Li Xiaoning, Huang Sijing, Huang Keke, Zhong Yijiang, Hu Zuowei. Differences and controls of carbon and oxygen isotope composition in dolomite and coexisting calcite under deposition conditions[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(6): 828-835. doi: 10.11781/sysydz201606828
Citation: Li Xiaoning, Huang Sijing, Huang Keke, Zhong Yijiang, Hu Zuowei. Differences and controls of carbon and oxygen isotope composition in dolomite and coexisting calcite under deposition conditions[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(6): 828-835. doi: 10.11781/sysydz201606828

Differences and controls of carbon and oxygen isotope composition in dolomite and coexisting calcite under deposition conditions

doi: 10.11781/sysydz201606828
  • Received Date: 2016-02-06
  • Rev Recd Date: 2016-09-28
  • Publish Date: 2016-11-28
  • We discussed the composition and factors influencing carbon and oxygen isotopes in dolomites and coexisting calcites in hand specimen mesoscale based on petrography and combined with elemental, X-ray diffraction and carbon and oxygen isotope analyses. Results indicated that dolomites have higher δ13C and δ18O values than coexisting calcites. Two factors may account for the higher δ18O values of dolomites. (1) The oxygen isotope fractionation factors of a dolomite-water system are higher than those of a calcite-water system. Therefore, oxygen isotope fractionation factors are greater than 1 in a dolomite-calcite system. (2) The fluids of dolomite precipitation have higher salinity and higher 18O abundance compared to coexisting calcite. In addition, the δ13C values of dolomites show the same trends with δ18O values. That is to say, the carbon isotope fractionation factors in a dolomite-CO2 system are higher than those in a calcite-CO2 system. Therefore, carbon isotope fractionation factors are greater than 1 in a dolomite-calcite system during replacement process. Oxygen isotope values varied obviously between syndepositional dolomites and coexisting calcites, while they were similar between hydrothermal/deeply burial dolomites and coexisting calcites.

     

