动是成矿物质的载体；构造活动控制金矿的形成、分布和矿体的规模、形态等。金矿床具有多源、多成矿作用、多控矿因素、多大地构造演化阶段和多成因类型等特征，属于幔－壳复成矿床。
S Ore-forming material,tectonics and magmatic rocks are the metallogenic condi-tions in the studying aeea.The gold deposits were formed during the diwn stage of the late Yan-shanian Age of the Mesozoic Era, undergoing multitectonomagmatic activities. Jiaodong Group ofthe Archean Erathem was the source bed of the gold deposits of the area. Granitic magmatic ac-tivities acted as a carrier of the metallogenic elements.Tectonic activities controlled the formation,and the distribution of the gold deposits and the scale and form of the ore body,etc.. The gold de-posits have the characteristics of multi-source,multi-metallogenesis,multi-ore-controlling factors,multi-tectonic evolution stage and multi-genetical types of ore deposits,They are mantle-crustdeposits.
出处
《华东地质学院学报》
1994年第3期219-225,共7页
Journal of East China Geological Institute
关键词
金矿床
矿源层
成矿条件
the gold deposits
the source bed
tectono-magmatic activities
East shandong
