华南埃迪卡拉纪陡山沱海洋中无机碳同位素组成变化VARIATIONS OF THE CARBONATE CARBON ISOTOPE IN EDIACARAN DOUSHANTUO OCEAN OF SOUTH CHINA
王伟,周传明,袁训来,陈哲,关成国
摘要(Abstract)：
报道了贵州江口桃映深水相剖面陡山沱组碳酸盐岩δ13C值的变化特征,结合其他已报道的数据,分析了华南扬子地区埃迪卡拉纪陡山沱海洋不同沉积环境,包括盆地相、斜坡相、台地相、台地边缘相碳酸盐岩中δ13C变化趋势及绝对值的异同,发现浅水区剖面记录的δ13C漂移次数多于深水区剖面,且不同相区δ13C值也有差异。δ13C值的差异与埃迪卡拉纪陡山沱海洋的阶段性演化密切相关。基于不同相区的δ13C值变化,埃迪卡拉纪陡山沱海洋的演化历史可分为3个时期:1)陡山沱组1段盖帽白云岩沉积期华南扬子地区很可能为一个开阔台地,白云岩中δ13C值可能继承于幔源CO2的碳同位素特征,深水区和浅水区碳酸盐中δ13C值无显著差异;2)陡山沱组2段和陡山沱组3段下部沉积时期盆地深水区中δ13C值显著低于浅水区,且深水区δ13C值与陡山沱组1段时期无显著差异,浅水区的δ13C值则显著升高;3)陡山沱组3段上部和陡山沱组4段沉积时期陡山沱盆地中δ13C值均显著下降,且不同沉积环境中的δ13C值差异度降低。盖帽后埃迪卡拉纪陡山沱海洋阶段性演化主要与不同时期深水区DOC库的逐步氧化有关。
关键词(KeyWords)： 同位素地层学;碳同位素;陡山沱海洋;埃迪卡拉纪;贵州;华南
基金项目(Foundation): 中国科学院知识创新方向性项目(KZCX2-EW-119);; 国家重点基础研究发展计划课题(2011CB808805);; 国家自然科学基金(J0930006)
作者(Author): 王伟,周传明,袁训来,陈哲,关成国
DOI: 10.19839/j.cnki.dcxzz.2011.04.001
参考文献(References)：
- 蒋干清,张世红,史晓颖,王新强.2008.华南埃迪卡拉纪陡山沱盆地氧化界面的迁移与碳同位素异常.中国科学(D辑),38(12):1481-1495
- 王约,何明华,喻美艺,赵元龙,彭进,杨荣军,张振含.2005.黔东北震旦纪陡山沱晚期庙河型生物群的生态特征及埋藏环境初探.古地理学报,7(3):327-335
- 尹崇玉,刘鹏举,陈寿铭,唐烽,高林志,王自强.2009.峡东地区埃迪卡拉系陡山沱组疑源类生物地层序列.古生物学报,48(2):146-154
- 袁训来,王丹,肖书海.2009.新元古代陡山沱期的动物.古生物学报,48(3):375-389
- 赵元龙,杨洪,李勇,彭进,杨兴莲,李峰军,伍孟银,程心,李炳霞.2008.贵州新元古代到寒武纪早期特异埋藏后生生物群及其研究意义.古生物学报,47(4):405-418
- Ader M,Macouin M,Trindade RI F,Hadrien M-H,Yang Zhen-yu,Sun Zhi-ming&Besse J.2009.A multilayered water columninthe Ediacaran Yangtze platform?Insights from carbonate andorganic matter pairedδ13C.Earth and Planetary Science Let-ters,288(1-2):213-227
- Berner R A.1981.A new geochemical classification of sedi mentaryenvironments.Journal of Sedi mentary Petrology,51(2):359-365
- Chu Xue-lei,Zhang Qi-rui,Zhang Tong-gang&Feng Lian-jun.2003.Sulfur and carbon isotopic variations in Neoproterozoicsedi mentary rocks from southern China.Progess in NaturalScience,13(11):875-880
- Condon D,Zhu Mao-yan,Bowring S,Wang Wei,Yang Ai-hua&JinYu-gan.2005.U-Pb ages fromthe Neoproterozic DoushantuoFormation,China.Science,308:95-98
- Fike D A,Grotzinger J P,Pratt L M&Summons R E.2006.Oxida-tion of the Ediacaran ocean.Nature,444:744-747
- Fri mmel H E.2010.On the reliability of stable carbon isotopes forNeoproterozoic chemostratigraphic correlation.PrecambrianResearch,182(4):239-253
- Guo Qing-jun,Liu Cong-qiang,Strauss H,Goldberg T,Zhu Mao-yan,Pi Dao-hui&Wang Jian.2006.Organic Carbon isotopegeochemistry of the Neoproterozoic Doushantuo Formation,South China.Acta Geologica Sinica(English Edition),80(5):670-683
- Guo Qing-jun,Strauss H,Liu Cong-qiang,Goldberg T,Zhu Mao-yan,Pi Dao-hui,Heubeck C,Vernhet E,Yang Xing-lian&FuPing-qing.2007.Carbonisotopic evolution of the terminal Neo-proterozoic and early Cambrian:evidence from the YangtzePlatform,South China.Palaeogeography,Palaeocli matolo-gy,Palaeoecology,254(1-2):140-157
- Halverson G P,Hoff man P F,Schrag D P,Maloof A C&Rice A HN.2005.Toward a Neoproterozoic composite carbon-isotoperecord.Geological Society of America Bulletin,117(9-10):1181-1207
