Koji Umeda

Aqueous fluids derived from a subducting slab: Observed high 3He emanation and conductive anomaly in a non-volcanic region, Kii Peninsula southwest Japan

Koji Umeda, Yasuo Ogawa, Koichi Asamori et al. · Journal of Volcanology and Geothermal Research · 2005 · 78 citations

Geophysics, Plate Tectonics, Volcanology +12

Late Cenozoic volcanic activity in the Chugoku area, southwest Japan arc during back‐arc basin opening and reinitiation of subduction

Jun‐Ichi Kimura, T. Kunikiyo, Isaku Osaka et al. · Island Arc · 2003 · 68 citations

Volcanology, Engineering, Volcanism +16

Relationship between helium isotopes and heat flux from hot springs in a non‐volcanic region, Kii Peninsula, southwest Japan

Koji Umeda, Yukihiro Sakagawa, Atusi Ninomiya et al. · Geophysical Research Letters · 2007 · 34 citations · Full text

Geophysics, Helium Isotopes, Southwest Japan +15

Constraining the timing of brittle deformation and faulting in the Toki granite, central Japan

S. Yamasaki, Horst Zwingmann, Kunimi Yamada et al. · Chemical Geology · 2013 · 31 citations

Fault Geometry, Crustal Deformation, Engineering +10

Helium isotopes as a tool for detecting concealed active faults

Koji Umeda, Atusi Ninomiya · Geochemistry Geophysics Geosystems · 2009 · 30 citations · Full text

Engineering, Helium Isotope Data, Earth Science +17