福建李坊重晶石矿床形成环境及矿床成因
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摘要
为了解福建李坊重晶石矿床成因和成矿物质来源,对重晶石单矿物的主量元素、稀土元素、微量元素和硫同位素进行了研究,研究结果显示:重晶石单矿物表现出富Al、Si、Fe的特征;ΣREE总量较低,富集轻稀土元素;δEu呈正异常,δCe呈负异常;微量元素富集Ba、Rb、Nb、Th、P等元素,亏损K、Zr等元素;各个中段δ~(34)S均值大于32.6‰,且直方图中只显示一个主峰。重晶石单矿物成因判别图解、ΣREE-La/Yb图解,分别指示了重晶石单矿物形成于热水沉积区,成矿物质来源于沉积岩区;Si O_2/Al_2O_3、MnO/TFe_2O_3、U/Th等比值指示了弱碱性—碱性的氧化环境;(La/Ce)_N、Al/(Al+Fe)等比值指示大陆边缘环境。研究表明,李坊重晶石矿床形成于大陆边缘构造环境的热水沉积成矿作用,其Ba主要来源于沉积岩区,S主要来源于寒武纪海水,并且有较多陆源物质的输入。
For the purpose of understanding the genesis of the Lifang barite deposit in Fujian Province and the source of its metallogenic materials,this thesis has conducted a study on the main elements,rare earth elements,trace elements and sulfur isotope of the barite single mineral in the deposit.The results indicate that the barite single mineral is characterized by rich Al_2O_3,SiO_2and TFe_2O_3,relatively lowΣREE with rich LREE,a positiveδEu anomaly and a negativeδCe anomaly,and rich Ba,Rb,Nb,Th,P and deficient K and Zr.The average of all midpieceδ~(34)S is greater than 32.6‰,and only one main peak is displayed in the histogram.The genetic diagram of the barite single mineral,ΣREE-La/Yb respectively indicate barite single mineral form from hydrothermal sedimentation and sedimentary rocks contributing to most of its barium content.The ratios of Si O_2/Al_2O_3,MnO/TFe_2O_3,U/Th,etc.indicate alkalescent-alkaline oxidizing environment.The ratios of(La/Ce)_N,Al/(Al+Fe),etc.indicate continental margin environment.This thesis concludes that the Lifang barite deposit was formed by hydrothermal sedimentation in a continental margin environment with sedimentary rocks contributing to most of its barium content and Cambrian seawater being the major source of sulfur;this formation process is accompanied by a relatively large terrigenous input.
For the purpose of understanding the genesis of the Lifang barite deposit in Fujian Province and the source of its metallogenic materials,this thesis has conducted a study on the main elements,rare earth elements,trace elements and sulfur isotope of the barite single mineral in the deposit.The results indicate that the barite single mineral is characterized by rich Al_2O_3,SiO_2and TFe_2O_3,relatively lowΣREE with rich LREE,a positiveδEu anomaly and a negativeδCe anomaly,and rich Ba,Rb,Nb,Th,P and deficient K and Zr.The average of all midpieceδ~(34)S is greater than 32.6‰,and only one main peak is displayed in the histogram.The genetic diagram of the barite single mineral,ΣREE-La/Yb respectively indicate barite single mineral form from hydrothermal sedimentation and sedimentary rocks contributing to most of its barium content.The ratios of Si O_2/Al_2O_3,MnO/TFe_2O_3,U/Th,etc.indicate alkalescent-alkaline oxidizing environment.The ratios of(La/Ce)_N,Al/(Al+Fe),etc.indicate continental margin environment.This thesis concludes that the Lifang barite deposit was formed by hydrothermal sedimentation in a continental margin environment with sedimentary rocks contributing to most of its barium content and Cambrian seawater being the major source of sulfur;this formation process is accompanied by a relatively large terrigenous input.
引文
[1]许诚贤,吴家聪.福建李坊重晶石矿床成因探讨[J].福建地质,1983,2(3):47-55.
[2]詹柏松.福建李坊重晶石矿床地质特征及成矿条件探讨[J].福建地质,1985,4(1):17-36.
[3]陈先沛,高计元,曹俊臣.中国重晶石和萤石矿床[M]//《中国矿床》编委会.中国矿床.北京:地质出版社,1989:281-314.
[4]李春阳,田升平,牛桂芝.中国重晶石矿主要矿集区及其资源潜力探讨[J].化工矿产地质,2010,32(2):95-104.
[5]褚有龙.中国重晶石矿床的成因类型[J].矿床地质,1989,8(4):91-96.
[6]施满堂,陈文彬,林辉,等.李坊受变质沉积重晶石矿区(着重于Ⅳ矿段)构造分析[J].福建地质,1986,5(2):18-35.
