Papers - Umeda Koji
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Estimation method of uplift during late Quaternary in an inland area: Case study of fluvial terraces along Kaburagawa river and Tokigawa river
安江健一, 田力正好, 谷川晋一, 須貝俊彦, 山田浩二, 梅田浩司
原子力バックエンド研究(CD-ROM) 18 ( 2 ) 51 - 62 2011
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An efficient and effective stacking method for MT spectrum data;-A validation study using survey data-
根木健之, 梅田浩司, 松尾公一, 浅森浩一, 横井浩一, 大原英史
物理探査 64 ( 2 ) 153 - 165 2011
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Electrical resistivity structure and helium isotopes around Naruko volcano, northeastern Japan and its implication for the distribution of crustal magma
Koichi Asamori, Koji Umeda, Yasuo Ogawa, Teruki Oikawa
International Journal of Geophysics 2010 2010
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An efficient and effective stacking method for MT spectrum data;<br/>&mdash;Effectiveness against coherent noise&mdash;
Tateyuki Negi, Koji Umeda, Koichi Matsuo, Koichi Asamori, Koichi Yokoi, Hidefumi Ohara
BUTSURI-TANSA(Geophysical Exploration) 63 ( 5 ) 395 - 408 2010
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Helium isotopes as a tool for detecting concealed active faults
Koji Umeda, Atusi Ninomiya
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 10 2009.8
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Heat source for an amagmatic hydrothermal system, Noto Peninsula, Central Japan
Koji Umeda, Atusi Ninomiya, Tateyuki Negi
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 114 ( B1 ) 2009.1
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High He-3 emanations from the source regions of recent large earthquakes, central Japan
Koji Umeda, Atusi Ninomiya, Glen F. McCrank
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 9 2008.12
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New (U-Th)/He dating systems and ages in Japan Atomic Energy Agency
K. Yamada, T. Hanamuro, T. Tagami, R. Yamada, K. Umeda
GEOCHIMICA ET COSMOCHIMICA ACTA 72 ( 12 ) A1050 - A1050 2008.7
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Thermal history of the alteration zones around hot springs at Hongu and Totsukawa area, Southern Kii Peninsula, Southwest Japan
HANAMURO Takahiro, UMEDA Koji, TAKASHIMA Isao, NEGISHI Yoshimitsu
Japanese Magazine of Mineralogical and Petrological Sciences 37 ( 2 ) 27 - 38 2008.3
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Zircon fission track ages for pyroclastics from the Mutsu Hiuchidake volcano and the basement rocks, Northeast Japan: Re examination of the latest volcanic history
Koji Umeda, Tohru Danhara
Japanese Magazine of Mineralogical and Petrological Sciences 37 ( 5 ) 131 - 136 2008
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Thermochronology of non-volcanic hydrothermal activity in the Kii Peninsula, Southwest Japan: Evidence from fission track dating and helium isotopes in paleo-hydrothermal fluids
Koji Umeda, Takahiro Hanamuro, Kunimi Yamada, Yoshimitsu Negishi, Hideki Iwano, Tohru Danhara
RADIATION MEASUREMENTS 42 ( 10 ) 1647 - 1654 2007.11
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Helium isotopes as geochemical indicators of a serpentinized fore-arc mantle wedge
Koji Umeda, Glen F. McCrank, Atusi Ninomiya
Journal of Geophysical Research: Solid Earth 112 ( 10 ) 2007.10
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Multiple lines of evidence for crustal magma storage beneath the Mesozoic crystalline Iide Mountains, northeast Japan
Koji Umeda, Koichi Asamori, Atusi Ninomiya, Sunao Kanazawa, Teruki Oikawa
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 112 ( B5 ) 2007.5
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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, Koichi Asamori
GEOPHYSICAL RESEARCH LETTERS 34 ( 5 ) 2007.3
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Temporal-spatial variations of Plio-Pleistocene volcanic activity in the Ryohaku Mountains, central Japan : evidences from K-Ar ages
TANASE Atsushi, OIKAWA Teruki, NINOMIYA Atusi, HAYASHI Shintaro, UMEDA Koji
Bulletin of the Volcanological Society of Japan 52 ( 1 ) 39 - 61 2007.2
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Magnetotelluric imaging of crustal magma storage beneath the Mesozoic crystalline mountains in a nonvolcanic region, northeast Japan
Koji Umeda, Koichi Asamori, Tateyuki Negi, Yasuo Ogawa
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 7 2006.8
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Variations in the (3)He/(4)He ratios of hot springs on Shikoku Island, southwest Japan
K Umeda, S Kanazawa, C Kakuta, K Asamori, T Oikawa
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 7 2006.4
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Unusual cooling of the Middle Miocene Ichifusayama Granodiorite, Kyushu, Japan
T Oikawa, K Umeda, S Kanazawa, T Matsuzaki
JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES 101 ( 1 ) 23 - 28 2006.2
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Deep structure of the miocene igneous complex in the KII Peninsula, Southwest Japan, inferred from wide-band magnetotelluric soundings
Koji Umeda
Advances in Geosciences: Volume 1: Solid Earth (SE) 207 - 213 2006.1
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Aqueous fluids derived from a subducting slab: Observed high He-3 emanation and conductive anomaly in a non-volcanic region, Kii Peninsula southwest Japan
K Umeda, Y Ogawa, K Asamori, T Oikawa
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 149 ( 1-2 ) 47 - 61 2006.1