High benthic methane flux in low sulfate oceans: Evidence from carbon isotopes in Late Cretaceous Antarctic bivalves

• Published in: Earth and Planetary Science Letters
• Main Authors: Hall, Joanna L.O., Newton, Robert J., Witts, James D., Francis, Jane E., Hunter, Stephen J., Jamieson, Robert A., Harper, Elizabeth M., Crame, J. Alistair, Haywood, Alan M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2018
• Subjects: Marine Sciences; Chemistry; Antarctic; Seymour; Seymour Island; Antarc*; Antarctica
• Online Access: http://nora.nerc.ac.uk/id/eprint/520374/; https://nora.nerc.ac.uk/id/eprint/520374/1/1-s2.0-S0012821X18303534-main.pdf; https://doi.org/10.1016/j.epsl.2018.06.014

The shell material of marine benthic bivalves provides a sensitive archive of water chemistry immediately above the sediment–water interface, which in turn is affected by sedimentary geochemistry and redox reactions. Sulfate has a major controlling effect on sedimentary carbon cycling, particularly...