[7]福建省地质调查研究院.中国区域地质志:福建志[M].北京:地质出版社,2016:1-976.
[8]李兼海.福建省岩石地层[M].武汉:中国地质大学出版社,1997:30-180.
[9]肖爱芳,黎敦朋.闽西南下古生界东坑口组与魏坊组地层层序与物源区特征[J].地质通报,2017,36(10):1750-1759.
[10]高军波,杨瑞东,陶平,等.贵州镇宁泥盆系大型重晶石矿床锶同位素组成特征研究[J].地球化学,2013(4):385-392.
[11]肖爱芳,王治淇,黎敦朋.闽西南新冲正长花岗岩LA-ICP-MS锆石U-Pb测年及其找矿意义[J].地球科学前沿,2017,7(3):349-355.
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[14]CLAYTON R N. High temperature isotope effects in the early solar system[J]. Reviews in Mineralogy,1986,16:129-139.
[15]李凌霄,蔡金君,魏鑫,等.云南省西畴县马安山铅锌(重晶石)矿矿床特征及成因分析[J].世界有色金属,2018(1):35-43.
[16]朱正勇,黄景孟,鲁显松,等.竹山文峪河毒重石—重晶石矿床特征及成因分析[J].资源环境与工程,2017,31(S1):63-67.
[17]夏菲.华南下寒武统重晶石矿床的地球化学特征:以天柱大河边—新晃超大型重晶石矿床为例[M].北京:科学出版社,2012:37-117.
[18]侯东壮,吴湘滨,李贞,等.贵州省天柱大河边重晶石矿床成矿物质来源[J].中国有色金属学报,2015,25(4):1039-1048.
[19]高军波,杨瑞东,陶平,等.贵州镇宁泥盆系大型重晶石矿床地球化学特征及其成因研究[J].现代地质,2013,27(1):46-55.
[20]EDMOND J M,DAMM K V. Hotspring at the sea floor[J].Science,1993(8):37-50.
[21]MURRAY R W. Chemical criteria to identify the depositional environment of chert:general principles and applications[J]. Sedimentary Geology,1994,90(4):213-232.
[22]SPRY P G. Geochemistry and Origin of Coticules(SpessartineQuartz Rocks)Associated with Metamorphose Massive Sulfide Deposits[M]. Utrecht:VSP Publishers,1990:49-75.
[23]ADACHI M,YAMAMOTO K,SUGISAKI R. Hydrothermal chert and associated siliceous rocks from the northern Pacific:their geological significance as indication of ocean ridge activity[J]. Sedimentary Geology,1986,47(1):125-148.
[24]BOSTROM K. Genesis of Ferromanganese Deposits—Diagnostic Criteria for Recent and Old Deposits[M]. New York:Plenum Press,1983:473-489.
[25]常华进,储雪蕾,冯连君,等.湖南安化留茶坡硅质岩的REE地球化学特征及其意义[J].中国地质,2008,35(5):879-887.
[26]孙泽航,胡凯,韩善楚,等.湘黔新晃—天柱重晶石矿床微量稀土元素和硫同位素研究[J].高校地质学报,2015,21(4):701-710.
[27]杨海生,周永章,杨志军,等.热水沉积硅质岩地球化学特征及意义:以华南地区为例[J].中山大学学报(自然科学版),2003,42(6):111-115.
[28]石龙.北大巴山下寒武统重晶石—毒重石矿床形成条件与成矿过程分析[D].北京:中国地质大学(北京),2007:21-57.
[29]GIBBS A E,HEIN J R,LEWIS S D,et al. Hydrothermal palygorskite and ferromanganese mineralization at a central California margin fracture zone[J]. Marine Geology,1993,115(1):47-65.
[30]范喆.尕斯库勒湖泊钻孔记录的地球化学元素变化及古环境演化[D].兰州:兰州大学,2010:20-66.
[31]KIMURA H,WATANABE Y. Ocean anoxia at the PrecambrianCambrian boundary[J]. Geology,2001,29(11):995-998.
[32]LI G Z,HU B,DENG T L,et al. Petroleum geological significance of microelements V and Ni[J]. Natural Gas Geoscience,2008,19(1):13-17.
[33]加娜提古丽,周瑶琪,姚旭,等.安徽省巢湖地区二叠纪栖霞组、孤峰组硅质岩地球化学特征对比及大地构造背景分析[J].现代地质,2017,31(4):734-745.
[34]吕志成,刘丛强,刘家军,等.紫阳黄柏树湾和竹山文峪河毒重石矿床碳、氧及硼同位素研究[J].中国科学:地球科学,2003,33(3):223-235.
