鲁东金矿成矿规律及新的找矿方向

GOLD ORE-FORMING REGULATION AND NEWLY PROSPECTING ORIENTATION IN JIAODONG AREA

摘要:

通过分析鲁东地区金矿成矿地质条件和区域地球物理场、区域地球化学场特征，并与典型金矿床地质特征进行类比，初步认为胶北隆起的破碎带蚀变岩型（焦家式）和石英脉型（玲珑式）金矿，以及近年来在胶莱盆地周缘找到的蓬家夼金矿床（产在盆缘控制性断裂带中）和发云夼金矿床（产在早白垩世莱阳群砾岩中），是在早白垩世同一个区域构造应力场下形成的，属同源、同期成矿作用的产物，为同一成矿系列的金矿床组合。胶莱盆地周缘具有源、层、热、裂、晕相统一的成矿地质条件和矿化信息，是今后寻找蓬家夼式和发云夼式金矿的远景地区。

Abstract:

According to the analysis of geological condition of gold-forming, and the characteristics of regional geophysical and geochemical fields in Jiaodong area(east of Shandong), analogging geological characteristics with typical gold deposits, it is recognized that Jiaojia and Linglong type gold deposits in the Jiaobei uplift area, and Fayunkuang and Pengjiakuang gold deposits in the margins of Jiaolai basin formed under the same regional tectonic field in early Creaceous period; belong to the production of the...