Fractionation of O2/N2 and Ar/N2 in the Antarctic ice sheet during bubble formation and bubble–clathrate hydrate transition from precise gas measurements of the Dome Fuji ice core

• Published in: The Cryosphere
• Main Authors: Oyabu, Ikumi, Kawamura, Kenji, Uchida, Tsutomu, Fujita, Shuji, Kitamura, Kyotaro, Hirabayashi, Motohiro, Aoki, Shuji, Morimoto, Shinji, Nakazawa, Takakiyo, Severinghaus, Jeffrey P, Morgan, Jacob D
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: eScholarship, University of California 2021
• Subjects: Oceanography; Physical Geography and Environmental Geoscience; Meteorology & Atmospheric Sciences; Antarc*; Antarctic; ice core; Ice Sheet; The Cryosphere
• Online Access: https://escholarship.org/uc/item/7r22t5tk; https://escholarship.org/content/qt7r22t5tk/qt7r22t5tk.pdf; https://doi.org/10.5194/tc-15-5529-2021

Abstract. The variations of δO2/N2 and δAr/N2 in the Dome Fuji ice core were measured from 112 m (bubbly ice) to 2001 m (clathrate hydrate ice). Our method, combined with the low storage temperature of the samples (−50 ∘C), successfully excludes post-coring gas-loss fractionation signals from our da...