伊犁盆地南缘中新生代构造样式与铀成矿关系

发布时间：2018-01-12 23:28

本文关键词：伊犁盆地南缘中新生代构造样式与铀成矿关系　出处：《地质与勘探》2016年03期 　论文类型：期刊论文

【摘要】：伊犁盆地是我国最早发现砂岩型铀矿的地区,近十几年来一直保持砂岩型铀矿找矿的不断突破,盆地南缘自西向东查明了一系列砂岩型铀矿床,这些铀矿床的分布与盆地南缘构造关系密切。本文总结了伊犁盆地南缘构造样式类型,分析了不同构造样式下氧化流体补给、运移规律,并结合铀矿体的空间分布,指出构造样式差异是造成砂岩型铀矿体空间分布的关键因素;从氧化流体补给窗的开启、流体的汇聚和还原性气体聚集的控制等方面讨论了构造样式对铀矿体空间定位的机制,指出单斜稳定地层中纵弯背斜是控制铀空间分布的主要构造,要注意不同构造样式约束下成矿区域的稳定型和地下水补给的多样性,在此基础上讨论了伊犁盆地南缘铀矿的找矿方向及主要矿物类型。
[Abstract]:Yili basin is a sandstone type uranium deposit area was first discovered in China, continue to make breakthroughs in recent years has maintained a sandstone type uranium deposit, the south margin of the basin from west to identify a series of sandstone type uranium deposits to the East, the southern margin of the basin structure and distribution of these uranium deposits closely. This paper summarizes the tectonic style of southern margin of Yili basin analysis of different structural styles, the oxidation fluid recharge, migration rule, and combined with the spatial distribution of uranium ore bodies, pointed out that the structural style is a key factor to cause the difference of sandstone type uranium ore body spatial distribution; fluid supply from the oxidation window on accumulation of fluid flows and reducing gas control mechanism is discussed on the tectonic style the spatial location of uranium ore bodies, pointed out that the monoclinic stable formation longitudinal bend anticline are the main structures which control the spatial distribution of uranium, should pay attention to different structural styles under the constraints of regional metallogenic stability On the basis of the diversity of stereotype and groundwater recharge, the prospecting direction and main mineral types of uranium deposits in the southern margin of the Yili basin are discussed.

【作者单位】：东华理工大学;核工业二一六大队;
【基金】：国家重点基础研究发展规划(973计划)(资助号:2015CB453002) 整装勘查关键基础地质研究计划项目(编号:12120114007601)资助
【分类号】：P619.14
【正文快照】： Chen Fen-xiong,Nie Feng-jun,Zhang Cheng-yong.Mesozoic structural styles and their relationshipwith uranium deposits in the southern margin of Yili Basin[J].Geology and Exploration,2016,52(3):0480-0488.0引言长期以来对砂岩型铀矿的研究,通常认为适度抬升造成

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