研究者詳細 - 折橋　裕二

論文 - 折橋　裕二

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The Chicxulub impact signature in East Asia

Hayu Ota, Junichiro Kuroda, Keiichi Hayashi, Hiroyuki Hoshi, Ken Sawada, Kohei Hosogaya, Hiroshi Nishi, Akira Ishikawa, Katsuhiko Suzuki, Masashi A. Ikeda, Yuji Orihashi, Mark Schmitz, Babu Ram Gyawali, Hironao Matsumoto, Reishi Takashima

Communications Earth & Environment 7 ( 1 ) 2026年05月

青森県津軽南西岸域，中部中新統十二湖凝灰岩の産状とジルコンU–Pb年代

金指由維, 折橋裕二, 仁木創太, 岩野英樹, 佐々木実, 平田岳史

地質学雑誌 131 ( 1 ) 489 - 506 2025年12月

中部地方，設楽地域の苦鉄質～中間質火山岩の全岩化学組成（予備報告）

新正裕尚・折橋裕二

東京経済大学人文自然科学論集 157 101 - 111 2025年12月

青森県下北半島, 野平カルデラ内に充填する火山砕屑岩（半太郎沢層）のジルコンのフィッション・トラックとU–Pbダブル年代測定

盛合秀, 折橋裕二, 岩野英樹, 梅田浩司, 天野格, 佐々木実, 仁木創太, 平田岳史

地質学雑誌 131 ( 1 ) 409 - 422 2025年12月

下北半島北西部に分布する易国間層材木川部層の地質年代

根本直樹, 石川創士, 嶋田智恵子, 折橋裕二

地球科学 2025年07月

The first evidence of the lower Cretaceous Weissert Event in NW Panthalassa: carbon isotope stratigraphy and U-Pb radiometric ages of the Soma-Nakamura Group in NE Japan

T. Tomaru, R. Takashima, Y. Orihashi, T. Yamanaka, H. Ando, Y .Asahara, H. Nishi, A. Kuroyanagi, T. Otsubo

Newsletters on Stratigraphy 2025年06月

Mesoproterozoic depleted spinel peridotites metasomatized by high-K hydrous melt in the Patagonian back-arc

Aline Alves dos Santos, Tiago Jalowitzki, Fernanda Gervasoni, Maurizio Mazzucchelli, Tommaso Giovanardi, Manuel Enrique Schilling, Maria Isabel Varas-Reus, Yuji Orihashi, Rodrigo Freitas Rodrigues, Richard Walter Carlson, Georgina Marianela Rubiano Lorenzoni, Daiji Hirata, Gustavo Walter Bertotto

Chemical Geology 670 2024年12月

Pristine helium from the Karoo mantle plume within the shallow asthenosphere beneath Patagonia.

Jalowitzki T, Sumino H, Conceição RV, Schilling ME, Bertotto GW, Tassara A, Gervasoni F, Orihashi Y, Nagao K, Rocha MP, Rodrigues RAF

Nature communications 15 ( 1 ) 6402 2024年07月

青森県,下北半島西部に分布する新第三紀珪長質火山岩類年代層序の再検討と仏ヶ浦カルデラの提唱

盛合　秀・折橋裕二・佐々木実・沼田翔伍・仁木創太・浅沼　尚・淺原良浩・平田岳史

地質学雑誌 130 ( 1 ) 2024年05月

環状列石構成礫の石材および供給源

丸山哲弥・佐々木実・折橋裕二

酪農(３)遺跡ー国道279号むつ南バイパス道路改築事業に伴う遺跡発掘調査報告書２部冊 ( 第４章第９節 ) 204 - 221 2024年02月

Rapid growth and catastrophic destruction events of Planchón Volcano, Southern Andes

José Antonio Naranjo, Jorge Romero, Juan Pablo Contreras, Yuji Orihashi, Kevin Scott, Miguel Haller, Hirochika Sumino

Volcanica 7 ( 1 ) 21 - 49 2024年01月

Geochronological and petrological investigations of Miocene felsic igneous rocks in the Amakusa Islands, southwest Japan: Possible extension of the Setouchi Volcanic Belt

Hironao Shinjoe, Yuji Orihashi, Mana Akasaka, Sota Niki, Minoru Sasaki, Takafumi Hirata

Island Arc 2024年01月

中部地方，設楽地域の津具火山岩類の全岩化学組成（予報）

新正裕尚, 折橋裕二

東京経済大学人文自然科学論集 153 65 - 75 2023年12月

Central vs. lateral growth and evolution of the < 100 ka Peinado composite volcano, southern Central Volcanic Zone of the Andes

Pablo Grosse, Silvina R. Guzmán, François Nauret, Yuji Orihashi and Hirochika Sumino

Journal of Volcanology and Geothermal Research 2022年05月

A cold seep triggered by a hot ridge subduction.

