山东范家庄金矿床S、Pb同位素组成及对成矿物质来源的示踪
|
摘要
范家庄金矿床是胶东地区牟乳金成矿带新近发现的一个金矿床。通过S、Pb同位素的对比与分析,对范家庄金矿床的成矿物质来源进行了探讨和研究。研究结果表明,范家庄金矿床矿石硫化物δ~(34)S值总体为9.8‰～12.3‰,极差为2.5‰,平均值10.9‰,具有岩浆热液硫的特征,且与其伴生的中基性脉岩相近,说明范家庄金矿床的矿石硫主要来自于岩浆热液,并与其伴生的中基性脉岩具有相应的继承性。硫化物矿石铅~(206)Pb/~(204)Pb=17.110～17.600,~(207)Pb/~(204)Pb=15.444～15.532,~(208)Pb/~(204)Pb=37.578～37.986,将数据投影到铅构造模式图上,成分点均落在地幔铅与造山带铅平均演化带之间,显示范家庄金矿床铅具有壳幔混合来源特征。硫、铅同位素反映范家庄金矿床的成矿物质来源于地壳和地幔的混合,且以地幔物质为主。
The Fanjiazhuang gold deposit is a newly discovered gold deposit in the gold ore-forming belt of Muping-Rushan of Jiaodong area. This article discusses and researches the material source of Fanjiazhuang gold deposit by contrasting and studying sulfur and lead isotopes. This study suggests that the mineral sulfur of Fanjiazhuang gold deposit mainly comes from magmatic hydrothermal fluid, and the middle-base vein rocks have corresponding inheritance, for the sulfide δ~(34)S of deposit in Fanjiazhuang is characterized by magmatic hydrothermal sulfur, and is closed to the intermediate-base vein rocks where it is found in. The sulfide ore ~(206)Pb/~(204)Pb, ~(207)Pb/~(204)Pb, and ~(208)Pb/~(204)Pb ratios in the Fanjiazhuang gold deposit are 17.110-17.600, 15.444-15.532 and 37.578-37.986, respectively. This shows that the lead isotope in Fanjiazhuang has the characteristics of mixed mantle-and crust-derived sources.The sulfur and lead isotopes reflect that the ore-forming materials of Fanjiazhuang gold deposit are from the mixing of the mantleand crust-derived sources, dominated by the mantle.
The Fanjiazhuang gold deposit is a newly discovered gold deposit in the gold ore-forming belt of Muping-Rushan of Jiaodong area. This article discusses and researches the material source of Fanjiazhuang gold deposit by contrasting and studying sulfur and lead isotopes. This study suggests that the mineral sulfur of Fanjiazhuang gold deposit mainly comes from magmatic hydrothermal fluid, and the middle-base vein rocks have corresponding inheritance, for the sulfide δ~(34)S of deposit in Fanjiazhuang is characterized by magmatic hydrothermal sulfur, and is closed to the intermediate-base vein rocks where it is found in. The sulfide ore ~(206)Pb/~(204)Pb, ~(207)Pb/~(204)Pb, and ~(208)Pb/~(204)Pb ratios in the Fanjiazhuang gold deposit are 17.110-17.600, 15.444-15.532 and 37.578-37.986, respectively. This shows that the lead isotope in Fanjiazhuang has the characteristics of mixed mantle-and crust-derived sources.The sulfur and lead isotopes reflect that the ore-forming materials of Fanjiazhuang gold deposit are from the mixing of the mantleand crust-derived sources, dominated by the mantle.
引文
[1] 陈衍景,赖勇,李超,等.胶东矿集区大规模成矿时间和构造环境[J].岩石学报,2004,20(4):907-922.
[2] 朱日祥,范宏瑞,李建威,等.克拉通破坏型金矿床[J].中国科学:地球科学,2015,45(8):1153-1168.
[3] 丁正江,孙丰月,李国华,等.胶东邢家山地区燕山早期钼钨成矿母岩锆石U-Pb年龄及其意义[J].中国地质,2015,42(2):556-569.
