伊犁盆地阔斯加尔铀成矿区西山窑组古地下水动力系统
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摘要
研究伊犁盆地阔斯加尔地区西山窑组古地下水动力系统,总结其与铀成矿的关系,为该地区砂岩型铀矿成矿规律研究及实际的铀找矿工作提供重要的理论依据。通过分析氧化砂体厚度在平面上的变化特征,以反演层间氧化流体在平面上的推进情况,进而恢复研究区西山窑组古地下水的"补-径-排"特征。西山窑组层间氧化带主要发育在下段和上段上亚段中,下段氧化砂体厚度最大的部位主要在研究区西南方向,呈"朵状"往北东和北方向展布;上段上亚段氧化砂体最厚的部位在东南方向,且呈条带状往北西方向展布。根据氧化砂体厚度的平面展布形态,结合砂体本身的厚度以及区域水文地质背景,可以判断铀成矿时期阔斯加尔地区有两个补水方向:一个是该地区的西南方向,西山窑组下、上段的共同补水方向;另一个方向,同时也是西山窑组上段主要的补水方向,是该地区的东南方向。
This study investigated the paleogroundwater dynamic system of the Xishanyao Formation in Kuosijiaer area(Yili Basin),summarized its relationship with the uranium mineralization,and provided supports for the metallogenic regularities of sandstone-type uranium deposits and guide for future uranium prospecting in the area. By analyzing the thickness variation characteristics of the oxidized sand bodies,inverting the planar flow regime of interlayer oxidizing fluids,we reconstructed the paleogroundwater recharge-runoff-discharge characteristics of the Xishanyao Formation in the study area. Interlayer oxidized zone at Kuosijiaer was mainly developed in the Lower Xishanyao Formation and upper sub-member of the Upper Xishanyao Formation. The maximum thickness of the oxidized sand body of the Lower Xishanyao Formation occurs in the southwest,and appears as flower-shaped in the northeast and north. Maximum thickness of the oxidized sand body of the upper sub-member of the Upper Xishanyao Formation is in the southeast,and appears as strip-shaped in the northwest. Based on the distribution characteristics of the oxidized sand bodies,and considering the sand body thickness changes and the regional hydrogeological regime,two water-replenishment directions in the uranium mineralization can be determined at Kuosijiaer:(1) southwest,same in both the Lower and Upper Xishanyao Formations;(2) southeast,which was likely the main water-replenishment direction in the Upper Xishanyao Formation.
This study investigated the paleogroundwater dynamic system of the Xishanyao Formation in Kuosijiaer area(Yili Basin),summarized its relationship with the uranium mineralization,and provided supports for the metallogenic regularities of sandstone-type uranium deposits and guide for future uranium prospecting in the area. By analyzing the thickness variation characteristics of the oxidized sand bodies,inverting the planar flow regime of interlayer oxidizing fluids,we reconstructed the paleogroundwater recharge-runoff-discharge characteristics of the Xishanyao Formation in the study area. Interlayer oxidized zone at Kuosijiaer was mainly developed in the Lower Xishanyao Formation and upper sub-member of the Upper Xishanyao Formation. The maximum thickness of the oxidized sand body of the Lower Xishanyao Formation occurs in the southwest,and appears as flower-shaped in the northeast and north. Maximum thickness of the oxidized sand body of the upper sub-member of the Upper Xishanyao Formation is in the southeast,and appears as strip-shaped in the northwest. Based on the distribution characteristics of the oxidized sand bodies,and considering the sand body thickness changes and the regional hydrogeological regime,two water-replenishment directions in the uranium mineralization can be determined at Kuosijiaer:(1) southwest,same in both the Lower and Upper Xishanyao Formations;(2) southeast,which was likely the main water-replenishment direction in the Upper Xishanyao Formation.
引文
[1]陈法正.古河道砂岩型铀矿水文地质找矿研究[J].铀矿地质,2001,17(2):120-124.
[2]薛春纪,薛伟,康明,等.鄂尔多斯盆地流体动力学过程及其砂岩型铀矿化[J].现代地质,2008,22(1):1-8.
[3]乔海明,张复新,徐高中,等.吐哈盆地十红滩铀矿床的水文地质特征及矿床成因分析[J].地质论评,2005,51(3):257-263.
[4]王冰,康勇,张大绪.蒙其古尔地区水文地球化学特征与铀成矿关系[J].新疆地质,2009,27(4):364-367.
[5]石平,李梅,仲永德,等.大龙山铀矿床水文地球化学特征分析[J].铀矿地质,2010,26(4):228-232.
[6]林效宾,郝伟林,王志明.萨瓦甫齐铀矿床成矿古水文地质分析[J].世界核地质科学,2013,30(2):98-102.
