Carbon-13 exchange between CO2 and CH4 under geothermal conditions

Bottinga, 1969, Calculated fractionation factors for carbon and hydrogen isotope exchange in the system calcite-carbon dioxide-graphite-methane-hydrogen-water vapour, Geochim. Cosmochim. Acta, 33, 49, 10.1016/0016-7037(69)90092-1 Coleman, 1981, Fractionation of carbon and hydrogen isotopes by methane-oxydizing bacteria, Geochim. Cosmochim. Acta, 45, 1033, 10.1016/0016-7037(81)90129-0 Craig, 1953, The geochemistry of the stable carbon isotopes, Geochim. Cosmochim. Acta, 3, 53, 10.1016/0016-7037(53)90001-5 Craig, 1963, The isotopic geochemistry of water and carbon in geothermal areas, 17 D'Amore, 1980, Evaluation of deep temperatures of hydrothermal systems by a new gas geothermometer, Geochim. Cosmochim. Acta, 44, 549, 10.1016/0016-7037(80)90051-4 Ferrara, 1963, Carbon isotopic composition of carbon dioxide and methane from steam jets of Tuscany, 277 Giggenbach, 1980, Geothermal gas equilibria, Geochim. Cosmochim. Acta, 44, 2021, 10.1016/0016-7037(80)90200-8 Grindley, 1965, The Geology, Structure and Exploitation of the Wairakei Geothermal Field, Taupo, New Zealand, Bull. Geol. Surv. New Zealand, No. 75, 131 Harris, 1951, Kinetics of isotopic exchange reactions, Trans. Farad. Soc., 47, 716, 10.1039/tf9514700716 Harting, 1980, Neue Ergebnisse zum Kohlenstoff-Isotopenaustausch im System CH4-CO2, Mitteilungen zur 2. Arbeitstagung “Isotope in der Natur”, Vol. 2b, 13 Hulston, 1962, Mass spectrometer measurements in the thermal areas of New Zealand. Part 2. Carbon isotopic ratios, Geochim. Cosmochim. Acta, 26, 399, 10.1016/0016-7037(62)90110-2 Hulston, 1976, Isotope work applied to geothermal systems at the Institute of Nuclear Sciences, New Zealand, Geothermics, 5, 89, 10.1016/0375-6505(77)90013-X Lyon, 1974, Isotopic analysis of gas from the Cariaco Trench sediments, 91 Sackett, 1979, Experimental confirmation of the lack of carbon isotope exchange between methane and carbon oxides at high temperatures, Geochim. Cosmochim. Acta, 43, 273, 10.1016/0016-7037(79)90246-1 Schoell, 1980, The hydrogen and carbon isotopic composition of methane from natural gases of various origins, Geochim. Cosmochim. Acta, 44, 649, 10.1016/0016-7037(80)90155-6 Stahl, 1977, Carbon and nitrogen isotopes in hydrocarbon research and exploration, Chem. Geol., 20, 121, 10.1016/0009-2541(77)90041-9 Wasserburg, 1963, Isotopic and chemical composition of some terrestrial natural gases, 219 Urey, 1947, The thermodynamic properties of isotopic substances, J. Am. Chem. Soc., 57, 562, 10.1039/jr9470000562