贵州铜仁地区九门冲组黑色页岩地球化学特征及成岩环境研究
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摘要
贵州铜仁地区九门冲组黑色页岩富含钒、镍和铀等金属元素,也是一套优质烃源岩。为了解黑色页岩的沉积环境和成因,对其进行地球化学特征研究。结果表明:Zn、Cu、Cr、Ni、U元素富集,稀土总量较高,轻稀土富集。Ce负异常、V/Cr和V/(V+Ni)表明黑色页岩形成于静水还原的斜坡环境,Co/Zn值、Zn-Ni-Co三元图、(La/Sm)N> 1、δEu正异常、La/Yb-REE图解、La-Ce关系图解和北美页岩组合样标准化曲线略左倾等反映黑色页岩沉积过程受到热液活动的影响,海底热液提供了丰富的物质来源。根据K2O/Na2O-Si O2判别图、稀土元素组合及比值等特征,反映区内构造背景以被动大陆边缘为主,由于受到热液活动的影响,也显示活动大陆边缘构造背景的特征。
The Jiumenchong Formation black shale in the Tongren area of Guizhong Province hosts metallic elements such as V,Ni and U,and is alsoa set of high-quality source rocks. This work conducted geochemical research to reveal its geochemistry characteristics and diagenetic setting. The result shows that this rock is characterized by enriched Zn,Cu,Cr,Ni and U,high rare earth elements content,and relatively high content of LREE. Ce negative anomalies,V/Cr and V/( V + Ni) suggest that it was formed in a static reducing slope environment. Co/Zn values,Zn-Ni-Co ternary diagram,( La/Sm)N,positive anomalies of δEu,La/Yb-REE illustrations,discrimination diagrams of La/Ce,and the standardized curve of North American shale combination patterns demonstrate that this black shale has been influenced by hydrothermal activity during its disposition,and its abundant sources were from oceanic hydrothermal fluid. Discrimination diagrams of K_2O/Na_2O-SiO_2 and REE parameters indicate that the research area was in a tectonic setting dominated by a passive continental margin,while the effect of hydrothermal activity also implies a feature of an active continental margin.
The Jiumenchong Formation black shale in the Tongren area of Guizhong Province hosts metallic elements such as V,Ni and U,and is alsoa set of high-quality source rocks. This work conducted geochemical research to reveal its geochemistry characteristics and diagenetic setting. The result shows that this rock is characterized by enriched Zn,Cu,Cr,Ni and U,high rare earth elements content,and relatively high content of LREE. Ce negative anomalies,V/Cr and V/( V + Ni) suggest that it was formed in a static reducing slope environment. Co/Zn values,Zn-Ni-Co ternary diagram,( La/Sm)N,positive anomalies of δEu,La/Yb-REE illustrations,discrimination diagrams of La/Ce,and the standardized curve of North American shale combination patterns demonstrate that this black shale has been influenced by hydrothermal activity during its disposition,and its abundant sources were from oceanic hydrothermal fluid. Discrimination diagrams of K_2O/Na_2O-SiO_2 and REE parameters indicate that the research area was in a tectonic setting dominated by a passive continental margin,while the effect of hydrothermal activity also implies a feature of an active continental margin.
引文
Berry N,Wilde P.1978.Progressive ventilation of the oceans:An explanation for the distribution of the Lower Paleozoic black shales[J].American Journal of Science,287:257-275.
Chen Deqian,Chen Gang.1996.Practical rare earth elements geochemistry[M].Beijing:Metallurgical Industry Publishing House:68-95(in Chinese).
Cronan D S.Underwater minerals[M].1980.London:Academic Press:80-120.
Feng Caixia,Liu Shen,Hu Ruizhong,Liu Jiajun,Luo Taiyi,Chi Guoxiang,Qi Youqiang.2010.Geochemistry of Lower Cambrian Se rich black rock series in Zunyi,Guizhou Province,southwest China:The petrogenesis and enrichment mechanism of selenium[J].Earth Science-Journal of China University of Geosciences,35(6):947-959(in Chinese with English abstract).
He Shuxing,Yang Xinglian,Wu Weiyi,Zhu Yajie,Duan Xiaolin.2016.A preliminary study of microscopic skeletal fossils from the Cambrian Jiumenchong Formation in southeastern Guizhou,China[J].Acta Palaeontologica Sinica,55(2):160-169(in Chinese with English abstract).
He Shuxing.2016.The study on Jiumengchong Formation of Cambrian in Guizhou[D].Guiyang:Guizhou University:12-60(in Chinese with English abstract).
