2023
DOI: 10.5194/egusphere-egu23-3725
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Coupled methane clumped isotope and propane position-specific isotope analyses indicate significant methane contribution from biodegradation of hydrocarbons in terrestrial methane seeps located at central Japan

Abstract: <p>Terrestrial hydrocarbon seeps are widely distributed in oil/gas field. To constrain the sources and post-generation processes occurring in these seeping gases, various geochemical approaches, such as chemical and stable isotope composition (δ<sup>13</sup>C and δD) of hydrocarbons have been extensively used. However, the interpretation can be ambiguous due to the overlap of signatures when using these approaches only<sup>1&… Show more

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