[4] 蒋少涌,戴宝章,姜耀辉,等.胶东和小秦岭:两类不同构造环境中的造山型金矿省[J].岩石学报,2009,25(11):2727-2738.
[5] 李士先,刘长春,安郁宏,等.胶东金矿地质[M].北京:地质出版社,2007.
[6] 吕古贤,武际春,崔书学,等.胶东玲珑金矿田地质[M].北京:科学出版社,2013.
[7] 杨敏之,李治平.胶东东部金青顶金矿床围岩蚀变岩带的地球化学、形成机理及找矿方向的研究[J].地质找矿论丛,1989,4(2):1-17.
[8] 李治平.胶东乳山金矿床成因[J].矿床地质,1992,11(2):165-178.
[9] 高太忠,赵伦山,杨敏之.山东牟乳金矿带成矿演化机理探讨[J].大地构造与成矿学,2001,25(2):155-161.
[10] 张德全,徐洪林,孙桂英.山东牟平邓格庄金矿的地球化学特征及成因[J].矿床地质,1997,16(3):204-214.
[11] 应汉龙.胶东金青顶、邓格庄金矿床含金石英的40Ar/39Ar快中子活化年龄[J].黄金科学技术,1994,2(4):24-28.
[12] 薛建玲,李胜荣,孙文燕,等.胶东邓格庄金矿床流体包裹体氦、氩同位素组成及其成矿物质来源示踪[J].吉林大学学报:地球科学版,2013,43(2):400-414.
[13] 邵伟,陈光远,孙岱生.黄铁矿热电性研究方法及其在胶东金矿的应用[J].现代地质,1990,4(1):46-57.
[14] 范永香.关于我国金矿成因类型划分的几个问题[J].地质科技情报,1982,1(3):99-102.
[15] Ma L,Jiang S Y,Hofmann A W,et al.Lithospheric and asthenospheric sources of lamprophyres in the Jiaodong Peninsula:A consequence of rapid lithospheric thinning beneath the North China Craton?[J].Geochimica et Cosmochimica Acta,2014,124(1):250-271.
[16] Liu S,Hu R Z,Gao S,et al.Petrogenesis of Late Mesozoic mafic dykes in the Jiaodong Peninsula,eastern North China Craton and implications for the foundering of lower crust[J].Lithos,2009,113(3/4):621-639.
[17] Cai Y C,Fan H R,Santosh M,et al.Evolution of the lithospheric mantle beneath the southeastern North China Craton:Constraints from mafic dikes in the Jiaobei terrain[J].Gondwana Research,2013,24(2):601-621.
[18] Sun J,Shouxi H U,Liu J,et al.A study of Sr,Nd and O isotopes of the K-rich Melanocratic Dykes in the Late Mesozoic Gold Field in the Jiaodong Peninsula[J].Geoscience Canada,2001,75(4):432-444.
[19] Guo F,Fan W,Wang Y,et al.Origin of Early Cretaceous calc-alkaline lamprophyres from the Sulu Orogen in eastern China:Implications for enrichment processes beneath continental collisional belt[J].Lithos,2004,78(3):291-305.
[20] Liu S,Hu R Z,Zhao J H.K-Ar geochronology of Mesozoic mafic dikes in Shandong Province,eastern China:Implications for Crustal Extension[J].Acta Geologic Sinica,2004,78(6):1207-1213.
[21] 张兆宇.山东中基性脉岩特征及其与金矿化的关系[D].北京:中国地质大学(北京),2015.
[22] 梁亚运,刘学飞,李龚健,等.胶东地区脉岩成因与金成矿关系的研究:年代学及Sr-Nd-Pb同位素的约束[J].地质科技情报,2014,33(3):10-24.
[23] 黄德业.胶东金矿成矿系列硫同位素研究[J].矿床地质,1994,13(1):75-87.