[7]谢国发,吴志坚,傅光华,等.相山居隆庵21号带铀矿床水文地质条件及矿坑涌水量估算[J].铀矿地质,2015,31(1):57-64.
[8]黄大友,徐伟,陈玉梁,等.新疆三塘湖盆地水文地质条件及铀成矿前景分析[J].铀矿地质,2012,28(4):227-232.
[9]YUE S J,WANG G C.Relationship between the hydrogeochemical environment and sandstone-type uranium mineralization in the Ili basin,China[J].Applied Geochemistry,2011,26(1):133-139.
[10]张万良,李子颖,阙足双,等.水力压裂技术对江西相山热液铀矿成因的启示[J].现代地质,2017,31(3):521-533.
[11]佟术敏,蔡建芳,杨文达,等.松辽盆地南部宝龙山地区铀成矿水文地质条件分析[J].铀矿地质,2015,31(5):517-524.
[12]邱余波,伊海生,张占峰,等.伊犁盆地阔斯加尔地区西山窑组下段岩性岩相特征及与铀成矿关系[J].沉积学报,2015,33(4):687-696.
[13]尹涛,伊海生,邱余波,等.伊犁盆地南缘阔斯加尔地区西山窑组上段地球化学特征[J].现代矿业,2016(4):158-161.
[14]张国伟,李三忠,刘俊霞,等.新疆伊犁盆地的构造特征与形成演化[J].地学前缘,1999,6(4):203-214.
[15]王军堂,王成渭,冯世荣.伊犁盆地盆-山构造演化及流体演化与砂岩型铀矿成矿的关系[J].铀矿地质,2008,24(1):38-42.
[16]邱余波,伊海生,王果,等.伊犁盆地洪海沟地区中侏罗统西山窑组上段沉积特征及其与铀成矿的关系[J].古地理学报,2014,16(4):537-547.
[17]林水清,王均红,张高源,等.伊犁盆地伊宁凹陷构造变形与主控因素分析[J].石油实验地质,2015,37(6):713-720.
[18]陈奋雄,聂逢君,张成勇.伊犁盆地南缘中新生代构造样式与铀成矿关系[J].地质与勘探,2016,52(3):480-488.
[19]李盛富,陈洪德,周剑,等.新疆伊犁盆地南缘中新生代以来构造演化与聚煤规律研究[J].西北地质,2016,49(2):220-228.
[20]陈奋雄,聂逢君,张成勇,等.伊犁盆地南缘洪海沟矿床富大矿体地质特征与成因机制研究[J].地质学报,2016,90(12):3324-3336.
[21]宋昊,倪师军,侯明才,等.新疆伊犁盆地砂岩型铀矿床层间氧化带中黏土矿物特征及与铀矿化关系研究[J].地质学报,2016,90(12):3352-3366.
[22]王军,耿树方.伊犁盆地库捷尔太铀矿床层间氧化带与铀矿化特征研究[J].中国地质,2009,36(3):705-713.
[23]马帅,田继军,吴天伟,等.新疆伊犁盆地西山窑组沉积特征及聚煤规律[J].煤田地质与勘探,2012,40(2):9-14.
[24]LI B Q,ZHUANG X G,LI J,et al.Geological controls on coal quality of the Yili Basin,Xinjiang,Northwest China[J].International Journal of Coal Geology,2014,131:186-199.
[25]权建平,徐高中,李卫红,等.十红滩砂岩型铀矿床成矿控制因素与成矿模式研究[J].铀矿地质,2006,22(1):10-16.
[26]王勋,蔡煜琦,张占峰,等.蒙其古尔地区赋铀层沉积特征及其与砂岩型铀矿的关系[J].铀矿地质,2014,30(2):93-99.
[27]张建华,陆勇,肖渊甫,等.新疆察布查尔县蒙其古尔铀矿控矿因素的分析[J].四川有色金属,2016,32(3):47-49.
[28]张子敏,马汉峰,蔡根庆.吐哈盆地西南缘艾丁湖斜坡带层间氧化带分带性及其地球化学特征[J].世界核地质科学,2004,21(1):5-9.
[29]付勇,魏帅超,金若时,等.我国砂岩型铀矿分带特征研究现状及存在问题[J].地质学报,2016,90(12):3519-3544.
[2]薛春纪,薛伟,康明,等.鄂尔多斯盆地流体动力学过程及其砂岩型铀矿化[J].现代地质,2008,22(1):1-8.
[3]乔海明,张复新,徐高中,等.吐哈盆地十红滩铀矿床的水文地质特征及矿床成因分析[J].地质论评,2005,51(3):257-263.