Villar-Muñoz L, Kinoshita M, Bento JP, Vargas-Cordero I, Contreras-Reyes E, Tinivella U, Giustiniani M, Abe N, Anma R, Orihashi Y, Iwamori H, Nishikawa T, Veloso EA, Haraguchi S

Scientific reports 11 ( 1 ) 20923 2021年10月

四国西部中新統久万層群の酸性凝灰岩のジルコンU-Pb年代

新正裕尚, 折橋裕二

地質学雑誌 127 ( 10 ) 595 - 603 2021年10月

青森県南部，湯ノ沢カルデラ噴出物である尾開山凝灰岩の高精度・高確度噴出年代の決定：同一ジルコンU-Pb年代とフィッション・トラック年代のダブル年代測定

田口春那, 折橋裕二, 佐々木実, 宮嶋佑典, 岩野英樹, 平田岳史

地質学雑誌 127 ( 9 ) 545 - 561 2021年09月

青森県南部，碇ヶ関カルデラ主要構成噴出物（虹貝凝灰岩）のジルコン LA-ICP-MS U-Pb 年代

相川裕貴 , 折橋裕二, 佐々木実 , 中尾魁史, 高久雄一

地質学雑誌 127 ( 7 ) 431 - 436 2021年07月

Single-pulse laser ablation–inductively coupled plasma–mass spectrometry U–Pb dating of thin zircon rims: An application to metamorphic rocks from Mount Everest, eastern Nepal

Iwano, H., T. Hirata, J. Hosoi, H. Sakai, Y. Orihashi and T. Danhara

Chemical Geology 559 119903 2021年01月

U–Pb ages of Miocene near-trench granitic rocks of the Southwest Japan arc: implications for magmatism related to hot subduction

Shinjoe, H., Y. Orihashi and R. Anma

Geological Magazine 1 - 25 2021年01月

Zircon U–Pb ages of Miocene granitic rocks in the Koshikijima Islands: Implications for Neogene tectonics in the Kyushu region, southwest Japan

Shinjoe, H., Y. Orihashi, S. Niki, A. Sato, M. Sasaki, T. Sumii and T. Hirata

Island Arc 30 ( 1 ) e12383 2021年01月

U-Pb dating of granitic cobble (dropstone) recovered from inner slope of the Chile Trench (48°S): Constraint for its provenance

Orihashi, Y., R. Anma, S. machida, M. Sasaki, K. Nakao, Y. Takaku and N. Abe

Geochemical Journal 54 195 - 201 2020年08月

Identiﬁcation of the source caldera for a Pliocene ash-ﬂow tuff in Northeast Japan based on apatite trace-element compositions and zircon U-Pb ages

Takashima, R., H. Kusakawa, S. Kuwahara, Y. Orihashi, H. Nishi, M. Niwano and Yoshida

Journal of Volcanology and Geothermal Research 401 106948 2020年06月

Geomorphology, morphometry, spatial distribution and ages of maﬁc monogenetic volcanoes of the Peinado and Incahuasi ﬁelds, southernmost Central Volcanic Zone of the Andes

Grosse, P., M. L. Ochi Ramacciotti, F. E. Fochi, S. Guzmán, Y. Orihashi, H. Sumino

Journal of Volcanology and Geothermal Research 401 106966 2020年06月

Improved method for highly precise and accurate 182W/184W isotope measurements by multiple collector inductively coupled plasma mass spectrometry and application for terrestrial samples

Takamasa, A., K. Suzuki, Y. Fukami, T. Iizuka, M. L. G. Tejada, W. Fujisaki, Y. Orihashi and T. Matsumoto

Geochemical Journal 54 117 - 127 2020年06月

Detrital zircon geochronology of the Cretaceous Sindong Group, Gyeongsang Basin, Korea and its implications for paleodrainage systems

Taejin Choi, Yong Il Lee, Hyoun Soo Lim, and Yuji Orihashi

Episodes 43 ( 1 ) 2020年02月

Volcanology and geochronology of very long Neogene-Quaternary basaltic flows from southwest Payenia, central-west Argentina

Bernadi, M.I., G. Bertotto, Y. Orihashi, H. Sumino and A.D. Ponce

Andean Geology 46 ( 3 ) 490 - 525 2019年09月

New constraints about the volcanic activity at Sierra del Nevado, northern Payenia, Mendoza

Rubiano Lorenzoni G.M., Orihashi Y., Bertotto G.W., Ponce A.D., Sumino H., Bernardi M.I., Jalowitzki T.L.R., Hirata D.

XIII Congreso de Mineralogía, Petrología Ígnea y Metamórfica, y Metalogénesis. Proceedings 183 - 184 2019年08月

Pleistocene alkaline basalts with arc signatures in the eastern piedmont of Sierra del Nevado, Mendoza

Rubiano Lorenzoni G.M., Orihashi Y., Bertotto G.W., Ponce A.D., Bernardi M.I., Jalowitzki T.L.R., Hirata D., Zárate M.