[24] 杨忠芳,徐景奎,赵伦山,等.胶东区域地壳演化与金成矿作用地球化学[M].北京:地质出版社,1998:1-125.
[25] Tan J,Wei J H,Li Y J,et al.Origin and geodynamic significance of fault-hosted massive sulfide gold deposits from the Guocheng-Liaoshang metallogenic belt,eastern Jiaodong Peninsula:Rb-Sr dating,and H-O-S-Pb isotopic constraints[J].Ore Geology Reviews,2015,65:687-700.
[26] Mao J,Wang Y,Li H,et al.The relationship of mantle-derived fluids to gold metallogenesis in the Jiaodong Peninsula:Evidence from D-O-C-S isotope systematics[J].Ore Geology Reviews,2008,33(3):361-381.
[27] 蔡亚春,范宏瑞,胡芳芳,等.胶东胡八庄金矿成矿流体、稳定同位素及成矿时代研究[J].岩石学报,2011,27(5):1341-1351.
[28] 侯明兰,蒋少涌,姜耀辉,等.胶东蓬莱金成矿区的S-Pb同位素地球化学和Rb-Sr同位素年代学研究[J].岩石学报,2006,22(10):2525-2533.
[29] 张连昌,沈远超,曾庆栋,等.山东中生代胶莱盆地北缘金矿床硫铅同位素地球化学[J].矿物岩石地球化学通报,2001,20(4):380-384.
[30] 张连昌,沈远超,刘铁兵,等.山东蓬家夼金矿硫铅碳氧同位素地球化学[J].矿物学报,2002,22(3):255-261.
[31] 张连昌,沈远超,刘铁兵,等.山东胶莱盆地北缘金矿Ar-Ar法和Rb-Sr等时线年龄与成矿时代[J].中国科学:地球科学,2002,32(9):727-734.
[32] 杨进辉,周新华,陈立辉.胶东地区破碎带蚀变岩型金矿时代的测定及其地质意义[J].岩石学报,2000,16(3):454-458.
[33] Yang J H,Chung S L,Zhai M G,et al.Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula,China:Evidence for vein-plus-peridotite melting in the lithospheric mantle[J].Lithos,2004,73(3/4):145-160.
[34] 陈振胜,张理刚,刘敬秀,等.胶东区域岩石铅同位素地球化学背景研究[J].地质找矿论丛,1994,9(1):65-78.
[35] 徐金方,沈步云,牛良柱,等.胶北地块与金矿有关的花岗岩类的研究[J].山东国土资源,1989,5(2):1-125.
[36] 王义文.胶东西北部地区金矿床铅同位素特征及其地质意义[J].长春地质学院学报,1988,13(3):277-286.
[37] 马振东.中朝准地台原生金矿铅同位素特征及有关问题的讨论[J].地球科学:中国地质大学学报,1988,13(4):395-402.
[38] 李兆龙,张连营,肖秀梅,等.胶东马家窑金矿地质地球化学特征及矿床成因[J].地质找矿论丛,1990,5(3):36-48.
[39] 李兆龙,杨敏之.胶东金矿床地质地球化学[M].天津:天津科学技术出版社,1993.
[40] Zartman R E,Doe B R.Plumbotectonics:The model[J].Tectonophysics,1981,75(1):135-162.
[41] 崔举超.胶东牟-乳金成矿带成因矿物学研究及其找矿意义[D].北京:中国地质大学(北京),2012.
[42] 李胜荣,陈光远,邵伟,等.胶东乳山金矿田成因矿物学[M].北京:地质出版社,1996.
[43] 李旭芬.胶东牟平-乳山金矿带金青顶金矿矿床成因与找矿方向研究[D].西安:长安大学,2011.
[44] 陈扬.山东牟平宋家沟金矿床地质特征及成因研究[D].长春:吉林大学,2015.
[2] 朱日祥,范宏瑞,李建威,等.克拉通破坏型金矿床[J].中国科学:地球科学,2015,45(8):1153-1168.