Hou Junfu.2008.Metallogenetic characteristics and regularities of AuV mineralization in Lower Cambrian black rock series,southern Qinling Moutain[D].Xi’an:Northwest University:56-95(in Chinese with English abstract).
Jones B,Manning C.1994,Comparison of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones[J].Chemical Geology,111(1/4):111-129.
Li Youyu,Chen Shuzhen.1993.Petrochemical and geochemical features of the Jiumenchong formation of Lower Cambrian system in Bahuang,Tongren[J].Geology of Guizhou,10(2):163-170(in Chinese).
Ma Lifang.2002.Geology atlas of China[M].Beijing:Geological Publishing House:141-143(in Chinese).
Morad S,Felitsyn S.2001.Identification of primary Ce-anomaly signatures in fossil biogenic apatite:Implication for the Cambrian oceanic anoxia and phosphogenesis[J].Sedimentary Geology,143:259-264.
Roser B,Korsch R.1988.Provenance signatures of sandstone-mudstone suites determined using discriminant function analysis of majorelement data[J].Chemical Geology,67(1-2):119-139.
Shields G,Stille P.2001.Diagenetic constraints on the use of Cerium anomalies as palaeoseawater redox proxies:An isotopic and REE study of Cambrian phosphorites[J].Cheimical Geology,175:29-48.
Shu Duoyou,Wu Zicheng,Zhang Mingqiao,Ye Fei,Peng Jiaqiang.2012.REE geochemical characteristics of vanadium ores and wall rocks in northeastern Guizhou and their geological significance[J].Geology and Exploration,48(6):1118-1128(in Chinese with English abstract).
Toth J R.1980.Deposition of submarine crusts rich in manganese and I-ron[J].Geological Society of America Bulletin,91:44-54.
Tribovillard N,Algeo T J,Lyons T,Riboulleau A.2006.Trace metals as paleoredox and paleoproductivity proxies:An update[J].Chemical Geology,232(1):12-32.
Wang Hao,Ling Wenli,Duan Ruichun,Yang Hongmei,Yang Ziwan,Qin Yadong.2012.Os isotopic geochemistry of Neoproterozic Cambrian black shales in eastern Three Gorges of Yangtze craton and its geological significance[J].Earth Science-Journal of China University of Geosciences,37(3):451-462(in Chinese with English abstract).
Wang Jujie,Zeng Pusheng,Ma Jing,Dai Yanjuan,Gou Ruitao.2015.Black rock series and associated minerals:An example of the Yangtze platform[J].Geology and Exploration,51(4):677-689(in Chinese with English abstract).
Wang Libo,Jiu Kai,Zeng Weite,Zhao Jinglong,Zhao Song.2013.Characteristics of Lower Cambrian marine black shales and evaluation of shale gas prospective area in Qianbei area,upper Yangtze region[J].Acta Petrologica Sinica,29(9):3263-3278(in Chinese with English abstract).
Wei Huairui,Yang Ruidong,Gao Junbo,Wang wei.2012.Primary study on the sediment structures in black-shale-series deposits of the Basal Cambrian,Guizhou Province[J].Geoscience,26(4):673-681.(in Chinese with English abstract).
Wingnall B.1994.Black shales[M].Oxford:Clarendon Press:120-152.
Yan Deyu,Huang Wenhui,Wang Tinghao,Liu Bei.2016.Trace element characteristics of the Lower Cambrian black shales in middle and lower Yangtze area,China[J].Earth Science Frontiers,23(3):42-50(in Chinese with English abstract).
Yang Ruidong,Zhu Lijun,Gao Hui,Zhang Weihua,Jiang Lijun,Wang Qiang,Bao Miao.2005.A study on characteristics of the hydrothermal vent and relating biota at the Cambrian bottom in Songlin,Zunyi County,Guizhou Province[J].Geological Review,51(5):481-493(in Chinese with English abstract).
Yang Shengtang,Liu Kai,Yin Yanlong,Zhao Shuang.2016.Research on sedimentary settings of Wenghui vanadium ore deposit in Guizhou[J].Resource Information and Engineering,36(6):40-41(in Chinese).
Zhang Qinghua,Zhang Lunwen,Bao Miao.2012.Pb isotopic constraints on the source of ore-forming materials of polymetallic layer of black rock series,Guizhou[J].Mineral Resources and Geology,26(2):144-147(in Chinese with English abstract).