XIII Congreso de Mineralogía, Petrología Ígnea y Metamórfica, y Metalogénesis. Proceedings 181 - 182 2019年08月

Establishment of Upper Cretaceous bio- and carbon isotope stratigraphy in the northwest Pacific Ocean and radiometric ages around the Albian/Cenomanian, Coniacian/Santonian and Santonian/Campanian boundaries.

Takashima, R., Nishi, H., Yamanaka, T., Orihashi, Y., Tsujino, Y., Quidelleur, X., Hayashi, K., Sawada, K., Nakamura, H., Ando, T.

Newsletters on Stratigraphy 52/3 341 - 376 2019年06月

Preliminary tephrochronological study of the Yezo Group (uppermost Albian–basal Campanian) in north Japan

Kuwahara, S., R. Takashima, Y. Orihashi, H. Eshi, T. Sato and K. Hayashi

Cretaceous Research 103 104158 2019年06月

Volcanology and inflation structures of an extensive basaltic lava flow in the Payenia Volcanic Province, extra-Andean back arc of Argentina

Bernadi, M.I., Bertotto, G.W., Ponce, A.D., Orihashi, Y. and Sumino, H.

Andean Geology 46 ( 2 ) 279 - 299 2019年05月

Constraining the depositional age of an Upper Cretaceous non-marine and shallow marine siliciclastic succession, Kuji Group, northeastern Japan, based on carbon isotope stratigraphy and U−Pb radiometric dating

Arimoto, J., R. Takashima, H. Nishi, T. Yamanaka, ¥. Orihashi, S. Jo, K. Yamamoto, K. Uematsu

Cretaceous Research 92 264 - 278 2018年12月

Material recycling in a sediment‐starved trench recorded in the Early Cretaceous Shiriya accretionary complex, Northeast Japan

Ueda, H., S. Kimura, T. Saito, Y. Takano, N. Iizuka, Y. Orihashi

Island Arc 2018年10月

岐阜県可児盆地に分布する蜂屋層最下部栃洞溶結凝灰岩部層のジルコンU-Pb年代

新正裕尚, 古川邦之, 折橋裕二, 外西奈津美, 和田穣隆

地質学雑誌 124 ( 7 ) 533 - 538 2018年07月

ホウ素含有量から見た,若い海洋プレート沈み込みに伴う火成活動 : 南米アンデス弧と中新世西南日本弧の例

新正裕尚, 折橋裕二

月刊地球 = Chikyu monthly : カラー版 40 ( 5 ) 272 - 279 2018年05月

Eruptive history of Incahuasi, Falso Azufre and El Cóndor Quaternary composite volcanoes, southern Central Andes

Grosse, P., Y. Orihashi, S.R. Guzman, H. Sumino, K. Nagao

Bulletin of Volcanology 2018年05月

The role of subducted Aluk plate beneath Chilean Patagonia during Paleocene-Eocene: mixing between depleted mantle peridotite and slab-derived components in the mantle wedge

Jalowitzki, T., F. Gervasoni, R. V. Conceição, Y. Orihashi, G. W. Bertotto, H. Sumino, M. Schilling, K. Nagao, D. Morata and P. Sylvester

Lithos 292-3 179 - 197 2017年11月

Slab-derived components in the subcontinental lithospheric mantle beneath Chilean Patagonia: Geochemistry and Sr–Nd–Pb isotopes of mantle xenoliths and host basalt

Tiago Jalowitzki, Fernanda Gervasoni, Rommulo V. Conceição, Yuji Orihashi, Gustavo W. Bertotto, Hirochika Sumino, Manuel E. Schilling, Keisuke Nagao, Diego Morata, Diego Morata, Paul Sylvester

Lithos 292 179 - 197 2017年11月

Evidence of a modern deep-water magmatic hydrothermal system in the Canary Basin (Eastern Centrak Atlantic Ocean)

Medialdea, T., L. Somoza, F.J. Gonzalez, J.T. Vazquez, C. de Ignacio, H. Sumino, O. Sanchez-Guillamon, Y. Orihashi, R. Leon and D. Palomino

Geochemistry, Geophysics, Geosystems 2017年08月

九州東部大野火山岩類のジルコンU-Pb年代

新正裕尚, 折橋裕二

地質学雑誌 123 ( 6 ) 423 - 431 2017年06月

「点と線」に注目した沈み込み帯の火山とテクトニクス

市原美恵, ADAM Claudia, VIDAL Valerie, GROSSE Pablo, 三部賢治, 折橋裕二

地學雜誌 126 ( 2 ) 181 - 193 2017年04月

The tectonic setting of the eastern margin of the Sino-Korean Block inferred from detrital zircon U–Pb age and Nd isotope composition of the Pyeongan Supergroup (upper Palaeozoic – Lower Triassic), Korea