- Hoefs J.2009.Stable isotope geochemistry.Berlin:Springer-Ver-lag.1-288
- Hoff man P F,Kauf man AJ,Halverson G P&Schrag D P.1998.ANeoproterozoic snowball earth.Science,281:1342-1346
- Hu Xin-ping&Burdige DJ.2008.Shallow marine carbonate disso-lution and early diagenesis-i mplications fromanincubation stud-y.Journal of Marine Research,66(4):489-527
- Jiang Gan-qing,Kauf man A J,Christie-Blick N,Zhang Shi-hong&Wu Huai-chun.2007.Carbonisotope variability across the Edi-acaran Yangtze Platformin South China:i mplications for alargesurface-to-deep oceanδ13C gradient.Earth and Planetary Sci-ence Letters,261(1-2):303-320
- Jiang Gan-qing,Kennedy MJ&Christie-Blick N.2003.Stable iso-topic evidence for methane seeps in Neoproterozoic postglacialcap carbonates.Nature,426:822-826
- Jiang Gan-qing,Wang Xin-qiang,Shi Xiao-ying,Zhang Shi-hong,XiaoShu-hai&Dong Jin.2010.Organic carbon isotope constraintson the dissolved organic carbon(DOC)reservoir at the Cryoge-nian-Ediacaran transition.Earth and Planetary Science Let-ters,299(1-2):159-168
- Jiang Gan-qing,Zhang Shi-hong,Shi Xiao-ying&Wang Xin-qiang.2008.Chemocline instability andisotope variations of the Edia-caran Doushantuo basinin South China.Science in China(Se-ries D:Earth Sciences),51(11):1560-1569
- Kauf man AJ,Corsetti F A&Varni MA.2007.The effect of risingat mospheric oxygen on carbon and sulfur isotope anomalies inthe Neoproterozoic Johnnie Formation,Death Valley,USA.Chemical Geology,237(1-2):47-63
- Kauf man AJ,Jiang Gan-qing,Christie-Blick N,Banerjee D M&RaiV.2006.Stable isotope record of the terminal NeoproterozoicKrol Platformin the Lesser Hi malayas of northern India.Pre-cambrain Research,147(1-2):156-185
- Kauf man AJ&Knoll A H.1995.Neoproterozoic variations in theC-isotopic composition of seawater:stratigraphic and biogeo-chemical i mplications.Precambrain Research,73(1-4):27-49
- Le Guerroue E,Allen P A,Cozzi A,Etienne J L&Fanning M.2006.50Myr recovery fromthe largest negativeδ13Cexcursionin the Ediacaran Ocean.Terra Nova,18(2):147-153
- Li Chao,Love G D,Lyons T W,Fike D A,Sessions A L&Chu Xue-lei.2010.A stratified redox model for the Ediacaran Ocean.Science,328:80-83
- Li Ren-wei,Chen Jin-shi,Zhang Shu-kun,Lei Jia-jin,Shen Yan-an&Chu Xue-lei.1999.Spatial and temporal variations in carbonand sulfur isotopic compositions of Sinian sedi mentary rocks inthe Yangtze Platform,South China.Precambrain Research,97(1-2):59-75
- Ling Hong-fei,Feng Hong-zhen,Pan Jia-yong,Jiang Shao-yong,Chen Yong-quan&Che Xi.2007.Carbon isotope variationthrough the Neoproterozoic Doushantuo and Dengying forma-tions,South China:i mplications for chemostratigraphy and pa-leoenvironmental change.Palaeogeography,Palaeocli matolo-gy,Palaeoecology,254(1-2):158-174