Zhao Zhenhua.1993.Geochemistry control factors of Eu[J].Journal of Nanjing University(Earth Science Edition),5(2):271(in Chinese with English abstract).
Zhou Wenxi.2018.Sedimentary environment and geochemical characteristics of the Lower Cambrian black rock series in northern Guizhou[D].Guiyang:Guizhou University:12-62(in Chinese with English abstract).
Zhu Xiaoqing,Wang Zhonggang.1994.Geochemical characteristics of sediment at Hot Water region in the Okinawa Trough[A].Hu Ruizhong.Study on geochemistry[C].Beijng:Earthquake Publishing House:108-112(in Chinese with English abstract).
陈德潜,陈刚.1996.实用稀土元素地球化学[M].北京:冶金工业出版社:68-95.
冯彩霞,刘",胡瑞忠,刘家军,罗泰义,池国祥,齐有强.2010.遵义下寒武统富硒黑色岩系地球化学:成因和硒富集机理[J].地球科学-中国地质大学学报,35(6):947-959.
何树兴,杨兴莲,吴维义,朱雅杰,段晓林.2016.贵州麻江羊跳寒武系九门冲组微体化石初探[J].古生物学报,55(2):160-169.
何树兴.2016.贵州寒武系九门冲组地层研究[D].贵阳:贵州大学:12-60.
侯俊富.2008.南秦岭下寒武统黑色岩系中金-钒成矿特征及成矿规律[D].西安:西北大学:56-95.
李有禹,陈淑珍.1993.铜仁坝黄下寒武统九门冲组的岩石化学和地球化学特征[J].贵州地质,10(2):163-170.
马丽芳.2002.中国地质图集[M].北京:地质出版社:285-291.
舒多友,吴自成,张命桥,叶飞,彭加强.2012.黔东北地区钒矿石与围岩稀土元素地球化学特征及其意义[J].地质与勘探,48(6):1118-1128.
王浩,凌文黎,段瑞春,杨红梅,陈子万,秦雅东.2012.扬子克拉通峡东地区新元古代-寒武纪黑色岩系Os同位素地球化学特征及其地质意义[J].地球科学-中国地质大学学报,37(3):451-462.
王聚杰,曾普胜,麻菁,代艳娟,苟瑞涛.2015.黑色岩系及相关矿产-以扬子地台为例[J].地质与勘探,51(4):677-689.
王丽波,久凯,曾维特,付景龙,赵松.2013.上扬子黔北地区下寒武统海相黑色泥页岩特征及页岩气远景区评价[J].岩石学报,29(9):3263-3278.
魏怀瑞,杨瑞东,高军波,王伟.2012.贵州寒武系底部黑色岩系型矿床沉积构造特征研究[J].现代地质,26(4):673-681.
闫德宇,黄文辉,王婷灏,刘贝.2016.中、下扬子地区下寒武统黑色页岩微量元素富集特征[J].地学前缘,23(3):42-50.
杨瑞东,朱立军,高慧,张位华,姜立君,王强,鲍淼.2005.贵州遵义松林寒武系底部热液喷口及与喷口相关生物群特征[J].地质论评,51(5):481-493.
杨胜堂,刘凯,尹延龙,赵爽.2016.贵州江口翁会钒矿床沉积环境研究[J].资源信息与工程,36(6):40-41.
张庆华,张伦尉,鲍淼.2012.贵州下寒武统黑色岩系多金属矿层成矿物质来源的铅同位素示踪[J].矿产与地质,26(2):144-147.
赵振华.1993.铕地球化学特征的控制因素[J].南京大学学报(地球科学版),5(2):271.
周文喜.2018.黔北地区下寒武统黑色岩系的沉积环境与地球化学研究[D].贵阳:贵州大学:12-62.
朱笑青,王中刚.1994.冲绳海槽热水区沉积物的地球化学特征[A].胡瑞忠.矿床地球化学研究[C].北京:地震出版社:108-112.
Chen Deqian,Chen Gang.1996.Practical rare earth elements geochemistry[M].Beijing:Metallurgical Industry Publishing House:68-95(in Chinese).
Cronan D S.Underwater minerals[M].1980.London:Academic Press:80-120.
Feng Caixia,Liu Shen,Hu Ruizhong,Liu Jiajun,Luo Taiyi,Chi Guoxiang,Qi Youqiang.2010.Geochemistry of Lower Cambrian Se rich black rock series in Zunyi,Guizhou Province,southwest China:The petrogenesis and enrichment mechanism of selenium[J].Earth Science-Journal of China University of Geosciences,35(6):947-959(in Chinese with English abstract).