Kim, M.G., Y.I Lee, T. Choi, Y. Orihashi

Geological Magazine 156 ( 3 ) 471 - 484 2017年03月

U-Pb age determination for zircons using a laser ablation–ICP–mass spectrometry equipped with six multiple-ion counting detectors

Hattori, K., S. Sakata, M. Tanaka, Y. Orihashi and T. Hirata

Journal of Analytical Atomic Spectrometry 32 88 - 95 2017年01月

U-Pb age determination for zircons using laser ablation-ICP-mass spectrometry equipped with six multiple-ion counting detectors

Kentaro Hattori, Shuhei Sakata, Michitaka Tanaka, Yuji Orihashi, Takafumi Hirata

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 32 ( 1 ) 88 - 95 2017年01月

Chemical characteristics of major and trace elements of Sierra Cuadrado Formation at Peseta del Canquel

Massaferro, G.I., Y. Orihashi, V. Alric, T. Jalowitzki and D. Hirata

Proceedings of XX Congreso Geologico Argentino 4 69 - 74 2017年

Noble gas composition of subcontinental lithospheric mantle: an extensively degassed reservoir beneath southern Patagonia

Jalowitzki, T., H. Sumino, R. V. Conceição, Y. Orihashi, K. Nagao, G.W. Bertotto, E. Balbinot, M. Schilling and F. Gervasoni

Earth and Planetary Science Letters 450 263 - 273 2016年09月

Crustal growth history of the Korean Peninsula: Constraints from detrital zircon ages in modern river sediments

Choi, T., Y.-I. Lee and Y. Orihashi

Geoscience Frontiers 7 707 - 714 2016年09月

Age and petrogenesis of Na-rich felsic rocks in western Iran: Evidence for closure of the southern branch of the Neo-Tethys in the Late Cretaceous

Nouri, F., H. Azizi, J. Goloka, Y. Sahara, Y. Orihashi, K. Yamamoto, M Tsuboi and R. Anma

Tectonophysics 671 151 - 172 2016年03月

Detrital zircon geochronology and Nd isotope geochemistry of the basal succession of the Taebaeksan Basin, South Korea: Implications for the Gondwana linkage of the Sino-Korean (North China) block during the Neoproterozoic–early Cambrian

Lee, Y.-I., T. Choi, H.-S. Lim and Y. Orihashi

Palaeogeography, Palaeoclimatology, Palaeoecology 441 770 - 786 2016年01月

Age of Mirny field kimberlites (Siberia) and application of rutile and titanite for U-Pb dating of kimberlite emplacement by LA-ICP-MS

Agashev, A. M., Y. Orihashi, N. P. Pokhilenko, I. V. Serov, A. V. Tolstov and S. Nakai

Geochemical Journal 50 431 - 438 2016年01月

Petrography and geochemistry of Toscales basaltic eruptive center. Extra-Andean back-arc zone of Mendoza province

Bertotto, G.W., M.H. Hitch, A. D. Ponce, Y. Orihashi and H. Sumino

Revista de la Asociacion Geologica Argentina 73 330 - 340 2016年01月

Yong Ii Lee, Taejin Choi, Hyoun Soo Lim, Yuji Orihashi

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 441 770 - 786 2016年01月

讃岐平野の瀬戸内珪長質火山岩の全岩化学組成

新正裕尚, 折橋裕二, 角井朝昭

東京経済大学人文自然科学論集 ( 139 ) 21 - 31 2016年

九州東部大野火山岩類の全岩化学組成(補遺)

新正裕尚, 折橋裕二, 外西奈津美

東京経済大学人文自然科学論集 ( 138 ) 91 - 98 2016年

The Taitao ophiolite-granite complex, Chile: Emplacement of ridge-trench intersection oceanic lithosphere on land and the origin of calc-alikalline I-type granites

Ki-Cheol Shin, Ryo Anma, Takanori Nakano, Yuji Orihashi, Shin-ichi Ike

EPISODES 38 ( 4 ) 283 - 297 2015年12月

Cretaceous granitoids and their zircon U-Pb ages across the south-central part of the Abukuma Highland, Japan

Shunso Ishihara, Yuji Orihashi

ISLAND ARC 24 ( 2 ) 159 - 168 2015年06月

Tectonic reconstruction of batholith formation based on the spatiotemporal distribution of Cretaceous-Paleogene granitic rocks in southwestern Japan

Kazuya Iida, Hikaru Iwamori, Yuji Orihashi, Taeho Park, Yong-Joo Jwa, Sung-Tack Kwon, Tohru Danhara, Hideki Iwano

ISLAND ARC 24 ( 2 ) 205 - 220 2015年06月

Sr-Nd-Pb-Hf isotopic constraints on the diversity of magma sources beneath the Aden Ridge (central Gulf of Aden) and plume-ridge interaction

