Behavior of magmatic components in fumarolic gases related to the 2018 phreatic eruption at Ebinokogen Ioyama volcano, Kirishima Volcanic Group, Kyushu, Japan
Ohba, Takeshi, Yaguchi, Muga, Tsunogai, Urumu, Ito, Masanori, Shingubara, Ryo
Published in Earth, planets, and space (31.03.2021)
Published in Earth, planets, and space (31.03.2021)
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Monitoring of magmatic-hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases
Obase, Tomoya, Sumino, Hirochika, Toyama, Kotaro, Kawana, Kaori, Yamane, Kohei, Yaguchi, Muga, Terada, Akihiko, Ohba, Takeshi
Published in Scientific reports (21.11.2022)
Published in Scientific reports (21.11.2022)
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Journal Article
Water sampling using a drone at Yugama crater lake, Kusatsu-Shirane volcano, Japan
Terada, Akihiko, Morita, Yuichi, Hashimoto, Takeshi, Mori, Toshiya, Ohba, Takeshi, Yaguchi, Muga, Kanda, Wataru
Published in Earth, planets, and space (19.04.2018)
Published in Earth, planets, and space (19.04.2018)
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Journal Article
Time variations in the chemical and isotopic composition of fumarolic gases at Hakone volcano, Honshu Island, Japan, over the earthquake swarm and eruption in 2015, interpreted by magma sealing model
Ohba, Takeshi, Yaguchi, Muga, Nishino, Kana, Numanami, Nozomi, Daita, Yasushi, Sukigara, Chiho, Ito, Masanori, Tsunogai, Urumu
Published in Earth, planets, and space (25.04.2019)
Published in Earth, planets, and space (25.04.2019)
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Quantitative Assessment of Temporal Changes in Subaqueous Hydrothermal Activity in Active Crater Lakes During Unrest Based on a Time-Series of Lake Water Chemistry
Terada, Akihiko, Yaguchi, Muga, Ohba, Takeshi
Published in Frontiers in earth science (Lausanne) (07.01.2022)
Published in Frontiers in earth science (Lausanne) (07.01.2022)
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Eruption history and petrogenesis of rocks from Nyos volcano (NW Cameroon): Evidence from lithostratigraphy and geochemistry
Hasegawa, Takeshi, Aka, Festus Tongwa, Miyabuchi, Yasuo, Nche, Linus Anye, Kobayashi, Tetsuo, Kaneko, Katsuya, Asaah, Asobo Nkengmatia Elvis, Kankeu, Boniface, Issa, Ohba, Takeshi, Kusakabe, Minoru, Hell, Joseph Victor
Published in Journal of volcanology and geothermal research (15.06.2019)
Published in Journal of volcanology and geothermal research (15.06.2019)
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A multi-tracer approach for assessing the origin, apparent age and recharge mechanism of shallow groundwater in the Lake Nyos catchment, Northwest, Cameroon
Kamtchueng, Brice Tchakam, Fantong, Wilson Yetoh, Wirmvem, Mengnjo Jude, Tiodjio, Rosine Edwige, Fouépé Takounjou, Alain, Asai, Kazuyoshi, Bopda Djomou, Serges L., Kusakabe, Minoru, Ohba, Takeshi, Tanyileke, Gregory, Hell, Joseph Victor, Ueda, Akira
Published in Journal of hydrology (Amsterdam) (01.04.2015)
Published in Journal of hydrology (Amsterdam) (01.04.2015)
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Temperature and electrical conductivity of water in Lake Nyos transmitted by an automatic observation buoy
Ohba, Takeshi, Ooki, Seigo, Oginuma, Yu, Yoshida, Hajime, Ntchantcho, Romaric, Ako, Andrew, Tawedi, Robert, Ayissi, Mevengue, Tanyileke, Gregory, Hell, Joseph V.
Published in Journal of African earth sciences (1994) (01.12.2020)
Published in Journal of African earth sciences (1994) (01.12.2020)
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Time Variation in the Chemical and Isotopic Composition of Fumarolic Gasses at Kusatsu-Shirane Volcano, Japan
Ohba, Takeshi, Yaguchi, Muga, Nishino, Kana, Numanami, Nozomi, Tsunogai, Urumu, Ito, Masanori, Shingubara, Ryo
Published in Frontiers in earth science (Lausanne) (24.09.2019)
Published in Frontiers in earth science (Lausanne) (24.09.2019)
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Isotopic composition of precipitation and groundwater onshore of the Rio del Rey Basin, southwest Cameroon: local meteoric lines and recharge
Wotany, Engome R., Wirmvem, Mengnjo J., Fantong, Wilson Y., Ayonghe, Samuel N., Wantim, Mabel N., Ohba, Takeshi
Published in Applied water science (01.08.2021)
Published in Applied water science (01.08.2021)
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Petrology and geochemistry of lavas from Gawar, Minawao and Zamay volcanoes of the northern segment of the Cameroon volcanic line (Central Africa): Constraints on mantle source and geochemical evolution
Gountié Dedzo, Merlin, Asaah, Asobo Nkengmatia Elvis, Martial Fozing, Eric, Tchamabé, Boris Chako, Tefogoum Zangmo, Ghislain, Dagwai, Nguihdama, Tchokona Seuwui, Dieudonné, Kamgang, Pierre, Aka, Festus Tongwa, Ohba, Takeshi
Published in Journal of African earth sciences (1994) (01.05.2019)
Published in Journal of African earth sciences (1994) (01.05.2019)
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Towards the reconstruction of the shallow plumbing system of the Barombi Mbo Maar (Cameroon) Implications for diatreme growth processes of a polygenetic maar volcano
Chako Tchamabé, Boris, Ohba, Takeshi, Kereszturi, Gabor, Németh, Karoly, Aka, Festus Tongwa, Youmen, Dieudonné, Issa, Miyabuchi, Yasuo, Ooki, Seigo, Tanyileke, Gregory, Hell, Joseph Victor
Published in Journal of volcanology and geothermal research (15.08.2015)
Published in Journal of volcanology and geothermal research (15.08.2015)
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A Depression Containing CO2-Enriched Water at the Bottom of Lake Monoun, Cameroon, and Implications for the 1984 Limnic Eruption
Ohba, Takeshi, Oginuma, Yu, Saiki, Kazuto, Kusakabe, Minoru, Issa, Fouepe, Takounjou A., Ntchantcho, Romaric, Tanyileke, Gregory, Hell, Joseph V.
Published in Frontiers in earth science (Lausanne) (25.05.2022)
Published in Frontiers in earth science (Lausanne) (25.05.2022)
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