兴安油麻岭钨矿类型的多样性及成矿富集规律

油麻岭是桂北猫儿山岩体南缘一处新发现的钨矿基地,其北部的牛塘界（中型）、鸭头水（小型）等矿床由于长期开采,矿山保有钨矿资源储量已近枯竭。钨矿体受花岗岩、接触带、地层层位、构造及NE向的断裂构造控制。矿化类型呈多样性,主要有石英脉型、花岗岩外接触带似层状矽卡岩型、内接触带花岗岩型及构造破碎带蚀变岩型,有工业价值的主要是前三种,其中外接触带似层状矽卡岩型、内接触带花岗岩型为该区工作的主攻类型。钨矿化主要为白钨矿化和黑钨矿化。

Discussion of Metallogenic Enrichment Regularity and Type Variety of Youmaling Tungsten Deposit in Xinganxian

Youmaling is one tungsten occurrence in the south of Maoershan magma body in north Guangxi.Liutangjie deposit and Yatoushui deposit are nearly out of retained mineral reserves for mining in a long period.The tungsten orebody is controlled by granite,contact zone,stratum lithology,structure and fault in NE direction.There are a variety of mineralization type such as quartz vein type,semi-layer skarn type in outer contact zone of granite,granite type in inner contact zone and alterred rock type in structural fault zone.There are industrial value for the former three types.The prospecting direction is for the deposits of semi-layer skarn type in outer contact zone of granite and granite type in inner contact zone in the working area.The main minerals are scheelite and tungsten.