Ryuichi Shinjo, Daniel Meshesha, Yuji Orihashi, Satoru Haraguchi, Kensaku Tamaki

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES 110 ( 3 ) 97 - 110 2015年06月

Volcano-ice-sea interaction in the Cerro Santa Marta area, northwest James Ross Island, Antarctic Peninsula

Fernando M. Calabozo, Jorge A. Strelin, Yuji Orihashi, Hirochika Sumino, Randall A. Keller

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 297 89 - 108 2015年05月

Emplacement history and inflation evidence of a long basaltic lava flow located in Southern Payenia Volcanic Province, Argentina

Mauro I. Bernardi, Gustavo W. Bertotto, Tiago L. R. Jalowitzki, Yuji Orihashi, Alexis D. Ponce

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 293 46 - 56 2015年02月

213 nm Nd: YAGレーザーアブレーション誘導結合プラズマ質量分析計を用いたジルコンのU–Pb年代測定: Pb/U分別補正にNIST SRM 610を用いるための分析条件最適化

高地吉一, 折橋裕二, 小原北士, 藤本辰弥, 春田泰宏, 山本鋼志

地球化学 49 ( 1 ) 19 - 35 2015年

Finding of 115 Ma adakitic tonalite east of the Futaba Fault, Abukuma Highland, and its regional geological implications

Orihashi Yuji, Ishihara Shunso

地質学雑誌 121 ( 5 ) 167 - 171 2015年

無機質量分析計を用いた元素イメージング

平田岳史, 折橋裕二, 鈴木敏弘, 坂田周平, 槇納好岐, 小原聖也, 向山翔, 服部健太郎, 杉浦悠毅, WALCZYK Thomas, 昆慶明

質量分析 63 ( 6 ) 153 - 158 2015年

213 nm Nd: YAG レーザーアブレーション誘導結合プラズマ質量分析計を用いたジルコンのU-Pb年代測定：Pb/U分別補正にNIST SRM610を用いるための分析条件の最適化

折橋裕二

地球化学 49 19 - 35 2015年

Geochemical and Sr-Nd-Pb isotopic compositions of lithospheric mantle: Spinet lherzolites in alkaline basalts from the northwestern Ethiopian plateau

Daniel Meshesha, Ryuichi Shinjo, Yuji Orihashi

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES 109 ( 6 ) 241 - 257 2014年12月

U-Pb Age of Rutile from the Eclogite Xenolith of the Udachnaya Kimberlite Pipe

A. L. Ragozin, D. A. Zedgenizov, V. S. Shatskii, Y. Orihashi, A. M. Agashev, H. Kagi

DOKLADY EARTH SCIENCES 457 ( 1 ) 861 - 864 2014年07月

The age of Udachnaya-East kimberlite: U/Pb and Ar-40/Ar-39 data

D. S. Yudin, A. A. Tomilenko, A. V. Travin, A. M. Agashev, N. P. Pokhilenko, Yu Orihashi

DOKLADY EARTH SCIENCES 455 ( 1 ) 288 - 290 2014年03月

Petrogenetic evolution of basaltic lavas from Balhaf-Bir Ali Plio-Quaternary volcanic field, Arabian Sea, Republic of Yemen

Mohamed T. S. Heikal, El-Metwally M. Lebda, Yuji Orihashi, Abdalmenam Habtoor

ARABIAN JOURNAL OF GEOSCIENCES 7 ( 1 ) 69 - 86 2014年01月

Regional mantle heterogeneity regulates melt production along the Réunion hotspot-influenced Central Indian Ridge

Shiki Machida, Shiki Machida, Yuji Orihashi, Marco Magnani, Marco Magnani, Natsuki Neo, Samantha Wilson, Masaharu Tanimizu, Shigekazu Yoneda, Atsushi Yasuda, Kensaku Tamaki

Geochemical Journal 48 ( 5 ) 433 - 449 2014年

U-Pb zircon age from the radiolarian-bearing Hitoegane Formation in the Hida Gaien Belt, Japan

Manchuk Nuramkhaan, Toshiyuki Kurihara, Kazuhiro Tsukada, Yoshikazu Kochi, Hokuto Obara, Tatsuya Fujimoto, Yuji Orihashi, Koshi Yamamoto

ISLAND ARC 22 ( 4 ) 494 - 507 2013年12月

An inter-laboratory evaluation of OD-3 zircon for use as a secondary U-Pb dating standard

Hideki Iwano, Yuji Orihashi, Takafumi Hirata, Masatsugu Ogasawara, Tohru Danhara, Kenji Horie, Noriko Hasebe, Shigeru Sueoka, Akihiro Tamura, Yasutaka Hayasaka, Aya Katsube, Hisatoshi Ito, Kenichiro Tani, Jun-Ichi Kimura, Qing Chang, Yoshikazu Kouchi, Yasuhiro Haruta, Koshi Yamamoto

