摘要
陕南紫阳—平利地区位于南秦岭碳硅泥岩型成矿带石泉—安康成矿集中区,铀成矿地质条件较为有利。已发现有碳硅泥岩型铀矿床(点)、矿化点及分布广泛的异常点。铀矿化受寒武系鲁家坪组(∈1l)、箭竹坝组(∈1j)和奥陶—志留系斑鸠关组((O3+S1)b)中碳硅泥岩地层控制。按含矿围岩将铀矿化分为3种类型,即含炭质硅岩型、石炭及炭质板岩型和煌斑岩脉型。褶皱构造和构造破碎带控制着铀矿化分布空间。
Located in Shiquan-Ankang metallogenic clusters of south Qinling metallogenic belt of carbonaceous-siliceous-argillaceous rock type mineralization, Ziyang-Pingli region of south Shanxi is of favorable uranium mineralization geological conditions. The carbonaceous-siliceous-argillaceous rock type uranium deposit (oecurenees), mineralization points, abnormal points have been found in Ziyang-Pingli region, uranium mineralization is controlled by carbonaceous-siliceous-argillaceous formation of Cambrian Lujiaping Group( ∈1l), Jianzhuba Group ( ∈ l j) and Ordovician-Silurian system Banjiuguan Group ((O3+S1)b). According to the host rock, uranium mineralization is classified as three types: carbon-containing siliceous rocks, carboniferous and carbonaceous slate and lamprophyre vein type. Fold structure and tectonic fracture zone controlled the distribution of uranium mineralization space.
出处
《世界核地质科学》
CAS
2013年第4期199-204,共6页
World Nuclear Geoscience
关键词
紫阳-平利
寒武系
志留系
碳硅泥岩型铀矿
成矿条件
Ziyang-Pingli
Cambrian system
Silurian system
carbonaceous-siliceous-argillaceoustype uranium deposit
metallogenic conditions