He Shuxing,Yang Xinglian,Wu Weiyi,Zhu Yajie,Duan Xiaolin.2016.A preliminary study of microscopic skeletal fossils from the Cambrian Jiumenchong Formation in southeastern Guizhou,China[J].Acta Palaeontologica Sinica,55(2):160-169(in Chinese with English abstract).
He Shuxing.2016.The study on Jiumengchong Formation of Cambrian in Guizhou[D].Guiyang:Guizhou University:12-60(in Chinese with English abstract).
Hou Junfu.2008.Metallogenetic characteristics and regularities of AuV mineralization in Lower Cambrian black rock series,southern Qinling Moutain[D].Xi’an:Northwest University:56-95(in Chinese with English abstract).
Jones B,Manning C.1994,Comparison of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones[J].Chemical Geology,111(1/4):111-129.
Li Youyu,Chen Shuzhen.1993.Petrochemical and geochemical features of the Jiumenchong formation of Lower Cambrian system in Bahuang,Tongren[J].Geology of Guizhou,10(2):163-170(in Chinese).
Ma Lifang.2002.Geology atlas of China[M].Beijing:Geological Publishing House:141-143(in Chinese).
Morad S,Felitsyn S.2001.Identification of primary Ce-anomaly signatures in fossil biogenic apatite:Implication for the Cambrian oceanic anoxia and phosphogenesis[J].Sedimentary Geology,143:259-264.
Roser B,Korsch R.1988.Provenance signatures of sandstone-mudstone suites determined using discriminant function analysis of majorelement data[J].Chemical Geology,67(1-2):119-139.
Shields G,Stille P.2001.Diagenetic constraints on the use of Cerium anomalies as palaeoseawater redox proxies:An isotopic and REE study of Cambrian phosphorites[J].Cheimical Geology,175:29-48.
Shu Duoyou,Wu Zicheng,Zhang Mingqiao,Ye Fei,Peng Jiaqiang.2012.REE geochemical characteristics of vanadium ores and wall rocks in northeastern Guizhou and their geological significance[J].Geology and Exploration,48(6):1118-1128(in Chinese with English abstract).
Toth J R.1980.Deposition of submarine crusts rich in manganese and I-ron[J].Geological Society of America Bulletin,91:44-54.
Tribovillard N,Algeo T J,Lyons T,Riboulleau A.2006.Trace metals as paleoredox and paleoproductivity proxies:An update[J].Chemical Geology,232(1):12-32.
Wang Hao,Ling Wenli,Duan Ruichun,Yang Hongmei,Yang Ziwan,Qin Yadong.2012.Os isotopic geochemistry of Neoproterozic Cambrian black shales in eastern Three Gorges of Yangtze craton and its geological significance[J].Earth Science-Journal of China University of Geosciences,37(3):451-462(in Chinese with English abstract).
Wang Jujie,Zeng Pusheng,Ma Jing,Dai Yanjuan,Gou Ruitao.2015.Black rock series and associated minerals:An example of the Yangtze platform[J].Geology and Exploration,51(4):677-689(in Chinese with English abstract).
Wang Libo,Jiu Kai,Zeng Weite,Zhao Jinglong,Zhao Song.2013.Characteristics of Lower Cambrian marine black shales and evaluation of shale gas prospective area in Qianbei area,upper Yangtze region[J].Acta Petrologica Sinica,29(9):3263-3278(in Chinese with English abstract).
Wei Huairui,Yang Ruidong,Gao Junbo,Wang wei.2012.Primary study on the sediment structures in black-shale-series deposits of the Basal Cambrian,Guizhou Province[J].Geoscience,26(4):673-681.(in Chinese with English abstract).
Wingnall B.1994.Black shales[M].Oxford:Clarendon Press:120-152.
Yan Deyu,Huang Wenhui,Wang Tinghao,Liu Bei.2016.Trace element characteristics of the Lower Cambrian black shales in middle and lower Yangtze area,China[J].Earth Science Frontiers,23(3):42-50(in Chinese with English abstract).
Yang Ruidong,Zhu Lijun,Gao Hui,Zhang Weihua,Jiang Lijun,Wang Qiang,Bao Miao.2005.A study on characteristics of the hydrothermal vent and relating biota at the Cambrian bottom in Songlin,Zunyi County,Guizhou Province[J].Geological Review,51(5):481-493(in Chinese with English abstract).
