论胶东金成矿区大地构造演化特征及金矿形成条件

通过对本区沉积建造、岩浆建造、变质作用、构造型相、地壳运动型式、地貌、新构造等项特征分析。认为本地区经历了前地楷阶段、地槽阶段、地台阶段和地洼阶段、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。太古界胶东群是本区金矿床主要矿源层。岩浆活动主要起成矿物质转移站作用；构造活动控制金矿的形成分布和矿体的规模、形态等。金矿床具有成矿物质多来源、多成矿作用、多控矿因素多大地构造演化阶段、多成因类型等特征，属于漫──壳矿床。图２，表２参１０。

DISCUSSION ON CHARACTERISTICS OF GEOTECTONIC EVOLUTION AND METALLOGENIC CONDIONS OF GOLD METALLOGENIC PROVINCE IN JIAODONG REGION,SHANDONG

Analysing the characteristics of sedimentary formation,magmatic formation andmetamorphism of the strata,and the structural features,the modes of the crustal movement,thegeneral configuration of the earths surface and newtectonics.it demonstrated that the studying area went through four stages of the geotectonic evolution,namely,the stage ofprosyncline,the stage of syncline,the stage of platform and the stage of Diwa(geodepression).the gold deposits were formed during the Diwa stage or the late Yanshanian Age of the mesozoic Era,undergoing multi-tectono-magmatic activities.The Jiaodong Group of the Archean Erathem was the source bed of the gold deposits of the area Graitic magmatic activities acted as a transporting station of the metallogenic elements. Tectonic activitiescontrolled the formation and the distribution of the gold deposits and the scale and form ofthe ore body,etc.the gold deposits have multisource of ore forming elements, multi-metall-ogenesis,multi-ore-controlling factors,multi-tectonic stage mineralization,multi-genercal types of ore deposits They are mantle-crust deposits,2figs.,2tabs.,10refs.