摘要
连城朋口稀土矿为近年来新发现的稀土矿,成矿母岩为志留纪似斑状中粗粒、中粒正长花岗岩和斑状细粒正长花岗岩。矿体受风化壳和地形控制,平面上呈不规则面型分布,中北部规模大、品位较高;垂向上呈现出中间富、上下贫的特征。成矿物质来源于正长花岗岩,矿床成因属于次生富集花岗岩风化壳离子吸附型稀土矿床。
Pengkou rare earth mine in Liancheng county is a new rare earth mine discovered in recent years.The metallogenic parent rocks are Silurian period like porchy ous grlong granite,mesonormal granoid granite and porphytic fine granoid granite.The ore body is controlled by weathering shell and terrain,and has irregular surface distribution on the plane,with large scale and high grade in the middle and northern parts.The vertical upward presents a middle rich and poor characteristics.Mineral formation is derived from Zhengyuan granite,and the deposit origin belongs to the secondary enriched granite weathered shell ion adsorption type of rare earth deposit.
作者
黄良伟
Huang Liangwei(Fujian Institute of Geological Survey,Fuzhou,350013)
出处
《福建地质》
2022年第3期210-220,共11页
Geology of Fujian
基金
福建省级地质勘查专项资金项目“福建省连城县朋口矿区稀土矿普查”。
关键词
稀土矿
地质特征
离子吸附型
找矿标志
连城朋口
rare earth ore
geological characteristics
ion adsorption type
prospecting symbol
Pengkou area of Liancheng county
