Microbial activity at different types of mud volcanos in Japan: an insight from methane clumped isotope signatures

Naizhong Zhang1, Alexis Gilbert2, Mayuko Nakagawa1, Koudai Taguchi1 and Keita Yamada3, (1)Tokyo Institute of Technology, Department of Earth and Planetary Sciences, Tokyo, Japan, (2)Tokyo Institute of Technology, Department of Earth and Planetary Sciences, Tokyo, United States, (3)Tokyo Institute of Technology, School of Materials and Chemical Technology, Tokyo, Japan