- Macouin MJ,Besse M,Ader S,Gilde S,Yang Zhen-yu,Sun Zhi-ming&Agrinier P.2004.Combined paleomagnetic andisotopic datafromthe Doushantuo carbonates,South China:i mplications forthe"snowball Earth"hypothesis.Earth and Planetary ScienceLetters,224(3-4):387-398
- McFadden K A,Huang Jing,Chu Xue-lei,Jiang Gan-qing,Kauf manAJ,Zhou Chuan-ming,Yuan Xun-lai&Xiao Shu-hai.2008.Pulsed oxidation and biological evolutionin the Ediacaran Dous-hantuo Formation.Proceedings of the National Academy ofSciences,105(9):3197-3202
- Patterson WP&Walter L M.1994.Depletion of13Cin seawaterΣCO2on modern carbonate platforms:significance for the car-bonisotopic record of carbonates.Geology,22(10):885-888
- Prave A R,Fallick A E,Thomas C W&Graham C M.2009.Acomposite C-isotope profile for the Neoproterozoic Dalradian Su-pergroup of Scotland andIreland.Journal ofthe Geological So-ciety,166(5):845-857
- Rothman D H,Hayes J M&Summons R.2003.Dynamics of the Neoproterozoic carbon cycle.Proceedings of the National A-cademy of Sciences,100(14):8124-8129
- Sawaki Y,Ohno T,Tahata M,Komiya T,Hirata T,Maruyama S,Windley B,Hand Jian,Shu De-gan&Li Yong.2010.The Edia-caran radiogenic Sr isotope excursionin the Doushantuo Forma-tionin the Three Gorges area,South China.Precambrain Re-search,176(1-4):46-64
- Shen Yan-an,Zhang Tong-gang&Chu Xue-lei.2005.C-isotopicstratification in a Neoproterozoic postglacial ocean.Precam-brain Research,137(3-4):243-251
- Shields G A.2005.Neoproterozoic cap carbonates:a critical ap-praisal of existing models andthe plume world hypothesis.Ter-ra Nova,17(4):299-310
- Veizer J,Ala D,Azmy K,Bruckschen P,Buhl D,Bruhnd F,Carden GA F,Diener A,Ebneth S,Godderis Y,Jasper T,Korte C,Pawellek F,Podlaha O G&Strauss H.1999.87Sr/86Sr,δ13Candδ18Oevolution of Phanerozoic seawater.Chemical Geology,161(1-3):59-88
- Vernhet E&Reij mer J J G.2010.Sedi mentary evolution of theEdiacaran Yangtze Platform Shelf(Hubei and Hunan prov-inces,Central China).Sedi mentary Geology,225(3-4):99-115
- Walter L M,Ku T C W,Muehlenbachs K,Patterson WP&BonnellL.2007.Controls on theδ13C of dissolved inorganic carbon inmarine pore waters:an integrated case study of isotope ex-change during syndepositional recrystallization of biogenic car-bonate sedi ments(South Florida Platform,USA).Deep-SeaResearch Part II-Topical Studies in Oceanography,54(11-13):1163-1200
- Wang Xin-qiang&Shi Xiao-ying.2009.Spatio-temporal carboniso-tope variation duringthe Ediacaran periodin South China anditsi mpact on bio-evolution.Science in China(Series D:Earth Sci-ence),52(10):1520-1528
- Wang Yue,He Ming-hua,Yu Mei-yi,Zhao Yuan-long,Peng Jin,Yang Rong-jun&Zhang Zhen-han.2005.Preli minary discus-sion on ecological characteristics and buried environments of Mi-aohe-type Biota during the Late Doushantuoian of Sinian innortheastern Guizhou Province.Journal of Palaeogeography,7(3):327-335
