山东省乳山市宋家庄金矿床地质特征研究

摘要

Songjiazhuang gold deposit locates in south and central part of Muping-Rushan gold belt.It is controlled by Qinghushan-Tangjiagou fault belt,its secondary faults and Mesozoic Linglong granites.Orebodies occurred in fault belt with the trend of NNE.Country rocks in its roof and floor are gold-bearing silicified granitic cataclasites.The deposit belongs to mesothermal filling type gold deposit.According to geological characteristics of this deposit,through study on characteristics of ore bodies,ore quality,alteration and origin of this deposit,metallogenic regularity has been summarized,and prospecting potential has been evaluated.%山东省乳山市宋家庄金矿区位于牟平-乳山金矿带中南部,受青虎山-唐家沟断裂及次级断裂构造和中生代玲珑花岗岩的共同控制,矿体赋存于NNE向断裂构造中,矿体的顶、底板围岩为含金硅化花岗碎裂岩.矿床成因类型为中温热液充填型金矿床.根据矿床地质特征,通过对矿体特征、矿石质量、围岩蚀变及矿床成因等方面的研究,总结其成矿规律,受断裂构造控制的热液型金矿床,一般具有延深大于延长的特点,该区深部找矿潜力较大,对青虎山-唐家沟断裂及次级断裂中找矿具有一定的指导意义.