鄂尔多斯盆地北部直罗组有机质特征及与铀成矿关系
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摘要
本文研究了鄂尔多斯盆地典型铀矿床的有机质与铀成矿的关系。探讨了煤屑的赋存状态、煤质特征及成熟度,认为煤屑的演化程度均较低,处于低成熟阶段,有利于对铀的吸附。总体上看煤质有机质和铀矿化关系密切,铀含量与煤屑含量呈正相关关系,对铀矿物为吸附态形式。通过对该区油气包裹体的研究认为,该区存在多期次的成岩方解石胶结过程,并伴随多期次的油气包裹体发育,尤以晚期的胶结方解石矿物中存在丰富的晚期油气包裹体。研究认为晚期可能发生过油、气的运移和聚集,铀矿床的形成与赋矿砂岩中有机流体或还原性气体的充注和络合作用密切相关,因而这些丰富的有机流体和还原性气体对于铀的富集沉淀具有重要意义。
With the focus on the relationship between the organic matter and uranium minerlization of typical uranium deposits in the Ordos Basin,this study discussed the occurrence,characteristics and maturity of the coal.The results show that the evolution degree of organic matter is low and still in the low stage of mature,indicating it is favorable to the adsoption of uranium.Overall,organic matter in coal is closely related to the uranium mineralization,and positive correlation between the contents of uranium and organic matter coal suggest their adsorption form.The study of oil-gas inclusions in this region indicates occurrence of multiple calcite cemetation,along with multiple development of oil-gas inclusions,especially abudant late-stage oil-gas inclusions in late cementation calcite minerals.It can be concluded that it could have the migration and accumulation of oil and gas in this time,and the formation of uranium deposits is closely related to the filling and complexation of organic fluid or reducing gas in ore-bearing sandstone.Therefore,the organic-rich fluid and reducing gases are of great importance for the uranium enrichment and precipitation.
With the focus on the relationship between the organic matter and uranium minerlization of typical uranium deposits in the Ordos Basin,this study discussed the occurrence,characteristics and maturity of the coal.The results show that the evolution degree of organic matter is low and still in the low stage of mature,indicating it is favorable to the adsoption of uranium.Overall,organic matter in coal is closely related to the uranium mineralization,and positive correlation between the contents of uranium and organic matter coal suggest their adsorption form.The study of oil-gas inclusions in this region indicates occurrence of multiple calcite cemetation,along with multiple development of oil-gas inclusions,especially abudant late-stage oil-gas inclusions in late cementation calcite minerals.It can be concluded that it could have the migration and accumulation of oil and gas in this time,and the formation of uranium deposits is closely related to the filling and complexation of organic fluid or reducing gas in ore-bearing sandstone.Therefore,the organic-rich fluid and reducing gases are of great importance for the uranium enrichment and precipitation.
引文
Guo Qingyin,Li Ziying,Wang Wenguang.2005.Features of organic substances and their relationship to uranium mineralization in Xihulitu basin,Inner Mongolia.Uranium Geology,21(1):16~21(in Chinese with English abstract).
Jin Ruoshi,Huang Pengtao,Miao Peisen,Feng Xiaoxi,Tang Chao,Li Guangyao.2013.Metallogenic conditions and prospecting targeting of the Jurassic sand type uranium deposits on the eastern margin of Junggar Basin.Geological Bulletin of China,33(2/3):359~369(in Chinese with English abstract).
Liu Chiyang,Zhao Hongge,Tan Chengqian,Wang Jianqiang.2006.Occurrences of multiple energy mineral deposits and mineralization/reservoiring system in the basin.Oil&Gas Geology,27(2):131~142.(in Chinese with English abstract).
Luo Yi,He Zhongbo,Ma Hanfeng,Sun Xiang.2012.Metallogenic characteristics of Qianjiadain sandstone uranium deposit in Songliao basin.Mineral Deposits,31(2):391~400.
Liu Zhengyi,Qin Mingkuan.2008.A simulating experiment on oil~gas to the enrichment and formation model of associated elements(U,etc.)in sandstone-type uranium deposits.World nuclear geoscience,25(1):13~18(in Chinese with English abstract).
Sun Qing jin,Zhang Weihai,Zhang Weiping,Zhao Jianshe,Miao Jianyu,Sun Wei,Liu Chiyang.2007.Experimental simulation study of the role of organic matter in the formation of uraniun deposits.Geology in china,34(3):463~469(in Chinese with English abstract).
Wu Bolin,Wang Jianqiang,Liu Chiyang,Wang Feiyu.2006.Gas during mineralization of Dongsheng sandstone-type uranium deposit.Oil&Gas Geology,27(2):225~232(in Chinese with English abstract).
Wu Bolin,Wei Anjun,Hu Liang,Song Zisheng,Zhang Benhao,Wang Haitong,Wang Dan,Cun Xiaoni,Sun Li,Luo Jingjing.2014.The hydrocarbon dissipation and its effect of diagenetic and mineralization:Progress,Understanding and Outlook.Geological review,60(6):1199~1211(in Chinese with English abstract).
