Measurements of 14 C in ancient ice from Taylor Glacier, Antarctica constrain in situ cosmogenic 14 CH 4 and 14 CO production rates

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Petrenko, Vasilii V., Severinghaus, Jeffrey P., Schaefer, Hinrich, Smith, Andrew M., Kuhl, Tanner, Baggenstos, Daniel, Hua, Quan, Brook, Edward J., Rose, Paul, Kulin, Robb, Bauska, Thomas, Harth, Christina, Buizert, Christo, Orsi, Anais, Emanuele, Guy, Lee, James E., Brailsford, Gordon, Keeling, Ralph, Weiss, Ray F.
• Language: unknown
• Published: 2023
• Subjects: 58 GEOSCIENCES; Taylor Glacier; Antarc*; Antarctica; Ice; ice core; permafrost
• Online Access: http://www.osti.gov/servlets/purl/1737573; https://www.osti.gov/biblio/1737573; https://doi.org/10.1016/j.gca.2016.01.004

Carbon-14 ( 14 C) is incorporated into glacial ice by trapping of atmospheric gases as well as direct near-surface in situ cosmogenic production. 14 C of trapped methane ( 14 CH 4 ) is a powerful tracer for past CH 4 emissions from “old” carbon sources such as permafrost and marine CH 4 clathrates....