ISLAND ARC 22 ( 3 ) 382 - 394 2013年09月

Zircon multichronology: Fission-track, U-Pb, and combined fission-track-U-Pb studies

H. Iwano, Y. Orihashi, M. Ogasawara, T. Hirata

Island Arc 22 ( 3 ) 261 - 263 2013年09月

The provenance of the southeastern Yellow Sea sediments constrained by detrital zircon U-Pb age

Taejin Choi, Yong Il Lee, Yuji Orihashi, Hi-Il Yi

MARINE GEOLOGY 337 182 - 194 2013年03月

Evidence for late permian-triassic volcanism in the hida gaien belt, Southwest Japan: New U-Pb ages from the motodo, Ashidani, and Otani formations

Yuta Kawagoe, Norimichi Mori, Shin ichi Sano, Yuji Orihashi, Koshi Yamamoto, Yasuo Ishizaki, Yoshikazu Kouchi, Shigeru Otoh

Memoir of the Fukui Prefectural Dinosaur Museum 17 - 33 2013年01月

Boron and other trace element constraints on the slab-derived component in Quaternary volcanic rocks from the Southern Volcanic Zone of the Andes

Hironao Shinjoe, Yuji Orihashi, Jose A. Naranjo, Daiji Hirata, Toshiaki Hasenaka, Takaaki Fukuoka, Takashi Sano, Ryo Anma

GEOCHEMICAL JOURNAL 47 ( 2 ) 185 - 199 2013年

Shallow-depth melt eduction due to ridge subduction: LA-ICPMS U-Pb igneous and detrital zircon ages from the Chile Triple Junction and the Taitao Peninsula, Chilean Patagonia

Ryo Anma, Yuji Orihashi

GEOCHEMICAL JOURNAL 47 ( 2 ) 149 - 165 2013年

Evolution history of the crust underlying Cerro Pampa, Argentine Patagonia: Constraint from LA-ICPMS U-Pb ages for exotic zircons in the Mid-Miocene adakite

Yuji Orihashi, Ryo Anma, Akihisa Motoki, Miguel J. Haller, Daiji Hirata, Hideki Iwano, Hirochika Sumino, Victor A. Ramos

Geochemical Journal 47 ( 2 ) 235 - 247 2013年

足尾流紋岩質火砕岩類のジルコンU-Pb 年代と全岩K-Ar年代

石原舜三, 折橋裕二

資源地質 63 ( 3 ) 149 - 152 2013年

Detrital zircon U-Pb ages of the Jangsan Formation in the northeastern Okcheon belt, Korea and its implications for material source, provenance, and tectonic setting

Yong Il Lee, Taejin Choi, Hyoun Soo Lim, Yuji Orihashi

SEDIMENTARY GEOLOGY 282 256 - 267 2012年12月

Heterogeneities of subcontinental lithospheric mantle at the southernmost of South-American plate: Influence of present subduction and lithosphere-astenosphere interactions under the Pali Aike volcanic field

Fernanda Gervasoni, Rommulo Vieira Conceição, Tiago Luís, Reis Jalowitzki, Manuel Enrique Schilling, Yuji Orihashi, Shun'ichi Nakai, Paul Sylvester

Pesquisas em Geociencias 39 269 - 285 2012年09月

Early Paleozoic magmatism in the Bumbat-Hairhan area of the Lake Zone in western Mongolia (geological, petrochemical, and geochronological data)

S. N. Rudnev, A. E. Izokh, A. S. Borisenko, R. A. Shelepaev, Y. Orihashi, K. V. Lobanov, A. V. Vishnevsky

RUSSIAN GEOLOGY AND GEOPHYSICS 53 ( 5 ) 425 - 441 2012年05月

Mesozoic detrital zircon U-Pb ages of modern river sediments in Korea: implications for migration of arc magmatism in the Mesozoic East Asian continental margin

Taejin Choi, Yong Il Lee, Yuji Orihashi

TERRA NOVA 24 ( 2 ) 156 - 165 2012年04月

Discovery of new hydrothermal activity and chemosynthetic fauna on the Central Indian ridge at 18°-20°S

Kentaro Nakamura, Hiromi Watanabe, Junichi Miyazaki, Junichi Miyazaki, Ken Takai, Ken Takai, Shinsuke Kawagucci, Takuro Noguchi, Suguru Nemoto, Tomo o. Watsuji, Takuya Matsuzaki, Takazo Shibuya, Kei Okamura, Masashi Mochizuki, Yuji Orihashi, Tamaki Ura, Akira Asada, Daniel Marie, Meera Koonjul, Manvendra Singh, Girish Beedessee, Mitrasen Bhikajee, Kensaku Tamaki

PLoS ONE 7 ( 3 ) e32965 2012年03月

Permian Peri-glacial Deposits from Central Mongolia in Central Asian Orogenic Belt: A Possible Indicator of the Capitanian Cooling Event

