Daisen Kurayoshi Pumice : Stratigraphy, Chronology, Distribution and Implication to Late Pleistocene Events in Central JapanMACHIDA, Hiroshi; ARAI, Fusao · Journal of Geography (Chigaku Zasshi) · 1979

Extensive ash falls in and around the sea of Japan from large late quaternary eruptionsMachida, Hiroshi; Arai, Fusao · Journal of Volcanology and Geothermal Research · 1983

Omine Pyroclastic Flow Deposits: A marker tephra for the study of evolution of the Japan Northern Alps.MACHIDA, Hiroshi; YAMAZAKI, Haruo; ARAI, Fusao; FUJIWARA, Osamu · Journal of Geography (Chigaku Zasshi) · 1997

Identification of Lower Pleistocene widespread tephras associated with large caldera‐forming eruptions in the Tohoku area, north‐east JapanSuzuki, Takehiko; Maruyama, Seiji; Danhara, Tohru; Hirata, Takafumi; Machida, Hiroshi; Arai, Fusao · Journal of Quaternary Science · 2019

Implications of the Time-marker Aso-3 Tephra to the Significant Lowering of Sea Level in the Marine Isotope Stage 5d.MACHIDA, Hiroshi; ARAI, Fusao · Journal of Geography (Chigaku Zasshi) · 1994