Yang Shengtang,Liu Kai,Yin Yanlong,Zhao Shuang.2016.Research on sedimentary settings of Wenghui vanadium ore deposit in Guizhou[J].Resource Information and Engineering,36(6):40-41(in Chinese).
Zhang Qinghua,Zhang Lunwen,Bao Miao.2012.Pb isotopic constraints on the source of ore-forming materials of polymetallic layer of black rock series,Guizhou[J].Mineral Resources and Geology,26(2):144-147(in Chinese with English abstract).
Zhao Zhenhua.1993.Geochemistry control factors of Eu[J].Journal of Nanjing University(Earth Science Edition),5(2):271(in Chinese with English abstract).
Zhou Wenxi.2018.Sedimentary environment and geochemical characteristics of the Lower Cambrian black rock series in northern Guizhou[D].Guiyang:Guizhou University:12-62(in Chinese with English abstract).
Zhu Xiaoqing,Wang Zhonggang.1994.Geochemical characteristics of sediment at Hot Water region in the Okinawa Trough[A].Hu Ruizhong.Study on geochemistry[C].Beijng:Earthquake Publishing House:108-112(in Chinese with English abstract).
陈德潜,陈刚.1996.实用稀土元素地球化学[M].北京:冶金工业出版社:68-95.
冯彩霞,刘",胡瑞忠,刘家军,罗泰义,池国祥,齐有强.2010.遵义下寒武统富硒黑色岩系地球化学:成因和硒富集机理[J].地球科学-中国地质大学学报,35(6):947-959.
何树兴,杨兴莲,吴维义,朱雅杰,段晓林.2016.贵州麻江羊跳寒武系九门冲组微体化石初探[J].古生物学报,55(2):160-169.
何树兴.2016.贵州寒武系九门冲组地层研究[D].贵阳:贵州大学:12-60.
侯俊富.2008.南秦岭下寒武统黑色岩系中金-钒成矿特征及成矿规律[D].西安:西北大学:56-95.
李有禹,陈淑珍.1993.铜仁坝黄下寒武统九门冲组的岩石化学和地球化学特征[J].贵州地质,10(2):163-170.
马丽芳.2002.中国地质图集[M].北京:地质出版社:285-291.
舒多友,吴自成,张命桥,叶飞,彭加强.2012.黔东北地区钒矿石与围岩稀土元素地球化学特征及其意义[J].地质与勘探,48(6):1118-1128.
王浩,凌文黎,段瑞春,杨红梅,陈子万,秦雅东.2012.扬子克拉通峡东地区新元古代-寒武纪黑色岩系Os同位素地球化学特征及其地质意义[J].地球科学-中国地质大学学报,37(3):451-462.
王聚杰,曾普胜,麻菁,代艳娟,苟瑞涛.2015.黑色岩系及相关矿产-以扬子地台为例[J].地质与勘探,51(4):677-689.
王丽波,久凯,曾维特,付景龙,赵松.2013.上扬子黔北地区下寒武统海相黑色泥页岩特征及页岩气远景区评价[J].岩石学报,29(9):3263-3278.
魏怀瑞,杨瑞东,高军波,王伟.2012.贵州寒武系底部黑色岩系型矿床沉积构造特征研究[J].现代地质,26(4):673-681.
闫德宇,黄文辉,王婷灏,刘贝.2016.中、下扬子地区下寒武统黑色页岩微量元素富集特征[J].地学前缘,23(3):42-50.
杨瑞东,朱立军,高慧,张位华,姜立君,王强,鲍淼.2005.贵州遵义松林寒武系底部热液喷口及与喷口相关生物群特征[J].地质论评,51(5):481-493.
杨胜堂,刘凯,尹延龙,赵爽.2016.贵州江口翁会钒矿床沉积环境研究[J].资源信息与工程,36(6):40-41.
张庆华,张伦尉,鲍淼.2012.贵州下寒武统黑色岩系多金属矿层成矿物质来源的铅同位素示踪[J].矿产与地质,26(2):144-147.
赵振华.1993.铕地球化学特征的控制因素[J].南京大学学报(地球科学版),5(2):271.
周文喜.2018.黔北地区下寒武统黑色岩系的沉积环境与地球化学研究[D].贵阳:贵州大学:12-62.
朱笑青,王中刚.1994.冲绳海槽热水区沉积物的地球化学特征[A].胡瑞忠.矿床地球化学研究[C].北京:地震出版社:108-112.
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