All abstracts by Tomoya Obase in conference series: Goldschmidt

(2025) Temporal and Spatial Variations of Helium and Carbon Isotope Ratios at Kirishima Volcanic Group, Japan
Fukushima N, Sumino H, Ohba T, Yaguchi M, Ishibashi J-I, Yasuda Y, Obase T, Toyama K & Matsushima T

(2021) Secular Variations in Helium Isotope Ratios in Izu Oshima Volcano
Sumino H, Ikehata K, Shimizu A, Toyama K, Obase T & Notsu K

(2021) Temporal Variations in Helium and Argon Isotopic Compositions of Fumarolic Gases at Kusatsu-Shirane Volcano, Japan
Obase T, Sumino H, Toyama K, Ohba T, Yaguchi M & Terada A