Yang Binhu,Luo Jinglan,Dai Yaquan,Liu Xiaohong,Lin Tong,Zhang San.2006.Petrology of uranium-bearing sandstones and relationship of organic matters,hydrocarbons and coal with uranium:an example from Dongsheng Ordos Basin and Shihongtan,Tuha Basin.Journal of Northwest University(Natural Science Edition),36(2):982~987(in Chinese with English abstract).
Zhao Fengmin,Shen Caiqing.1986.Experimrntal researches on paragenetic condiction for pyrite and pitchblende and its role in pitchblende formation.Uranium geology,2(4):193~199(in Chinese with English abstract).
Zhao Ruiquan,Qin Mingkuan,Wang Zhengbang.1998.Effect of microorganism and organic matters on sandstone type uranium mineralizations in interlayer oxidation zone in deposit No.512.Uranium Geology,14(6):338~343+379(in Chinese with English abstract).
Zhang Weihai,Zhao Jianshe,Sun Qingjin,Miao Jianyu,Sun Wei,Xue Chunji.2006.Role of humic acid in mineralization of sandstone-type uranium deposits.Journal of earth sciences and environment,28(4):38~42(in Chinese with English abstract).
郭庆银,李子颖,王文广.2005.内蒙古西胡里吐盆地有机质特征及其与铀矿化的关系.铀矿地质,21(1):16~21.
金若时,黄澎涛,苗培森,冯晓曦,汤超,李光耀.2014.准噶尔盆地东缘侏罗系砂岩型铀矿成矿条件与找矿方向.地质通报,33(2/3):359~369.
刘池洋,赵红格,谭成仟,王建强.2006.多种能源矿产赋存与盆地成藏(矿)系统.石油与天然气地质,27(2):131~142.
罗毅,何中波,马汉峰,孙祥.2012.松辽盆地钱家店砂岩型铀矿成矿地质特征.矿床地质,31(2):391~400.
刘正义,秦明宽.2008.油气对砂岩型铀矿中铀等伴生元素富集成矿的模拟实验.世界核地质科学,25(1):13~18.
孙庆津,张维海,张维萍,赵建社,苗建宇,孙卫,刘池洋.2007.有机质在铀成矿过程中作用的实验模拟研究.中国地质,03:463~469.
吴柏林,王建强,刘池阳,王飞宇.2006.东胜砂岩型铀矿形成中天然气地质作用的地球化学特征.石油与天然气地质,27(2):225~232.
吴柏林,魏安军,胡亮,宋子升,张本浩,王海桐,王丹,寸小妮,孙莉,罗晶晶.2014.油气耗散作用及其成岩成矿效应:进展、认识与展望.地质论评,60(6):1199~1211.
杨斌虎,罗静兰,戴亚权,刘小洪,林潼,张三.2006.含铀砂岩中铀与有机质、油气和煤的关系-以鄂尔多斯盆地东胜地区和吐哈盆地十红滩地区为例.西北大学学报(自然科学版),36(2):982~987.
赵凤民,沈才卿.1986.黄铁矿与沥青铀矿的共生条件及在沥青铀矿形成过程中所起作用的实验研究.铀矿地质,2(4):193~199.
赵瑞全,秦明宽,王正邦.1998.微生物和有机质在512层间氧化带砂岩型铀矿成矿中的作用.铀矿地质,14(6):338~343+379.
张维海,赵建社,孙庆津,苗建宇,孙卫,薛春纪.2006.砂岩型铀矿成矿过程中腐殖酸的化学作用.地球科学与环境学报,28(4):38~42.
(1)向伟东.1999.吐哈盆地西南部层间氧化带型砂岩铀矿成矿条件与成矿规律.核工业北京地质研究院.
(2)杨殿忠.2002.吐哈盆地西南部侏罗系划分及有机地球化学研究.核工业北京地质研究院.
(3)欧光习.2002.砂岩型铀矿床有机流体活动及其铀成矿关系研究.核工业北京地质研究院.
Jin Ruoshi,Huang Pengtao,Miao Peisen,Feng Xiaoxi,Tang Chao,Li Guangyao.2013.Metallogenic conditions and prospecting targeting of the Jurassic sand type uranium deposits on the eastern margin of Junggar Basin.Geological Bulletin of China,33(2/3):359~369(in Chinese with English abstract).
Liu Chiyang,Zhao Hongge,Tan Chengqian,Wang Jianqiang.2006.Occurrences of multiple energy mineral deposits and mineralization/reservoiring system in the basin.Oil&Gas Geology,27(2):131~142.(in Chinese with English abstract).
Luo Yi,He Zhongbo,Ma Hanfeng,Sun Xiang.2012.Metallogenic characteristics of Qianjiadain sandstone uranium deposit in Songliao basin.Mineral Deposits,31(2):391~400.
Liu Zhengyi,Qin Mingkuan.2008.A simulating experiment on oil~gas to the enrichment and formation model of associated elements(U,etc.)in sandstone-type uranium deposits.World nuclear geoscience,25(1):13~18(in Chinese with English abstract).
