山东省栖霞台前地区控矿构造与找矿预测

胶东金矿集区是中国最大的金矿集区,具有良好的金成矿地质背景。胶东金矿集区内金矿床具有新太古界地层、中生代侵入岩及断裂共同耦合控矿特征。台前地区位于胶东金矿集区内,具有良好的成矿条件,已发现金矿床(点)受断裂控制明显。通过解析台前地区控矿断裂的几何特征、力学性质、期次划分,并与招平断裂进行对比,结合典型矿床构造控矿特征及矿体赋存规律,对成矿规律进行了总结,统计了成矿要素,指出马疃地区、马家疃地区具有良好的找矿潜力。

Ore-controlling structures and prospecting predictions in Qiantai area,Qixia City,Shandong Province

Jiaodong high gold ore concentration area is the largest high gold ore concentration area in China and has favorable geological settings for gold mineralization.The gold deposits in Jiaodong high gold ore concentration area are characterized by Neo-Archaeozoic strata,Mesozoic intrusion rock and fracture coupling ore control.Taiqian area is located in Jiaodong high gold ore concentration area and has favorable condition for mineralization.The gold deposits(spots)discovered in the area are evidently controlled by fractures.By analyzing the geometrical characteristics,mechanical property and phase division of the ore-controlling fractures in Taiqian area,and comparing with Zhaoping fracture,the ore-forming rules are summarized based on typical deposit ore-controlling characteristics and ore body occurrence rules,summed up ore-forming elements and pointed out that there are good prospecting potentials in Matuan area and Majiatuan area.