Tatsuya Fujimoto, Shigeru Otoh, Yuji Orihashi, Takafumi Hirata, Takaomi D. Yokoyama, Masanori Shimojo, Yoshikazu Kouchi, Hokuto Obara, Yasuo Ishizaki, Kazuhiro Tsukada, Toshiyuki Kurihara, Manchuk Nuramkhan, Sersmaa Gonchigdorj

RESOURCE GEOLOGY 62 ( 4 ) 408 - 422 2012年

同一ジルコン結晶を用いたフィッション・トラックとU-Pbダブル年代測定法の評価:−島根県川本花崗閃緑岩中の均質ジルコンを用いて−

岩野英樹, 折橋裕二, 檀原徹, 平田岳史, 小笠原正継

地質学雑誌 118 ( 6 ) 365 - 375 2012年

Origin of zircon in jadeitite from the Nishisonogi metamorphic rocks, Kyushu, Japan

Y. Mori, Y. Orihashi, T. Miyamoto, K. Shimada, M. Shigeno, T. Nishiyama

JOURNAL OF METAMORPHIC GEOLOGY 29 ( 6 ) 673 - 684 2011年08月

九州西端部からの四万十高圧変成岩類の発見

高地吉一, 折橋裕二, 小原北士, 宮田和周, 下條将徳, 大藤茂, 青山正嗣, 赤堀良光, 柳井修一

地學雜誌 120 ( 1 ) 30 - 39 2011年02月

Compositional variations revealed by ASTER image analysis of the Viedma Volcano, southern Andes Volcanic Zone

Chiaki Kobayashi, Yuji Orihashi, Daiji Hiarata, José A. Naranjo, Makoto Kobayashi, Ryo Anma

Andean Geology 37 433 - 441 2010年12月

Geochemical evolution of peridotites and pyroxenites from the subcontinental lithospheric mantle of the Agua Poca volcano, Cuyania Terrane, Argentina

Tiago Luis, Reis Jalowitzki, Rommulo Vieira Conceição, Yuji Orihashi, Gustavo Walter Bertotto, Shun'ichi Nakai, Manuel Enrique Schilling

Pesquisas em Geociencias 37 143 - 167 2010年12月

Detrital zircon geochronology of the Cretaceous Sindong Group, Southeast Korea: Implications for depositional age and Early Cretaceous igneous activity

Yong Il Lee, Taejin Choi, Hyoun Soo Lim, Yuji Orihashi

ISLAND ARC 19 ( 4 ) 647 - 658 2010年12月

Neoarchean-Paleoproterozoic stratigraphy of the Dhanjori basin, Singhbhum Craton, Eastern India: And recording of a few U-Pb zircon dates from its basal part

S. K. Acharyya, Anupendu Gupta, Y. Orihashi

JOURNAL OF ASIAN EARTH SCIENCES 39 ( 6 ) 527 - 536 2010年11月

Two types of adakites revealed by ^<238>U-^<230>Th disequilibrium from Daisen Volcano, southwestern Japan

Tokunaga Saimi, Nakai Shun'ichi, Orihashi Yuji

Geochemical journal : journal of the Geochemical Society of Japan 44 ( 5 ) 379 - 386 2010年10月

U-Pb zircon ages of syenitic and granitic rocks in the Ashizuri igneous complex, southwestern Shikoku : Constraint for the origin of forearc alkaline magmatism

Shinjoe Hironao, Orihashi Yuji, Sumii Tomoaki

Geochemical journal : journal of the Geochemical Society of Japan 44 ( 4 ) 275 - 283 2010年08月

New U-Pb zircon ages from Paleo-Mesoarchean TTG gneisses of the Singhbhum Craton, Eastern India

Acharyya Subhrangsu Kanta, Gupta Anupendu, Orihashi Yuji

Geochemical journal : journal of the Geochemical Society of Japan 44 ( 2 ) 81 - 88 2010年04月

奈良盆地周縁部の玉手山凝灰岩・石仏凝灰岩の火山ガラスおよび全岩の化学組成

新正裕尚, 岩野英樹, 和田穣隆, 折橋裕二, 角井朝昭, 檀原徹

地質学雑誌 116 ( 8 ) 447 - 452 2010年

Are the Taitao granites formed due to subduction of the Chile ridge?