- Yang Jie-dong,Sun Wei-guo,Wang Zong-zhe,Xue Yao-song&Tao Xian-cong.1999.Variationsin Sr and Cisotopes and Ce a-nomaliesin successions fromChina:evidence for the oxygenationof Neoproterozoic seawater?Precambrain Research,93(2-3):215-233
- Yin Chong-yu,Liu Peng-ju,Chen Shou-ming,Tang Feng,Gao Lin-zhi&Wang Zi-qing.2009.Acritarch biostratigraphic succession ofthe Ediacaran Doushantuo Formation in the Yangtze Gorges.Acta Palaeontologica Sinica,48(2):146-154
- Yin Chong-yu,Tang Feng,Liu Yong-qin,Gao Lin-zhi,Liu Peng-juXing Yu-sheng,Yang Zhi-qing,Wan Yu-sheng&Wang Ziqiang.2005.U-Pb zircon age fromthe base of the EdiacaranDoushantuo Formation in the Yangtze Gorges,South Chinaconstraint onthe age of Marinoan Glaciation.Episodes,28(1)48-49
- Yuan Xun-lai&Hof mann H J.1998.New microfossils from theNeoproterozoic(Sinian)Doushantuo Formation,Wengan,Guizhou Province,southwestern China.Alcheringa,22(3):189-222
- Yuan Xun-lai,Wang Dan&Xiao Shu-hai.2009.Ani mals in theNeoproterozoic Doushantuo Epoch.Acta Palaeontologica Sini-ca,48(3):375-389
- Zhang Shi-hong,Jiang Gan-qing,Zhang Jun-ming,Song Biao,Kenne-dy MJ&Christie-Blick N.2005.U-Pb sensitive high solutionion microprobe ages fromthe Doushantuo Formation in SouthChina,Constraints on late Neoproterozoic glaciations.Geolo-gy,33(6):473-476
- Zhang Tong-gang,Chu Xue-lei,Zhang Qi-rui,Feng Lian-jun&HuoWei-guo.2003.Variations of sulfur and carbonisotopes in sea-water during the Doushantuo stage in Late Neoproterozoic.Chinese Science Bulletin,48(13):1375-1380
- Zhao Yuan-long,Yang Hong,Li Yong,Peng Jin,Yuan Xun-lai,LiFeng-jun,Wu Meng-yin,Cheng Xin&Li Bing-xia.Exceptionalpreserved early Metazoan biotas of Neoproterozoic-Cambrian inGuizhou and their i mplications:a brief introduction.ActaPalaeontologica Sinica,47(4):405-418
- Zhou Chuan-ming,Bao Hui-min,Peng Yong-bo&Yuan Xun-lai.2010.Ti ming the deposition of17O-depleted barite at the after-math of Nantuo glacial meltdown in South China.Geology,38(10):903-906
- Zhou Chuan-ming,Tucker R,Xiao Shu-hai,Peng Yong-bo,YuanXun-lai&Chen Zhe.2004.New constraints on the ages ofNeoproterozoic glaciations in South China.Geology,32(5):437-440
- Zhou Chuan-ming&Xiao Shu-hai.2007.Ediacaranδ13C chemos-tratigraphy of South China.Chemical Geology,237(1/2):89-108
- Zhou Chuan-ming,Xie Gu-wei,Kathleen M,Xiao Shu-hai&YuanXun-lai.2007.The diversification and extinction of Doushan-tuo-Pertatataka acritarchs in South China:causes and biostrati-graphic significance.Geological Journal,42(3-4):229-262
- Zhu Mao-yan,Zhang Jun-ming,Steiner M,Yang Ai-hua,Li Guo-xiang&Erdt mann B D.2003.Sinian and Early Cambrian stra-tigraphic frameworks fromshallow-to deep-water facies of theYangtze Platform:anintegrated approach.Progressin NaturalScience,13(12):951-960
- Zhu Mao-yan,Zhang Jun-ming&Yang Ai-hua.2007.IntegratedEdiacaran(Sinian)chronostratigraphy of South China.Palaeo-geography,Palaeocli matology,Palaeoecology,254(1-2):7-61