[4]王冰,康勇,张大绪.蒙其古尔地区水文地球化学特征与铀成矿关系[J].新疆地质,2009,27(4):364-367.
[5]石平,李梅,仲永德,等.大龙山铀矿床水文地球化学特征分析[J].铀矿地质,2010,26(4):228-232.
[6]林效宾,郝伟林,王志明.萨瓦甫齐铀矿床成矿古水文地质分析[J].世界核地质科学,2013,30(2):98-102.
[7]谢国发,吴志坚,傅光华,等.相山居隆庵21号带铀矿床水文地质条件及矿坑涌水量估算[J].铀矿地质,2015,31(1):57-64.
[8]黄大友,徐伟,陈玉梁,等.新疆三塘湖盆地水文地质条件及铀成矿前景分析[J].铀矿地质,2012,28(4):227-232.
[9]YUE S J,WANG G C.Relationship between the hydrogeochemical environment and sandstone-type uranium mineralization in the Ili basin,China[J].Applied Geochemistry,2011,26(1):133-139.
[10]张万良,李子颖,阙足双,等.水力压裂技术对江西相山热液铀矿成因的启示[J].现代地质,2017,31(3):521-533.
[11]佟术敏,蔡建芳,杨文达,等.松辽盆地南部宝龙山地区铀成矿水文地质条件分析[J].铀矿地质,2015,31(5):517-524.
[12]邱余波,伊海生,张占峰,等.伊犁盆地阔斯加尔地区西山窑组下段岩性岩相特征及与铀成矿关系[J].沉积学报,2015,33(4):687-696.
[13]尹涛,伊海生,邱余波,等.伊犁盆地南缘阔斯加尔地区西山窑组上段地球化学特征[J].现代矿业,2016(4):158-161.
[14]张国伟,李三忠,刘俊霞,等.新疆伊犁盆地的构造特征与形成演化[J].地学前缘,1999,6(4):203-214.
[15]王军堂,王成渭,冯世荣.伊犁盆地盆-山构造演化及流体演化与砂岩型铀矿成矿的关系[J].铀矿地质,2008,24(1):38-42.
[16]邱余波,伊海生,王果,等.伊犁盆地洪海沟地区中侏罗统西山窑组上段沉积特征及其与铀成矿的关系[J].古地理学报,2014,16(4):537-547.
[17]林水清,王均红,张高源,等.伊犁盆地伊宁凹陷构造变形与主控因素分析[J].石油实验地质,2015,37(6):713-720.
[18]陈奋雄,聂逢君,张成勇.伊犁盆地南缘中新生代构造样式与铀成矿关系[J].地质与勘探,2016,52(3):480-488.
[19]李盛富,陈洪德,周剑,等.新疆伊犁盆地南缘中新生代以来构造演化与聚煤规律研究[J].西北地质,2016,49(2):220-228.
[20]陈奋雄,聂逢君,张成勇,等.伊犁盆地南缘洪海沟矿床富大矿体地质特征与成因机制研究[J].地质学报,2016,90(12):3324-3336.
[21]宋昊,倪师军,侯明才,等.新疆伊犁盆地砂岩型铀矿床层间氧化带中黏土矿物特征及与铀矿化关系研究[J].地质学报,2016,90(12):3352-3366.
[22]王军,耿树方.伊犁盆地库捷尔太铀矿床层间氧化带与铀矿化特征研究[J].中国地质,2009,36(3):705-713.
[23]马帅,田继军,吴天伟,等.新疆伊犁盆地西山窑组沉积特征及聚煤规律[J].煤田地质与勘探,2012,40(2):9-14.
[24]LI B Q,ZHUANG X G,LI J,et al.Geological controls on coal quality of the Yili Basin,Xinjiang,Northwest China[J].International Journal of Coal Geology,2014,131:186-199.
[25]权建平,徐高中,李卫红,等.十红滩砂岩型铀矿床成矿控制因素与成矿模式研究[J].铀矿地质,2006,22(1):10-16.
[26]王勋,蔡煜琦,张占峰,等.蒙其古尔地区赋铀层沉积特征及其与砂岩型铀矿的关系[J].铀矿地质,2014,30(2):93-99.
[27]张建华,陆勇,肖渊甫,等.新疆察布查尔县蒙其古尔铀矿控矿因素的分析[J].四川有色金属,2016,32(3):47-49.
[28]张子敏,马汉峰,蔡根庆.吐哈盆地西南缘艾丁湖斜坡带层间氧化带分带性及其地球化学特征[J].世界核地质科学,2004,21(1):5-9.
[29]付勇,魏帅超,金若时,等.我国砂岩型铀矿分带特征研究现状及存在问题[J].地质学报,2016,90(12):3519-3544.