  • loading
  • [1]
    Degens E T,Epstein S.Oxygen and carbon isotope ratios in coexisting calcites and dolomites from recent and ancient sediments[J].Geochimica et Cosmochimica Acta,1964,28(1):23-44.
    [2]
    Sheppard S M F,Schwarcz H P.Fractionation of carbon and oxygen isotopes and magnesium between coexisting metamorphic calcite and dolomite[J].Contributions to Mineralogy and Petrology,1970,26(3):161-198.
    [3]
    Clayton R N,Jones B F.Isotope studies of dolomite formation under sedimentary conditions[J].Geochimica et Cosmochimica Acta,1968,32(4):415-432.
    [4]
    Weber J N.Oxygen isotope fractionation between coexisting calcite and dolomite[J].Science,1964,145(3638):1303-1305.
    [5]
    Horacek M,Brandner R,Abart R.Carbon isotope record of the P/T boundary and the Lower Triassic in the southern Alps:Evidence for rapid changes in storage of organic carbon[J].Palaeogeography, Palaeoclimatology, Palaeoecology,2007,252(1/2):347-354.
    [6]
    Epstein S,Graf D L,Degens E T.Oxygen isotope studies on the origin of dolomites[C]//Isotopic and cosmic chemistry.Amsterdam:North-Holland Publishing Company,1964:169-180.
    [7]
    Northrop D A,Clayton R N.Oxygen-isotope fractionation in systems containing dolomite[J].The Journal of Geology,1966,74(2):174-196.
    [8]
    O'Neil J R,Epstein S.Oxygen isotope fractionation in the system dolomite-calcite-carbon dioxide[J].Science,1966,152(3719):198-201.
    [9]
    Clayton R A,Epstein S.The relationship between O18/O16 ratios in coexisting quartz,carbonate,and iron oxides from various geolo-gical deposits[J].The Journal of Geology,1958,66(4):352-371.
    [10]
    Engel A E J,Clayton R N,Epstein S.Variations in the isotopic composition of oxygen in the Leadville limestone (Mississippian,Colorado) and in its hydrothermal and metamorphic phases[J].The Journal of Geology,1958,66(4):374-393.
    [11]
    McKenzie J A.Holocene dolomitization of calcium carbonate sediments from the coastal Sabkhas of Abu Dhabi,U.A.E.:A stable isotope study[J].The Journal of Geology,1981,89(2):185-198.
    [12]
    Horita J.Oxygen and carbon isotope fractionation in the system dolomite-water-CO2 to elevated temperatures[J].Geochimica et Cosmochimica Acta,2014,129:111-124.
    [13]
    Deines P.Carbon isotope effects in carbonate systems[J].Geochimica et Cosmochimica Acta,2004,68(12):2659-2679.
    [14]
    Jiménez-López C,Romanek C S,Huertas F J,et al.Oxygen isotope fractionation in synthetic magnesian calcite[J].Geochimica et Cosmochimica Acta,2004,68(16):3367-3377.
    [15]
    Mavromatis V,Schmidt M,Botz R,et al.Experimental quantification of the effect of Mg on calcite-aqueous fluid oxygen isotope fractionation[J].Chemical Geology,2012,310/311:97-105.
    [16]
    Chacko T,Deines P.Theoretical calculation of oxygen isotope fractionation factors in carbonate systems[J].Geochimica et Cosmochimica Acta,2008,72(15):3642-3660.
    [17]
    李小宁,黄思静,胡博,等.合川盐井溪嘉陵江组第二段盐溶角砾岩-次生灰岩的碳氧同位素组成[J].成都理工大学学报(自然科学版),2015,42(6):734-745. Li Xiaoning,Huang Sijing,Hu Bo,et al.Carbon and oxygen isotope composition of evaporite-solution breccia-secondary limestone of Member 2 of Triassic Jialingjiang Formation in Hechuan,eastern Sichuan Basin,China[J].Journal of Chengdu University of Technology (Science & Technology Edition),2015,42(6):734-745.
    [18]
    曾云贤,刘微,李西宁.川东北地区飞仙关组构造演化与油气成藏研究[J].天然气工业,2015,25(S1):21-24. Zeng Yunxian,Liu Wei,Li Xining.Research on structural evolution and oil/gas reservoiring of Feixianguan Formation in northwest Sichuan Basin[J].Natural Gas Industry,2015,25(S1):21-24.
    [19]
    王兴志,张帆,马青,等.四川盆地东部晚二叠世-早三叠世飞仙关组礁、滩特征与海平面变化[J].沉积学报,2002,20(2):249-254. Wang Xingzhi,Zhang Fan,Ma Qing,et al.The characteristics of reef and bank and the fluctuation of sea-level in Feixianguan period of Late Permian-Early Triassic,east Sichuan Basin[J].Acta Sedimentologia Sinica,2002,20(2):249-254.
    [20]
    陈琪,胡文瑄,李庆,等.川东北盘龙洞长兴组-飞仙关组白云岩化特征及成因[J].石油与天然气地质,2014,33(1):84-93. Chen Qi,Hu Wenxuan,Li Qing,et al.Characteristics and genesis of dolomitization in Changxing and Feixianguan formations in Panlongdong,northeastern Sichuan Basin[J].Oil & Gas Geo-logy,2014,33(1):84-93.
    [21]
    Hips K,Haas J,Poros Z,et al.Dolomitization of Triassic microbial mat deposits (Hungary):Origin of microcrystalline dolomite[J].Sedimentary Geology,2015,318:113-129.
    [22]
    Füchtbauer H,Goldschmidt H.Beziehungen zwischen calciumgehalt und bildungsbedingungen der dolomite[J].Geologische Rundschau,1966,55(1):29-40.
    [23]
    黄可可,黄思静,胡作维,等.四川盆地宣汉渡口和重庆北碚下三叠统海相碳酸盐碳同位素组成与演化[J].古地理学报,2016,18(1):101-114. Huang Keke,Huang Sijing,Hu Zuowei,et al.Carbon isotopic composition and evolution of the Lower Triassic marine carbo-nates from Dukou of Xuanhan and Beibei of Chongqing,Sichuan Basin[J].Journal of Palaeogeography,2016,18(1):101-114.
    [24]
    Sun Yadong,Joachimski M M,Wignall P B,et al.Lethally hot temperatures during the Early Triassic greenhouse[J].Science,2012,338(6105):366-370.
    [25]
    Warren J.Dolomite:Occurrence,evolution and economically important associations[J].Earth-Science Reviews,2000,52(1/3):1-81.
    [26]
    祝幼华,罗辉,蔡华伟,等.四川广安谢家槽海相早、中三叠世地层划分[J].地层学杂志,2012,36(4):784-791. Zhu Youhua,Luo Hui,Cai Huawei,et al.Stratigraphic division of the Early and Middle Triassic at the Xiejiacao section in Guang'an,Sichuan[J].Journal of Stratigraphy,2012,36(4):784-791.
    [27]
    International Commission on Stratigraphy.International chronostratigraphic chart..www.stratigraphy.org.
    [28]
    O'Neil J R,Clayton R N,Mayeda T K.Oxygen isotope fractionation in divalent metal carbonates[J].The Journal of Chemical Physics,1969,51(12):5547-5558.
    [29]
    Friedman I,O'Neil J R.Compilation of stable isotope fractionation factors of geochemical interest.Washington:United States Government Printing Office,1977:KK1-KK12.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1171) PDF downloads(242) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return