胶东金成矿域胶莱盆地中超大型金矿床找矿远景  

Superlarge gold deposit exploration perspective in Jiaolai Basin of Jiaodong gold metallogenetic domain

作　　者：张竹如[1] 陈世桢[1] 

机构地区：[1]贵州工业大学资源工程系,贵阳550003

出　　处：《地球化学》1999年第3期203-212,共10页Geochimica

基　　金：国家攀登计划资助!(编号:攀登A3011)

摘　　要：胶东金成矿域有三种不同类型的金矿，胶莱盆地烃金双源层中的层控金矿床是新发现的金矿类型。烃金双源层是在盆地形成初期陆相局限水体中富金及富含有机质岩石，在成岩及热液作用中，Ａｕ 与油气同时活化，经水油岩反应体系作用形成矿床。在燕山晚期受构造岩浆活动及复杂成矿热液加富加大，使胶东有可能形成超大型金矿床的类型。崖子地区是可望突破寻找超大型金矿床的靶区。There are three types of gold deposit in Jiaodong gold metallogenetic domain. The stratabound gold deposit is a new type, which occurred in hydrocarbon gold two sources bed enriched in gold (Au 174 ng/g) and organic carbon (0.007%～4.225%). At diagenesis and hydrothermal process stages, the water and oil were simultaneously activated and the stratabound gold deposits were formed from the reaction between water oil and rocks. In the late Yanshan, the tectonomagmation produced complex ore forming hydrothermal solutions and then made the gold orebody enlarged and enriched. Therefore, there is most possibility for this type of gold deposit to be superlarge.

关 键 词：金矿床 矿床成矿 找矿远景 成矿域 胶莱盆地 

分 类 号：P618.510.5[天文地球—矿床学] P618.508[天文地球—地质学]