摘要
郴县新田岭白钨矿床，是一个大型─超大型矿床。储量巨大的Ⅰ＿５、Ⅰ＿（３０）和Ⅱ＿（２３）号主矿体，皆赋存在燕山早期花岗岩与石磴子组灰岩接触带的凹陷部位，三个主矿体的钨金属量，占矿区总储量的９０％以上。矿床矿物成分、结构构造和围岩蚀变均较复杂，其中晚期复杂矽卡岩与钨矿化关系密切。本矿床的形成，受成矿岩体、有利的围岩和接触带及层间破碎带控制，矿床的成生，经历了两个成矿期５个成矿阶段。矿床成因属气化─高温热液矿床。
Xingtianling scheelite deposit is large─ultralarge in size, Three major ore bodies with tremen-dous reserves, that is,Ⅰ_5、Ⅰ_(30),Ⅱ_(23) occur in the concave part at the contact zone between granite of early Yanshan Movement Period and limestones of Shidengzi Formation. The amount of tungsten metal in these three ore bodies reaches to 90%or more of the total reserve in the whole area of deposit.Mineral composition, tex-ture,structure and alteration of country rocks are very much complicated. The complex skarn formed at late stage has a close relation with scheelite mineralization. The deposit is controlled by granite,limstone,the con-tact zone between the two and interlayer fractures。 During its formation the deposit has undergone two periods,including five stages altogether,of mineralization, One concludes that its genesis should be of pneumato ─ hish temperature hydrothermal deposit.
出处
《湖南地质》
1994年第4期205-211,共7页
Hunan Geology
关键词
白钨矿
成矿地质条件
钨矿床
地质特征
Scheelite,geology of deposit,geologic conditions of mineralization,genesis of deposit
