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沥青铀矿是我国主要工业铀矿物,产出形态主要呈脉状、网脉状、肾状、球粒状、鲕状及浸染状、胶状隐晶质集合体。近几年来在火山岩型铀矿床和花岗岩硅化带型铀矿床中都先后发现有针状、长柱状沥青铀矿。本文描述的针状沥青铀矿(样品由中南二机局高梅芬同志提供),产于黑云母花岗岩内硅化破碎角砾岩带中。围岩蚀变强烈,主要的围岩蚀变有硅化、赤铁矿化、黄铁矿化、萤石
Asphalt uranium mine is China’s major industrial uranium minerals, the output forms are mainly veins, reticular, kidney, spherulitic, oolitic and disseminated, jelly pseudo-crystalline aggregates. In recent years, volcanic-type uranium deposits and granite silicification type uranium deposits have been found in acicular, long cylindrical uranium pit. The acicular uranium ore described in this paper (provided by Comrade Gomemefen, Central South China Bureau II) was produced in the siliciclastic breccia belt within the biotite granite. Wall rock alteration is strong, the main wall rock alteration silicification, hematite, pyrite, fluorite