龙吉山铜钼多金属矿地质特征及找矿潜力分析  

Geological Features and Exploration Prospecting Evaluation For the Longji Mountain Copper-Molybdenum Polymetallic Deposit

作　　者：杨绍鸽 周磊[1] 李钢 YANG Shaoge;ZHOU Lei;LI Gang(Geochemistry Exploration Brigade of Sichuan Bureau of Exploration and Development of Geology and Minerals Resources,Deyang 618000,China)

机构地区：[1]四川省地质矿产勘查开发局化探队,四川德阳618000

出　　处：《四川有色金属》2017年第4期7-11,共5页Sichuan Nonferrous Metals

摘　　要：龙吉山矿区大面积出露三叠系上统鄂拉山组中酸性喷出岩及火山碎屑岩,南部隐伏有较浅的钾长花岗斑岩和花岗闪长斑岩,断裂构造具放射状分布特征,磁法异常和激电异常呈环状分布,而水系与土壤异常具有明显的自南西向北东水平分带特征,地表探槽揭露的矿(化)体亦显示良好的成矿物质来源,加之矿区南部已发现的全岩铜银多金属矿化英安斑岩,对在矿区深部寻找斑岩型铜钼矿具有参考意义。Longji Mountain mining area exposes a large area of intermediate acid extrusive rocks and pyroclastic rocks of Upper Triassic Elashan Group,and conceals shallowly K-feldspar granite porphyry and granodiorite porphyry in the south.The fracture structure has radial distribution characteristics.Abnormal magnetic anomaly and abnormal excitation are distributed in a circular pattern.The drainage and soil geochemical anomaly has obvious horizontal zoning features from southwest to northeast.The mineralized body revealed by the trenches also shows a good source of metallogenic material.Meanwhile,there find whole rock polymetallic mineralization existing in dacite porphyry in the south of mining area.These facts indicate that in the mining area,it has some reference value to find porphyry Cu-Mo deposit in the deep.

关 键 词：龙吉山 地质特征 控矿因素 找矿潜力分析 

分 类 号：P618[天文地球—矿床学]