摘要
归来庄金矿田金矿化类型较多,主要由隐爆角砾岩型、镁质碳酸盐岩微细浸染型、含铁夕卡岩上叠加型、斑岩型和破碎带蚀变岩型等多种类型的矿床(点)组成。在成因上均与铜石富钾碱性潜火山杂岩关系密切,岩浆活动为成矿提供了热液和热源。受潜火山穹隆的控制,它们生成于不同深度不同地质构造部位,赋存于不同的地质体中,是在铜石潜火山中低温热液成矿系统中生成的金矿类型组合。该区的金矿找矿,应以寻找隐爆侵入角砾岩型金矿及镁质碳酸盐岩微细浸染型为主,兼顾其他类型;找矿地域上应以潜火山杂岩体中—外环带为主,兼顾其他地段,尤其要注重归来庄—十字庄—西皋—卓家庄一带;归来庄金矿床主矿体深部(450 m以下)存在找到盲矿体的可能。
Guilaizhuang gold field has many types of gold mineralization. It is mainly composed of crypto-- explosive breccia type, magnesium carbonate micro--disseminated type, iron--bearing skarn--stacking type, porphyry and altered rock--type and other types gold deposits （points）. Its genesis has close relation with Tongshi K-rich alkaline volcanic complex. Magmatic activities provided hydrotherm and heat for gold mineralization. Subject to potential control of the volcanic dome, they generated at different depths in different parts of geological structures and occurred in different geological bodies. They are gold type combinations formed in Tongshi medium--low submarine volcanic hydrothermal gold deposit, types in the generated combinations. Gold prospecting in the area should be mainly carried out in crypto--explo- sive intrusion breccia type gold deposits and magnesian carbonate micro--disseminated type gold deposits. Deposit prospecting should be carried out in middle and outside ring--base in subvolcanic complex, especially in Guilaizhuang-- Shizizhuang-- Xigao--Zhuojiazhuang areas. Blind orebodies may be found in the depth of 450m below in Guilaizhuang gold deposit.
出处
《山东国土资源》
2009年第9期12-19,共8页
Shandong Land and Resources
关键词
隐爆角砾岩
成矿作用
深部找矿
归来庄金矿田
山东平邑
Crypto-- explosive breccia type rock
mineralization
deep exploration
Guilaizhuang gold field Pingyi in Shandong province
