Carbon and oxygen isotope fractionation in the water-calcite-aragonite system
作者： Jens Fohlmeister , Jennifer Arps , Christoph Spötl , Andrea Schröder-Ritzrau , Birgit Plessen
DOI: 10.1016/J.GCA.2018.05.022
关键词: Isotope fractionation 、 Aragonite 、 Isotope 、 Chemistry 、 Fractionation 、 Analytical chemistry 、 Stable isotope ratio 、 Isotopes of oxygen 、 Calcite 、 Rayleigh fractionation
摘要: Abstract The precise determination of the stable C and O isotope fractionation between water calcite (CC) aragonite (AR) is special interest for climate reconstructions, e.g. paleotemperatures. Previous studies reported results from both laboratory field experiments, but their are only partly consistent. Here we present data a stalagmite Swiss Alps, which shows CC-AR transitions along individual growth layers. Using detailed analyses laterally perpendicular to such layers examined difference in factor HCO3− – CC AR system. For this similar water-CC water-AR offset provided experimental studies. system comparable those determined statistically significant correlation with CaCO3 precipitation rate. found difference, independent rate slightly smaller values compared literature values. However, also an unexpected decrease δ13C layers, contradicts widely used concept Rayleigh during CO2 degassing precipitation. study can be e.g., correct time series stalagmites showing axes.
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sci-hub.se 参考文章(47)
Silvia Frisia, Ian J. Fairchild, Jens Fohlmeister, Renza Miorandi, Christoph Spötl, Andrea Borsato, Carbon mass-balance modelling and carbon isotope exchange processes in dynamic caves Geochimica et Cosmochimica Acta. ,vol. 75, pp. 380- 400 ,(2011) , 10.1016/J.GCA.2010.10.021
James R. O'Neil, Robert N. Clayton, Toshiko K. Mayeda, Oxygen Isotope Fractionation in Divalent Metal Carbonates The Journal of Chemical Physics. ,vol. 51, pp. 5547- 5558 ,(1969) , 10.1063/1.1671982
James M. Watkins, Laura C. Nielsen, Frederick J. Ryerson, Donald J. DePaolo, The influence of kinetics on the oxygen isotope composition of calcium carbonate Earth and Planetary Science Letters. ,vol. 375, pp. 349- 360 ,(2013) , 10.1016/J.EPSL.2013.05.054
James M. Watkins, Jonathan D. Hunt, Frederick J. Ryerson, Donald J. DePaolo, The influence of temperature, pH, and growth rate on the δ18O composition of inorganically precipitated calcite Earth and Planetary Science Letters. ,vol. 404, pp. 332- 343 ,(2014) , 10.1016/J.EPSL.2014.07.036
Christian Mühlinghaus, Denis Scholz, Augusto Mangini, Modelling stalagmite growth and δ13C as a function of drip interval and temperature Geochimica et Cosmochimica Acta. ,vol. 71, pp. 2780- 2790 ,(2007) , 10.1016/J.GCA.2007.03.018
Gen-Tao Zhou, Yong-Fei Zheng, An experimental study of oxygen isotope fractionation between inorganically precipitated aragonite and water at low temperatures Geochimica et Cosmochimica Acta. ,vol. 67, pp. 387- 399 ,(2003) , 10.1016/S0016-7037(02)01140-7
Wolfgang Dreybrodt, Evolution of the isotopic composition of carbon and oxygen in a calcite precipitating H2O–CO2–CaCO3 solution and the related isotopic composition of calcite in stalagmites Geochimica et Cosmochimica Acta. ,vol. 72, pp. 4712- 4724 ,(2008) , 10.1016/J.GCA.2008.07.022
Christian Mühlinghaus, Denis Scholz, Augusto Mangini, Modelling fractionation of stable isotopes in stalagmites. Geochimica et Cosmochimica Acta. ,vol. 73, pp. 7275- 7289 ,(2009) , 10.1016/J.GCA.2009.09.010
Microstratigraphic logging of calcite fabrics in speleothems as tool for palaeoclimate studies International Journal of Speleology. ,vol. 44, pp. 1- 16 ,(2015) , 10.5038/1827-806X.44.1.1
Christopher S Romanek, Ethan L Grossman, John W Morse, Carbon isotopic fractionation in synthetic aragonite and calcite: Effects of temperature and precipitation rate Geochimica et Cosmochimica Acta. ,vol. 56, pp. 419- 430 ,(1992) , 10.1016/0016-7037(92)90142-6