[3] 丁正江,孙丰月,李国华,等.胶东邢家山地区燕山早期钼钨成矿母岩锆石U-Pb年龄及其意义[J].中国地质,2015,42(2):556-569.
[4] 蒋少涌,戴宝章,姜耀辉,等.胶东和小秦岭:两类不同构造环境中的造山型金矿省[J].岩石学报,2009,25(11):2727-2738.
[5] 李士先,刘长春,安郁宏,等.胶东金矿地质[M].北京:地质出版社,2007.
[6] 吕古贤,武际春,崔书学,等.胶东玲珑金矿田地质[M].北京:科学出版社,2013.
[7] 杨敏之,李治平.胶东东部金青顶金矿床围岩蚀变岩带的地球化学、形成机理及找矿方向的研究[J].地质找矿论丛,1989,4(2):1-17.
[8] 李治平.胶东乳山金矿床成因[J].矿床地质,1992,11(2):165-178.
[9] 高太忠,赵伦山,杨敏之.山东牟乳金矿带成矿演化机理探讨[J].大地构造与成矿学,2001,25(2):155-161.
[10] 张德全,徐洪林,孙桂英.山东牟平邓格庄金矿的地球化学特征及成因[J].矿床地质,1997,16(3):204-214.
[11] 应汉龙.胶东金青顶、邓格庄金矿床含金石英的40Ar/39Ar快中子活化年龄[J].黄金科学技术,1994,2(4):24-28.
[12] 薛建玲,李胜荣,孙文燕,等.胶东邓格庄金矿床流体包裹体氦、氩同位素组成及其成矿物质来源示踪[J].吉林大学学报:地球科学版,2013,43(2):400-414.
[13] 邵伟,陈光远,孙岱生.黄铁矿热电性研究方法及其在胶东金矿的应用[J].现代地质,1990,4(1):46-57.
[14] 范永香.关于我国金矿成因类型划分的几个问题[J].地质科技情报,1982,1(3):99-102.
[15] Ma L,Jiang S Y,Hofmann A W,et al.Lithospheric and asthenospheric sources of lamprophyres in the Jiaodong Peninsula:A consequence of rapid lithospheric thinning beneath the North China Craton?[J].Geochimica et Cosmochimica Acta,2014,124(1):250-271.
[16] Liu S,Hu R Z,Gao S,et al.Petrogenesis of Late Mesozoic mafic dykes in the Jiaodong Peninsula,eastern North China Craton and implications for the foundering of lower crust[J].Lithos,2009,113(3/4):621-639.
[17] Cai Y C,Fan H R,Santosh M,et al.Evolution of the lithospheric mantle beneath the southeastern North China Craton:Constraints from mafic dikes in the Jiaobei terrain[J].Gondwana Research,2013,24(2):601-621.
[18] Sun J,Shouxi H U,Liu J,et al.A study of Sr,Nd and O isotopes of the K-rich Melanocratic Dykes in the Late Mesozoic Gold Field in the Jiaodong Peninsula[J].Geoscience Canada,2001,75(4):432-444.
[19] Guo F,Fan W,Wang Y,et al.Origin of Early Cretaceous calc-alkaline lamprophyres from the Sulu Orogen in eastern China:Implications for enrichment processes beneath continental collisional belt[J].Lithos,2004,78(3):291-305.
[20] Liu S,Hu R Z,Zhao J H.K-Ar geochronology of Mesozoic mafic dikes in Shandong Province,eastern China:Implications for Crustal Extension[J].Acta Geologic Sinica,2004,78(6):1207-1213.
[21] 张兆宇.山东中基性脉岩特征及其与金矿化的关系[D].北京:中国地质大学(北京),2015.
[22] 梁亚运,刘学飞,李龚健,等.胶东地区脉岩成因与金成矿关系的研究:年代学及Sr-Nd-Pb同位素的约束[J].地质科技情报,2014,33(3):10-24.
