Presentations -
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火山灰に含まれる硫黄鉱物の存在量と同位体組成の経時変化 - 阿蘇火山 2021 年 10 月噴火火山灰試料の例 -
平田 碧・大場 司・井村 匠・ 高橋亮平・Pearlyn Cabarubias Manalo・長井雅史・佐藤比奈子・池田柾道
日本火山学会 (鹿児島) 2023.10 - 2023.10 日本火山学会
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西岩手カルデラ中央火口丘形成期のマグマの分化作用
池田柾道・大場 司
日本火山学会 (鹿児島) 2023.10 - 2023.10 日本火山学会
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Characteristics and origins of erupted volcanic ash particles: Insights from maar complex deposits at Lamongan Volcanic Field, East Java, Indonesia
Andriansyah Gurusinga, Tsukasa Ohba
IAVCEI (Rotorua) 2023.02 - 2023.02
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Characteristics of pyroclastic ash fall deposits: the pre-historical explosive eruption of Ciremai volcano, West Java, Indonesia
Wildan Nur Hamzah, Tsukasa Ohba, Andriansyah Gurusinga, Jananda N. Indriyanto, Mirzam Abdurrachman, Idham A. Kurniawan
IAVCEI (Rotorua) 2023.02 - 2023.02
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(entry) Zircon U-Pb ages of volcanic rocks from Gongozaki - Akashima, northwestern coast of Oga Peninsula, northeast Japan
CHIBA Akira, AOKI Shogo, KON Yoshiaki, IKEDA Masamichi, HIRATA Aoi, Kikuchi Eimi, Ohba Tsukasa
Annual Meeting of the Geological Society of Japan 2023 - 2023 The Geological Society of Japan
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Batik lava: an unusual surface structure on a latitic lava flow
T Ohba, WN Hamuzah, MLA Moktikanana, MS Adiva, YA Prasetya, M. Abdurrachman
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2023 - 2023 The Volcanological Society of Japan
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Eruption sequence and evolution of magma plumbing system at Saruana lava, Chokai volcano
Kikuchi Eimi, Ohba Tsukasa
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2023 - 2023 The Volcanological Society of Japan
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Magmatic differentiation in the West-Iwate Caldera Central Cone Stage
IKEDA Masamichi, OHBA Tsukasa
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2023 - 2023 The Volcanological Society of Japan
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Changes of the amounts and sulfur isotope compositions of sulfur minerals in volcanic ash
Hirata Aoi, Ohba Tsukasa, Imura Takumi, Takahashi Ryohei, Cabarubias Manalo Pearlyn, Nagai Masashi, Sato Hinako, Ikeda Masamichi
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2023 - 2023 The Volcanological Society of Japan
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Inverse crystallization order of phenocrysts in high-Mg basalt from Ryozen Formation, Fukushima prefecture
大場 司・安藤瞬也
Japan Geoscience Union (Online) 2021 Meeting (Online) 2021.06 - 2021.06 Japan Geoscience Union (Online)
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Explosive eruption sequence after the 2.5 ka Kisakata Debris Avalanche at Chokai volcano
Endo Masahiro, Ohba Tsukasa, Koizumi Nobuhiro, Ban Masao, Imura Takumi, Minami Yusuke, Nakagawa Mitsuhiro
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2021 - 2021 The Volcanological Society of Japan
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Unpredictable Hazardous Volcanic Activities in Japan, Indonesia, and Elsewhere
Tsukasa Ohba [Invited]
5th International Conference of Geological Engineering Faculty Universitas Padjajaran (オンライン) 2020.11 - 2020.11 UNPAD
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Crystal-size distribution and micro-textures variation of Holocene volcanic products from the last 2000 years eruption of Kelud volcano, Indonesia: an apporach to understand the conduit dynamics
Jananda Nuralam Indriyanto, Tsukasa Ohba, Takashi Hoshide, Mirzam Abdurrachmen
JpGU-AGU meeting (Online) 2020.07 - 2020.07 JPGU, -AGU
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Deep crystallization of tholeiite melt: insights from Mangao Basalt, Palawan, Philippines
James Cesar Avisado Refran, Tsukasa Ohba, Carlo Arcilla, Takashi Hoshide, Ma, Ines Prsana Balangue-Tarriela
JPGU-AGU 2020 (Online) 2020.07 - 2020.07 JpGU-AGU
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Petrological and geochemical analysis on non-juvenile lithics from phreatic/hydrothermal eruptions
Tsukasa Ohba, Takumi Imura, Syahreza Angkasa, Yusuke Minami [Invited]
International Workshop on the mechanism of Phreatic Eruption (箱根町) 2020.01 - 2020.01 神奈川県温泉地学研究所
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The 2.5 ka eruption accompanying the sector collapse at Chokai volcano
Ohba Tsukasa, Nakagawa Mitsuhiro, Hayashi Shintaro, Kondo Keita, Endo Masahiro, Hara Yuto, Kawai Kojiro, Ban Masao, Imura Takumi, Minami Yusuke
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2020 - 2020 The Volcanological Society of Japan
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Stratigraphy and Componentry Analysis of the Proximal V olcanic Succession of Tangkuban Parahu V olcano, West Java, Indonesia
Syahreza Angkasa, Tsukasa Ohba, Takumi Imura
2019.09 - 2019.09
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Stratigraphy and petrologic characteristics of eruption rocks in West Chokai caldera, Chokai volcano
Kujime Kosuke, Ban Masao, Hayashi Shintaro, Ohba Tsukasa
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2019 - 2019 The Volcanological Society of Japan
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Craters discovered from the northwest coast of Lake Chokai, western part of Chokai volcano
Hayashi Shintaro, Ban Masao, Ohba Tsukasa
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2019 - 2019 The Volcanological Society of Japan
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吾妻―浄土平火山噴出物に含まれる非本質火山灰の岩石学的特徴
井村 匠・大場 司・堀越賢太
日本火山学会2018年度秋季大会 (秋田大学) 2018.09 - 2018.09 日本火山学会