High-O2, low-CO2 atmosphere on early Mars inferred from manganese oxide deposits
Yasuhito Sekine1, Shoko Imanura2, Natsumi Noda3, Yoshio Takahashi4, Soichiro Uesugi2, Minako Kurisu5 and Jens Hartmann6, (1)Earth-Life Science Institute (ELSI), Tokyo, Japan, (2)University of Tokyo, Bunkyo, Japan, (3)Earth-Life Science Institute, Meguro, Tokyo, Japan, (4)The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan, (5)University of Tokyo, Bunkyo-ku, Japan, (6)Universität Hamburg, Geosciences / Center for Earth System Research and Sustainability (CEN), Hamburg, Germany