[35]张祥玉,李守军,赵秀丽,等. Ca/Mg比值对古环境的指示意义及其影响因素[J].山东科技大学学报(自然科学版),2017,36(3):9-16.
[36]MURRAY R W,JONES D L,BUCHHOLTZ T B M R. Diagenetic formation of bedded chert:Evidence from chemistry of the chert-shale couplet[J]. Geology,1992,20(3):271.
[37]SUGISAKI R,MIZUTANI S,HATTORI H,et al. Late Paleozoic geosynclinal basalt and tectonism in the Japanese Islands[J].Tectonophysics,1972,14(1):35-56.
[38]PETER J M. Mineralogy,composition,and fluid-inclusion microthermometry of seafloor hydrothermal deposits in the southern trough of Guaymas Basin, Gulf of California[J]. Canadian Mineralogist,1988,26(3):567-587.
[39]孟祥化.沉积建造及其共生矿床分析[M].北京:地质出版社,1979:135-170.
[40]邹灏,淡永,张寿庭,等.重庆东南部彭水地区重晶石—萤石矿床的成矿物质来源探讨:地球化学证据[J].大地构造与成矿学,2016,40(1):71-85.
[41]黄静,李琦,胡俊杰,等.羌塘角木日地区中二叠统龙格组泥岩地球化学特征及其地质意义[J].高校地质学报,2015,21(1):59-67.
[42]HARMAN C E,PAVLOV A A,BABIKOV D,et al. Chain formation as a mechanism for mass-independent fractionation of sulfur isotopes in the Archean atmosphere[J]. Earth and Planetary Science Letters,2018,496:238-247.
[43]FAKHRAEE M,CROWE S A,KATSEV S. Sedimentary sulfur isotopes and Neoarchean ocean oxygenation[J]. Science Advances,2018,4(1):1-5.
[2]詹柏松.福建李坊重晶石矿床地质特征及成矿条件探讨[J].福建地质,1985,4(1):17-36.
[3]陈先沛,高计元,曹俊臣.中国重晶石和萤石矿床[M]//《中国矿床》编委会.中国矿床.北京:地质出版社,1989:281-314.
[4]李春阳,田升平,牛桂芝.中国重晶石矿主要矿集区及其资源潜力探讨[J].化工矿产地质,2010,32(2):95-104.
[5]褚有龙.中国重晶石矿床的成因类型[J].矿床地质,1989,8(4):91-96.
[6]施满堂,陈文彬,林辉,等.李坊受变质沉积重晶石矿区(着重于Ⅳ矿段)构造分析[J].福建地质,1986,5(2):18-35.
[7]福建省地质调查研究院.中国区域地质志:福建志[M].北京:地质出版社,2016:1-976.
[8]李兼海.福建省岩石地层[M].武汉:中国地质大学出版社,1997:30-180.
[9]肖爱芳,黎敦朋.闽西南下古生界东坑口组与魏坊组地层层序与物源区特征[J].地质通报,2017,36(10):1750-1759.
[10]高军波,杨瑞东,陶平,等.贵州镇宁泥盆系大型重晶石矿床锶同位素组成特征研究[J].地球化学,2013(4):385-392.
[11]肖爱芳,王治淇,黎敦朋.闽西南新冲正长花岗岩LA-ICP-MS锆石U-Pb测年及其找矿意义[J].地球科学前沿,2017,7(3):349-355.
[12]褚杨,林伟,FAURE M,等.华南板块早中生代陆内造山过程——以雪峰山—九岭为例[J].岩石学报,2015,31(8):2145-2155.
[13]GROMET L P,HASKIN L A,KOROTEV R L,et al. The North American shale composite—its compilation,major and trace element characteristics[J]. Geochimica et Cosmochimica Acta,1985,48(12):2469-2482.
[14]CLAYTON R N. High temperature isotope effects in the early solar system[J]. Reviews in Mineralogy,1986,16:129-139.
[15]李凌霄,蔡金君,魏鑫,等.云南省西畴县马安山铅锌(重晶石)矿矿床特征及成因分析[J].世界有色金属,2018(1):35-43.
[16]朱正勇,黄景孟,鲁显松,等.竹山文峪河毒重石—重晶石矿床特征及成因分析[J].资源环境与工程,2017,31(S1):63-67.
[17]夏菲.华南下寒武统重晶石矿床的地球化学特征:以天柱大河边—新晃超大型重晶石矿床为例[M].北京:科学出版社,2012:37-117.
[18]侯东壮,吴湘滨,李贞,等.贵州省天柱大河边重晶石矿床成矿物质来源[J].中国有色金属学报,2015,25(4):1039-1048.