[23] 黄德业.胶东金矿成矿系列硫同位素研究[J].矿床地质,1994,13(1):75-87.
[24] 杨忠芳,徐景奎,赵伦山,等.胶东区域地壳演化与金成矿作用地球化学[M].北京:地质出版社,1998:1-125.
[25] Tan J,Wei J H,Li Y J,et al.Origin and geodynamic significance of fault-hosted massive sulfide gold deposits from the Guocheng-Liaoshang metallogenic belt,eastern Jiaodong Peninsula:Rb-Sr dating,and H-O-S-Pb isotopic constraints[J].Ore Geology Reviews,2015,65:687-700.
[26] Mao J,Wang Y,Li H,et al.The relationship of mantle-derived fluids to gold metallogenesis in the Jiaodong Peninsula:Evidence from D-O-C-S isotope systematics[J].Ore Geology Reviews,2008,33(3):361-381.
[27] 蔡亚春,范宏瑞,胡芳芳,等.胶东胡八庄金矿成矿流体、稳定同位素及成矿时代研究[J].岩石学报,2011,27(5):1341-1351.
[28] 侯明兰,蒋少涌,姜耀辉,等.胶东蓬莱金成矿区的S-Pb同位素地球化学和Rb-Sr同位素年代学研究[J].岩石学报,2006,22(10):2525-2533.
[29] 张连昌,沈远超,曾庆栋,等.山东中生代胶莱盆地北缘金矿床硫铅同位素地球化学[J].矿物岩石地球化学通报,2001,20(4):380-384.
[30] 张连昌,沈远超,刘铁兵,等.山东蓬家夼金矿硫铅碳氧同位素地球化学[J].矿物学报,2002,22(3):255-261.
[31] 张连昌,沈远超,刘铁兵,等.山东胶莱盆地北缘金矿Ar-Ar法和Rb-Sr等时线年龄与成矿时代[J].中国科学:地球科学,2002,32(9):727-734.
[32] 杨进辉,周新华,陈立辉.胶东地区破碎带蚀变岩型金矿时代的测定及其地质意义[J].岩石学报,2000,16(3):454-458.
[33] Yang J H,Chung S L,Zhai M G,et al.Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula,China:Evidence for vein-plus-peridotite melting in the lithospheric mantle[J].Lithos,2004,73(3/4):145-160.
[34] 陈振胜,张理刚,刘敬秀,等.胶东区域岩石铅同位素地球化学背景研究[J].地质找矿论丛,1994,9(1):65-78.
[35] 徐金方,沈步云,牛良柱,等.胶北地块与金矿有关的花岗岩类的研究[J].山东国土资源,1989,5(2):1-125.
[36] 王义文.胶东西北部地区金矿床铅同位素特征及其地质意义[J].长春地质学院学报,1988,13(3):277-286.
[37] 马振东.中朝准地台原生金矿铅同位素特征及有关问题的讨论[J].地球科学:中国地质大学学报,1988,13(4):395-402.
[38] 李兆龙,张连营,肖秀梅,等.胶东马家窑金矿地质地球化学特征及矿床成因[J].地质找矿论丛,1990,5(3):36-48.
[39] 李兆龙,杨敏之.胶东金矿床地质地球化学[M].天津:天津科学技术出版社,1993.
[40] Zartman R E,Doe B R.Plumbotectonics:The model[J].Tectonophysics,1981,75(1):135-162.
[41] 崔举超.胶东牟-乳金成矿带成因矿物学研究及其找矿意义[D].北京:中国地质大学(北京),2012.
[42] 李胜荣,陈光远,邵伟,等.胶东乳山金矿田成因矿物学[M].北京:地质出版社,1996.
[43] 李旭芬.胶东牟平-乳山金矿带金青顶金矿矿床成因与找矿方向研究[D].西安:长安大学,2011.
[44] 陈扬.山东牟平宋家沟金矿床地质特征及成因研究[D].长春:吉林大学,2015.