满洲里小尖山盆地构造、蚀变特征与铀矿化
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摘要
小尖山盆地发育断裂、火山构造及热液蚀变,已发现铀矿化、铀异常,是满洲里地区重要的火山岩型铀成矿远景区。依据区域重力资料,结合遥感、 CSAMT测量及地质勘查成果,明确盆地早期以NE向断裂构造为主,晚期NW向发育,属火山断陷盆地,具有阶梯状断陷特征。铀矿化与高岭石化、钾长石化及硅化关系密切,局部垂向上显示分带特性,且铀钼共生。成矿作用受NE、 NW向断裂构造控制,与区域成矿规律具有一致性。
The fault, volcanic structure and hydrothermal alteration are developed in Xiaojianshan basin which bears obvious uranium mineralization(abnormal). Based on the regional gravity data, interpretation results of remote sensing, CSAMT measurement and geological exploration, it was found that the basin is a step fault-down volcanic basin which mainly developed NE striking faults in the early involution stage and NW striking faults in the late stage. Uranium mineralization was closely related to kaolinization, K-feldsparization and silicification with vertical zonation characteristics in local area, uranium was symbiosis with molybdenum. The mineralization is controlled by NE and NW fault structures and consistent to the regional pattern.
The fault, volcanic structure and hydrothermal alteration are developed in Xiaojianshan basin which bears obvious uranium mineralization(abnormal). Based on the regional gravity data, interpretation results of remote sensing, CSAMT measurement and geological exploration, it was found that the basin is a step fault-down volcanic basin which mainly developed NE striking faults in the early involution stage and NW striking faults in the late stage. Uranium mineralization was closely related to kaolinization, K-feldsparization and silicification with vertical zonation characteristics in local area, uranium was symbiosis with molybdenum. The mineralization is controlled by NE and NW fault structures and consistent to the regional pattern.
引文
[1]方锡珩,方茂龙,罗毅,等.全国火山岩型铀矿资源潜力评价[J].铀矿地质,2012,28(6):342-348.
[2]阳正勇,陈凯,周荣辉.内蒙古呼伦贝尔市满洲里地区北部火山岩型铀矿资源调查评价[R].赤峰:核工业二四三大队,2017.
[3]李长华,翁义军,杨志亮,等.满洲里小尖山火山塌陷盆地铀成矿条件分析[J].铀矿地质,2009,25(5):284-289.
[4]刘永江,阳正勇,冯志强,等.内蒙古灵泉地区断裂、火山构造特征及其与铀多金属矿化关系研究[R].赤峰:核工业二四三大队,2015.
[5]王利民,王志宏,邱崇涛,等.内蒙古满洲里地区灵泉盆地电磁综合测量[R].石家庄:核工业航测遥感中心,2009.
[6]双宝.满洲里-新巴尔虎右旗有色、贵金属矿床成矿系列与成矿预测[D].长春:吉林大学,2012.
[7]许文良,孟恩,李长华,等.满洲里-额尔古纳地区火山岩型铀成矿条件分析及远景预测[R].赤峰:核工业二四三大队,2010.
[8]阳正勇,周荣辉,苏连驰,等.满洲里小尖山盆地铀钼矿化控制因素[J].铀矿地质,2016,32(5):265-269.
[9]侯召硕,任云生,王晰,等.内蒙古满洲里地区铀矿化蚀变特征研究[J].矿床地质,2012,31(增刊):197-198.
[2]阳正勇,陈凯,周荣辉.内蒙古呼伦贝尔市满洲里地区北部火山岩型铀矿资源调查评价[R].赤峰:核工业二四三大队,2017.
[3]李长华,翁义军,杨志亮,等.满洲里小尖山火山塌陷盆地铀成矿条件分析[J].铀矿地质,2009,25(5):284-289.
[4]刘永江,阳正勇,冯志强,等.内蒙古灵泉地区断裂、火山构造特征及其与铀多金属矿化关系研究[R].赤峰:核工业二四三大队,2015.
[5]王利民,王志宏,邱崇涛,等.内蒙古满洲里地区灵泉盆地电磁综合测量[R].石家庄:核工业航测遥感中心,2009.
[6]双宝.满洲里-新巴尔虎右旗有色、贵金属矿床成矿系列与成矿预测[D].长春:吉林大学,2012.
[7]许文良,孟恩,李长华,等.满洲里-额尔古纳地区火山岩型铀成矿条件分析及远景预测[R].赤峰:核工业二四三大队,2010.
[8]阳正勇,周荣辉,苏连驰,等.满洲里小尖山盆地铀钼矿化控制因素[J].铀矿地质,2016,32(5):265-269.
[9]侯召硕,任云生,王晰,等.内蒙古满洲里地区铀矿化蚀变特征研究[J].矿床地质,2012,31(增刊):197-198.