摘要
桃山矿田产于桃山复式花岗岩体内,属花岗岩型铀矿,矿化类型主要为碎裂蚀变岩型。其良好的成矿地质条件主要有:(1)富铀的碳硅泥岩系基底;(2)发育于桃山岩体内的NE向脉岩充填构造带;(3)岩体内的碱交代蚀变带(体);(4)次级构造裂隙带;(5)燕山晚期第三阶段打鼓寨小岩体;(6)氧化还原过渡带;(7)较低的侵蚀程度。打鼓寨岩体及近外围特别是其东北部是进一步开展铀矿勘查工作的方向。
Taoshan ore field occurs in Taoshan composite pluton, it is a granite typ uranium ore field, the main uranium mineralization is cataclastic-altered granite type. Favourable geological conditions of uranium metallization for this ore field are mainly as follows： （1） uranium-riched carbonaceous-siliceous- mudstone rock basement; （2） NE-striking dike filling structure belt developed in the batholith; （3） alkalic metasomatism in the pluton; （4） sub-structure of fissure belt; （5） emplacement of Daguzhai pluton in the third phase of the late Yanshan period; （6） oxidation-reduction transition zone; （7） lower erosion degree. The authors consider Daguzhai pluton and the near periphery, especially its northeast part, as the prospecting target for further exploration.
出处
《铀矿地质》
CAS
CSCD
2008年第2期101-107,共7页
Uranium Geology
关键词
桃山铀矿田
成矿条件
找矿方向
Taoshan uranium ore field
metallogenetic condition
exploration orientation