Sun Qing jin,Zhang Weihai,Zhang Weiping,Zhao Jianshe,Miao Jianyu,Sun Wei,Liu Chiyang.2007.Experimental simulation study of the role of organic matter in the formation of uraniun deposits.Geology in china,34(3):463~469(in Chinese with English abstract).
Wu Bolin,Wang Jianqiang,Liu Chiyang,Wang Feiyu.2006.Gas during mineralization of Dongsheng sandstone-type uranium deposit.Oil&Gas Geology,27(2):225~232(in Chinese with English abstract).
Wu Bolin,Wei Anjun,Hu Liang,Song Zisheng,Zhang Benhao,Wang Haitong,Wang Dan,Cun Xiaoni,Sun Li,Luo Jingjing.2014.The hydrocarbon dissipation and its effect of diagenetic and mineralization:Progress,Understanding and Outlook.Geological review,60(6):1199~1211(in Chinese with English abstract).
Yang Binhu,Luo Jinglan,Dai Yaquan,Liu Xiaohong,Lin Tong,Zhang San.2006.Petrology of uranium-bearing sandstones and relationship of organic matters,hydrocarbons and coal with uranium:an example from Dongsheng Ordos Basin and Shihongtan,Tuha Basin.Journal of Northwest University(Natural Science Edition),36(2):982~987(in Chinese with English abstract).
Zhao Fengmin,Shen Caiqing.1986.Experimrntal researches on paragenetic condiction for pyrite and pitchblende and its role in pitchblende formation.Uranium geology,2(4):193~199(in Chinese with English abstract).
Zhao Ruiquan,Qin Mingkuan,Wang Zhengbang.1998.Effect of microorganism and organic matters on sandstone type uranium mineralizations in interlayer oxidation zone in deposit No.512.Uranium Geology,14(6):338~343+379(in Chinese with English abstract).
Zhang Weihai,Zhao Jianshe,Sun Qingjin,Miao Jianyu,Sun Wei,Xue Chunji.2006.Role of humic acid in mineralization of sandstone-type uranium deposits.Journal of earth sciences and environment,28(4):38~42(in Chinese with English abstract).
郭庆银,李子颖,王文广.2005.内蒙古西胡里吐盆地有机质特征及其与铀矿化的关系.铀矿地质,21(1):16~21.
金若时,黄澎涛,苗培森,冯晓曦,汤超,李光耀.2014.准噶尔盆地东缘侏罗系砂岩型铀矿成矿条件与找矿方向.地质通报,33(2/3):359~369.
刘池洋,赵红格,谭成仟,王建强.2006.多种能源矿产赋存与盆地成藏(矿)系统.石油与天然气地质,27(2):131~142.
罗毅,何中波,马汉峰,孙祥.2012.松辽盆地钱家店砂岩型铀矿成矿地质特征.矿床地质,31(2):391~400.
刘正义,秦明宽.2008.油气对砂岩型铀矿中铀等伴生元素富集成矿的模拟实验.世界核地质科学,25(1):13~18.
孙庆津,张维海,张维萍,赵建社,苗建宇,孙卫,刘池洋.2007.有机质在铀成矿过程中作用的实验模拟研究.中国地质,03:463~469.
吴柏林,王建强,刘池阳,王飞宇.2006.东胜砂岩型铀矿形成中天然气地质作用的地球化学特征.石油与天然气地质,27(2):225~232.
吴柏林,魏安军,胡亮,宋子升,张本浩,王海桐,王丹,寸小妮,孙莉,罗晶晶.2014.油气耗散作用及其成岩成矿效应:进展、认识与展望.地质论评,60(6):1199~1211.
杨斌虎,罗静兰,戴亚权,刘小洪,林潼,张三.2006.含铀砂岩中铀与有机质、油气和煤的关系-以鄂尔多斯盆地东胜地区和吐哈盆地十红滩地区为例.西北大学学报(自然科学版),36(2):982~987.
赵凤民,沈才卿.1986.黄铁矿与沥青铀矿的共生条件及在沥青铀矿形成过程中所起作用的实验研究.铀矿地质,2(4):193~199.
赵瑞全,秦明宽,王正邦.1998.微生物和有机质在512层间氧化带砂岩型铀矿成矿中的作用.铀矿地质,14(6):338~343+379.
张维海,赵建社,孙庆津,苗建宇,孙卫,薛春纪.2006.砂岩型铀矿成矿过程中腐殖酸的化学作用.地球科学与环境学报,28(4):38~42.
(1)向伟东.1999.吐哈盆地西南部层间氧化带型砂岩铀矿成矿条件与成矿规律.核工业北京地质研究院.
(2)杨殿忠.2002.吐哈盆地西南部侏罗系划分及有机地球化学研究.核工业北京地质研究院.
(3)欧光习.2002.砂岩型铀矿床有机流体活动及其铀成矿关系研究.核工业北京地质研究院.