陕南紫阳-平利地区碳硅泥岩型铀矿床成矿条件分析 |
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引用本文: | 陈粉玲.陕南紫阳-平利地区碳硅泥岩型铀矿床成矿条件分析[J].国外铀金地质,2013(4):199-204. |
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作者姓名: | 陈粉玲 |
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作者单位: | 陕西省核工业地质局211大队,陕西西安710024 |
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摘 要: | 陕南紫阳一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(∈lj)和奥陶一志留系斑鸠关组((O3+S1)6)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。
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关 键 词: | 紫阳-平利 寒武系 志留系 碳硅泥岩型铀矿 成矿条件 |
Metallogenic conditions analysis of carbonaceous-siliceous-argillaceous type uranium deposits in Ziyang-Pingli region of south Shanxi |
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Authors: | CHEN Fen-ling |
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Affiliation: | CHEN Fen-ling (Geologic Party No.211, Shanxi Province Nuclear Geological Bureau, Xi' an, Shanxi 710024, China) |
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Abstract: | 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. |
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Keywords: | Ziyang-Pingli Cambrian system Silurian system carbonaceous-siliceous-argillaceoustype uranium deposit metallogenic conditions |
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