二连盆地哈达图地区赛汉组黏土矿物特征及其与铀矿化的关系
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摘要
黏土矿化是层间氧化带砂岩型铀矿床普遍发育的蚀变作用,黏土矿物在铀成矿过程中作用一直是该类铀矿床研究的重要内容之一。本文通过野外岩心观察、岩矿鉴定镜下分析及扫描电镜和能谱分析对研究区含矿目的层赛汉组中黏土矿物特征进行研究分析。发现目的层赛汉组中发生了明显的黏土矿化作用,研究认为黏土矿物吸附作用是形成铀矿化的主要因素之一。
Clay mineralization is a generalized alteration of interlayer oxidized sandstone-type uranium deposits. The role of clay minerals in uranium mineralization has always been one of the important contents of this type of uranium deposit research. In this paper, the characteristics of clay minerals in the Saihan Formation of the ore-bearing target layer in the study area were studied and analyzed by field core observation, microscopic analysis of rock and mineral identification, and scanning electron microscopy and energy spectrum analysis. The author found that there is obvious clay mineralization in the Saihan Formation of the target layer. It is believed that the adsorption of clay minerals is one of the main factors for the formation of uranium mineralization.
Clay mineralization is a generalized alteration of interlayer oxidized sandstone-type uranium deposits. The role of clay minerals in uranium mineralization has always been one of the important contents of this type of uranium deposit research. In this paper, the characteristics of clay minerals in the Saihan Formation of the ore-bearing target layer in the study area were studied and analyzed by field core observation, microscopic analysis of rock and mineral identification, and scanning electron microscopy and energy spectrum analysis. The author found that there is obvious clay mineralization in the Saihan Formation of the target layer. It is believed that the adsorption of clay minerals is one of the main factors for the formation of uranium mineralization.
引文
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[2]王丹萍,杨风丽,江裕标,等.黏土矿物地温计在沉积盆地热演化研究中的应用[J].四川地质学报,2010,30(3):351-355.
[3]秦明宽,王正邦,赵瑞全.伊犁盆地512铀矿床黏土矿物特征与铀成矿作用[J].地球科学:中国地质大学学报,1998,23(5):509-512
[4]张晓.伊犁盆地南缘蒙其古尔铀矿床成因研究[D].北京:北京核工业地质研究院,2012:42-50.
[5]李月湘,于金水,秦明宽,等.二连盆地可地浸砂岩型铀矿找矿方向[J].铀矿地质,2009,25(6):338-343.
[6]张成勇,聂逢君,刘庆成,等.二连盆地巴彦乌拉地区砂岩型铀矿目的层电测井曲线响应分析[J].铀矿地质,2010,26(3):111-118.
[7]焦贵浩,王同和,郭绪杰,等.二连裂谷构造演化与油气[M].北京:石油工业出版社,2003.
[8]聂逢君,陈安平,彭云彪,等.二连盆地古河道砂岩型铀矿[M].北京:地质出版社,2010.
[9]聂逢君,李满根,严兆彬,等.内蒙古二连盆地砂岩型铀矿目的层赛汉组分段与铀矿化[J].地质通报,2015,34(10):1952-1963.
[10]杨冰彬.二连盆地裂谷构造演化[J].内蒙古石油化工,2012,(14):51-53.
[11]旷文战,蔡彤,严兆彬.内蒙古二连盆地乌兰察布坳陷白垩系特征及铀成矿类型[J].东华理工大学学报(自然科学版),2014,37(2):111-121.
[12]刘伟新,史志华,朱樱,等.扫描电镜/能谱分析在油气勘探开发中的应用[J].石油实验地质,2001,23(3):341-343.