胶莱盆地东北缘金矿床主要类型与找矿远景评价

通过对胶莱盆地东北缘地质条件、地球物理场、区域化探特征的分析 ,建立了蓬家夼、发云夼 (宋家沟 )金矿的地质物探化探综合模式剖面 ,初步总结了成矿规律 ,指出了找矿远景区段。蓬家夼、发云夼 (宋家沟 )两种类型金矿尽管在成矿构造部位、成矿类型和前期矿质聚集过程等存在一定差异 ,但二者成矿时间和成矿过程具有相似性 ,系同一期成矿作用所致 ,其成矿时间大约为 10 0 .59Ma ,属燕山运动晚期的产物。

Major Types and Propecting Future of Gold Deposits in Northeast Jiaolai Basin

Through the ananlysis of geological conditions, geophysical field and geochemical characteristics in northeast Jiaolai basin, geological-geophysical-geochemical comprehensive model (profile) of Pengjiakuang and Fayunkuang gold deposits has been set up, ore-forming rule primarily summarized, and prospecting future areas pointed out as well. Although there are some differences in orebody occurences, ore-forming types and early gold-concentrates process of early period; and better conforming in ore-forming time and process between Pengjiakuang and Fayunkuang gold deposits. They were formed by the same mineralization at the period of 100.59Ma around and belong to the creature at late Yanshan period.