Magma deformation may induce non-explosive volcanism via degassing through bubble networks S Okumura, M Nakamura, S Takeuchi, A Tsuchiyama, T Nakano, ... Earth and Planetary Science Letters 281 (3-4), 267-274, 2009 | 135 | 2009 |
Evolution of bubble microstructure in sheared rhyolite: Formation of a channel‐like bubble network S Okumura, M Nakamura, A Tsuchiyama, T Nakano, K Uesugi Journal of Geophysical Research: Solid Earth 113 (B7), 2008 | 117 | 2008 |
Pulse-laser irradiation experiments of Murchison CM2 chondrite for reproducing space weathering on C-type asteroids M Matsuoka, T Nakamura, Y Kimura, T Hiroi, R Nakamura, S Okumura, ... Icarus 254, 135-143, 2015 | 88 | 2015 |
Shear deformation experiments on vesicular rhyolite: Implications for brittle fracturing, degassing, and compaction of magmas in volcanic conduits S Okumura, M Nakamura, T Nakano, K Uesugi, A Tsuchiyama Journal of Geophysical Research: Solid Earth 115 (B6), 2010 | 81 | 2010 |
Coupled effect of magma degassing and rheology on silicic volcanism S Okumura, M Nakamura, K Uesugi, T Nakano, T Fujioka Earth and Planetary Science Letters 362, 163-170, 2013 | 76 | 2013 |
Shear‐induced bubble coalescence in rhyolitic melts with low vesicularity S Okumura, M Nakamura, A Tsuchiyama Geophysical research letters 33 (20), 2006 | 73 | 2006 |
Three differentiation stages of a single magma at Piton de la Fournaise volcano (Reunion hot spot) V Famin, B Welsch, S Okumura, P Bachelery, S Nakashima Geochemistry, Geophysics, Geosystems 10 (1), 2009 | 63 | 2009 |
Permeability reduction of fractured rhyolite in volcanic conduits and its control on eruption cyclicity S Okumura, O Sasaki Geology 42 (10), 843-846, 2014 | 56 | 2014 |
Molar absorptivities of OH and H2O in rhyolitic glass at room temperature and at 400–600 °C S Okumura, S Nakashima American Mineralogist 90 (2-3), 441-447, 2005 | 53 | 2005 |
Determination of molar absorptivity of IR fundamental OH-stretching vibration in rhyolitic glasses S Okumura, M Nakamura, S Nakashima American Mineralogist 88 (11-12), 1657-1662, 2003 | 50 | 2003 |
Water diffusion in basaltic to dacitic glasses S Okumura, S Nakashima Chemical Geology 227 (1-2), 70-82, 2006 | 44 | 2006 |
Color measurements of volcanic ash deposits from three different styles of summit activity at Sakurajima volcano, Japan: Conduit processes recorded in color of volcanic ash Y Yamanoi, S Takeuchi, S Okumura, S Nakashima, T Yokoyama Journal of Volcanology and Geothermal Research 178 (1), 81-93, 2008 | 43 | 2008 |
Water diffusivity in rhyolitic glasses as determined by in situ IR spectroscopy S Okumura, S Nakashima Physics and Chemistry of Minerals 31, 183-189, 2004 | 42 | 2004 |
Hydration of rhyolitic glass during weathering as characterized by IR microspectroscopy T Yokoyama, S Okumura, S Nakashima Geochimica et Cosmochimica Acta 72 (1), 117-125, 2008 | 36 | 2008 |
Space weathering simulation with low-energy laser irradiation of Murchison CM chondrite for reproducing micrometeoroid bombardments on C-type asteroids M Matsuoka, T Nakamura, T Hiroi, S Okumura, S Sasaki The Astrophysical Journal Letters 890 (2), L23, 2020 | 34 | 2020 |
Carbon dioxide emission to Earth’s surface by deep-sea volcanism S Okumura, N Hirano Geology 41 (11), 1167-1170, 2013 | 33 | 2013 |
Experimental constraints on permeable gas transport in crystalline silicic magmas S Okumura, M Nakamura, T Nakano, K Uesugi, A Tsuchiyama Contributions to Mineralogy and Petrology 164, 493-504, 2012 | 33 | 2012 |
Color-change processes of a plinian pumice and experimental constraints of color-change kinetics in air of an obsidian M Moriizumi, S Nakashima, S Okumura, Y Yamanoi Bulletin of Volcanology 71, 1-13, 2009 | 31 | 2009 |
Combined numerical and experimental study of microstructure and permeability in porous granular media P Eichheimer, M Thielmann, W Fujita, GJ Golabek, M Nakamura, ... Solid Earth 11 (3), 1079-1095, 2020 | 22 | 2020 |
Water diffusion in silica glass through pathways formed by hydroxyls M Kuroda, S Tachibana, N Sakamoto, S Okumura, M Nakamura, ... American mineralogist 103 (3), 412-417, 2018 | 21 | 2018 |