文章摘要
刘云华.322 地区SBZ 铀矿床地质特征及成矿条件分析[J].地质与勘探,2010,46(5):805-813
322 地区SBZ 铀矿床地质特征及成矿条件分析
Geological Characteristics and Mineralization Conditions of the SBZ Uranium Deposit in the 322 Area
投稿时间：2010-03-07  修订日期：2010-08-04
DOI：
中文关键词: SBZ 铀矿床 地质特征 成矿条件 322 地区
英文关键词: SBZ uranium deposit, geological characteristics, uranium mineralization, 322 area
基金项目:中国核工业地质局铀矿大基地项目(编号:200650)资助。
作者单位
刘云华 四川省核工业地质局二八一大队,西昌 
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中文摘要:
      [摘要]SBZ 铀矿床位于我国重要铀矿田之一的322 地区花岗岩体外接触带。寒武系下统香楠组 上段(缀1 x3 )富含有机质和黄铁矿的泥质灰岩、含炭硅板岩、结晶灰岩组合层是其主要的赋矿层位,遂川- 热水深断裂的次级断裂构造F23 号带控制着该矿床铀矿体的定位空间,粉红色碳酸盐化( 方解石化) 与 铀矿化关系极为密切。矿体呈似层状、脉状、透镜状产出,其产状与地层及控矿断裂构造产状基本一致。 矿区内放射性物化探异常明显,地表伽马场发育,出露面积0. 24km2 ,具明显的富集中心,轴向明显,并 严格受F23 号断裂带组控制;放射性水化学异常晕圈规模大、晕级完整、形态规则,其长轴方向与控矿构 造一致,并受其控制。SBZ 铀矿床成矿年龄为54Ma,成矿温度112益~250益,属中低温热液叠加层控改 造型。
英文摘要:
      Abstract:The SBZ uranium deposit lies in the outside contact zone of Lujing granite. Argillaceous limestone carboncaceous-siliceous slate and crys鄄 talline limestone,rich in organic matter and sedimentary pyrite of the upper Xiangnan Group of Cambrian is one of primary hosting rock beds. Many ore鄄 bodies of the SBZ uranium deposit were controlled by F23 ,the secondary fault of the major Suichuan-Reshui fault zone. Pink carbonatization is closely re鄄 lated with the uranium mineralization. Uranium orebodies are of layer-like, vein or lenticular, with occurrence almost same as the strata. There exist ob鄄 vious anomalies of geochemical exploration and the ground gamma-ray field with an exposed area of 0. 24km2 and an obvious enrichment center in the SBZ uranium deposit, which has an distinct axis controlled by structure F23 . Moreover, radiohydrological anomalies of the SBZ uranium deposit are of great scale, complete, and regular, of which the long axis is consistent with the ore-controlling structure. The uranium ore-forming age of the SBZ uranium de鄄 posit is 54Ma,with ore-forming temperature 112益~250益, and the genesis belonging to the mesothermal-epithermal hydrothermal superimposed trans鄄 formation type.
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