[19]高军波,杨瑞东,陶平,等.贵州镇宁泥盆系大型重晶石矿床地球化学特征及其成因研究[J].现代地质,2013,27(1):46-55.
[20]EDMOND J M,DAMM K V. Hotspring at the sea floor[J].Science,1993(8):37-50.
[21]MURRAY R W. Chemical criteria to identify the depositional environment of chert:general principles and applications[J]. Sedimentary Geology,1994,90(4):213-232.
[22]SPRY P G. Geochemistry and Origin of Coticules(SpessartineQuartz Rocks)Associated with Metamorphose Massive Sulfide Deposits[M]. Utrecht:VSP Publishers,1990:49-75.
[23]ADACHI M,YAMAMOTO K,SUGISAKI R. Hydrothermal chert and associated siliceous rocks from the northern Pacific:their geological significance as indication of ocean ridge activity[J]. Sedimentary Geology,1986,47(1):125-148.
[24]BOSTROM K. Genesis of Ferromanganese Deposits—Diagnostic Criteria for Recent and Old Deposits[M]. New York:Plenum Press,1983:473-489.
[25]常华进,储雪蕾,冯连君,等.湖南安化留茶坡硅质岩的REE地球化学特征及其意义[J].中国地质,2008,35(5):879-887.
[26]孙泽航,胡凯,韩善楚,等.湘黔新晃—天柱重晶石矿床微量稀土元素和硫同位素研究[J].高校地质学报,2015,21(4):701-710.
[27]杨海生,周永章,杨志军,等.热水沉积硅质岩地球化学特征及意义:以华南地区为例[J].中山大学学报(自然科学版),2003,42(6):111-115.
[28]石龙.北大巴山下寒武统重晶石—毒重石矿床形成条件与成矿过程分析[D].北京:中国地质大学(北京),2007:21-57.
[29]GIBBS A E,HEIN J R,LEWIS S D,et al. Hydrothermal palygorskite and ferromanganese mineralization at a central California margin fracture zone[J]. Marine Geology,1993,115(1):47-65.
[30]范喆.尕斯库勒湖泊钻孔记录的地球化学元素变化及古环境演化[D].兰州:兰州大学,2010:20-66.
[31]KIMURA H,WATANABE Y. Ocean anoxia at the PrecambrianCambrian boundary[J]. Geology,2001,29(11):995-998.
[32]LI G Z,HU B,DENG T L,et al. Petroleum geological significance of microelements V and Ni[J]. Natural Gas Geoscience,2008,19(1):13-17.
[33]加娜提古丽,周瑶琪,姚旭,等.安徽省巢湖地区二叠纪栖霞组、孤峰组硅质岩地球化学特征对比及大地构造背景分析[J].现代地质,2017,31(4):734-745.
[34]吕志成,刘丛强,刘家军,等.紫阳黄柏树湾和竹山文峪河毒重石矿床碳、氧及硼同位素研究[J].中国科学:地球科学,2003,33(3):223-235.
[35]张祥玉,李守军,赵秀丽,等. Ca/Mg比值对古环境的指示意义及其影响因素[J].山东科技大学学报(自然科学版),2017,36(3):9-16.
[36]MURRAY R W,JONES D L,BUCHHOLTZ T B M R. Diagenetic formation of bedded chert:Evidence from chemistry of the chert-shale couplet[J]. Geology,1992,20(3):271.
[37]SUGISAKI R,MIZUTANI S,HATTORI H,et al. Late Paleozoic geosynclinal basalt and tectonism in the Japanese Islands[J].Tectonophysics,1972,14(1):35-56.
[38]PETER J M. Mineralogy,composition,and fluid-inclusion microthermometry of seafloor hydrothermal deposits in the southern trough of Guaymas Basin, Gulf of California[J]. Canadian Mineralogist,1988,26(3):567-587.
[39]孟祥化.沉积建造及其共生矿床分析[M].北京:地质出版社,1979:135-170.
[40]邹灏,淡永,张寿庭,等.重庆东南部彭水地区重晶石—萤石矿床的成矿物质来源探讨:地球化学证据[J].大地构造与成矿学,2016,40(1):71-85.
[41]黄静,李琦,胡俊杰,等.羌塘角木日地区中二叠统龙格组泥岩地球化学特征及其地质意义[J].高校地质学报,2015,21(1):59-67.
[42]HARMAN C E,PAVLOV A A,BABIKOV D,et al. Chain formation as a mechanism for mass-independent fractionation of sulfur isotopes in the Archean atmosphere[J]. Earth and Planetary Science Letters,2018,496:238-247.
[43]FAKHRAEE M,CROWE S A,KATSEV S. Sedimentary sulfur isotopes and Neoarchean ocean oxygenation[J]. Science Advances,2018,4(1):1-5.
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