Ryo Anma, Richard Armstrong, Yuji Orihashi, Shin-ichi Ike, Ki-Cheol Shin, Yoshiaki Kon, Tsuyoshi Komiya, Tsutomu Ota, Shin-ichi Kagashima, Takazo Shibuya, Shinji Yamamoto, Eugenio E. Veloso, Mark Fanning, Francisco Herve

LITHOS 113 ( 1-2 ) 246 - 258 2009年11月

Paleozoic U-Pb age of rutile inclusions in diamonds of the V-VII variety from placers of the northeast Siberian platform

V. P. Afanasyev, A. M. Agashev, Y. Orihashi, N. P. Pokhilenko, N. V. Sobolev

DOKLADY EARTH SCIENCES 428 ( 1 ) 1151 - 1155 2009年10月

Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting

Folguera A, Naranjo J.A, Orihashi Y, Sumino H, Nagao K, Polanco E, Ramos V.A

Journal of Volcanology and Geothermal Research 186 ( 3-4 ) 169 - 185 2009年10月

Eruption age of the Kusandong Tuff in the Cretaceous Gyeongsang Basin, Korea

Yong-Joo Jwa, Yong Il Lee, Yuji Orihashi

GEOSCIENCES JOURNAL 13 ( 3 ) 265 - 273 2009年09月

Detrital zircon evidence for the antiquity of Taiwan

Ching-Ying Lan, Tadashi Usuki, Kuo-Lung Wang, Tzen-Fu Yui, Kazuaki Okamoto, Yuan-Hsi Lee, Takafumi Hirata, Yoshitaka Kon, Yuji Orihashi, Juhn G. Liou, Chun-Sun Lee

GEOSCIENCES JOURNAL 13 ( 3 ) 233 - 243 2009年09月

Geochemical variation of fresh quenched glass in axial MORB along 15-18 degrees S, Central Indian Ridge

Y. Orihashi, M. Magnani, S. Machida, N. Neo, A. Yasuda, K. Tamaki

GEOCHIMICA ET COSMOCHIMICA ACTA 73 ( 13 ) A975 - A975 2009年06月

Underplating of melange evidenced by the depositional ages : U-Pb dating of zircons from the Shimanto accretionary complex, southwest Japan

SHIBATA TADAHIRO, ORIHASHI YUJI, KIMURA GAKU, HASHIMOTO YOSHITAKA

The Island arc 17 ( 3 ) 376 - 393 2008年09月

Ages of zircons from Jurassic sediments of Bluefish River slope, NWT Canada, and the possible age of kimberlite activity on the Lena West property

A. M. Agashev, S. S. Kuligin, Y. Orihashi, N. P. Pokhilenko, M. A. Vavilov, D. Clarke

DOKLADY EARTH SCIENCES 421 ( 1 ) 751 - 754 2008年07月

Magmatic evolutioilt of the Quaternary volcanics from Hudson and Lautaro volcanoes, Austral Andean Cordillera

Y. Orihashi, S. Nakai, H. Shinjoe, J. A. Naranjo, A. Motoki

GEOCHIMICA ET COSMOCHIMICA ACTA 72 ( 12 ) A709 - A709 2008年07月

U-Pb Age Determination for Seven Standard Zircons using Inductively Coupled Plasma-Mass Spectrometry Coupled with Frequency Quintupled Nd-YAG (λ = 213nm) Laser Ablation System : Comparison with LA-ICP-MS Zircon Analyses with a NIST Glass Reference Material

Orihashi Yuji, Nakai Shun'ichi, Hirata Takafumi

Resource geology 58 ( 2 ) 101 - 123 2008年06月

Argon isotope ratio of the plume-source deduced from high-resolution stepwise crushing extraction

Matsumoto Takuya, Orihashi Yuji, Matsuda Jun-ichi, YAMAMOTO KOSHI

Geochemical journal : journal of the Geochemical Society of Japan 42 ( 1 ) 39 - 49 2008年02月

Sinking hot anomaly trapped at the 410 km discontinuity near the Honshu subduction zone, Japan

Satoru Honda, Manabu Morishige, Yuji Orihashi

Earth and Planetary Science Letters 261 ( 3-4 ) 565 - 577 2007年09月

Geochemistry of eclogites from the Dabie-Sulu terrane, eastern China: New insights into protoliths and trace element behaviour during UHP metamorphism

Hong-Feng Tang, Cong-Qiang Liu, Shun'ichi Nakai, Yuji Orihashi

LITHOS 95 ( 3-4 ) 441 - 457 2007年05月

Element partitioning between transition-zone minerals and ultramafic melt under hydrous conditions

Kenji Mibe, Yuji Orihashi, Shun'ichi Nakai, Toshitsugu Fujii

GEOPHYSICAL RESEARCH LETTERS 33 ( 16 ) 2006年08月

Evidence of primitive melt heterogeneities preserved in plagioclase-hosted melt inclusions of South Atlantic MORB

Magnani Marco, Fujii Toshitsugu, Orihashi Yuji, YASUDA ATSUSHI, HIRATA TAKAFUMI, SANTO ALBA P., VAGGELLI GLORIA

Geochemical journal : journal of the Geochemical Society of Japan 40 ( 3 ) 277 - 290 2006年06月

Zircon sensitive high mass-resolution ion microprobe U-Pb and fission-track ages for gabbros and sheeted dykes of the Taitao ophiolite, Southern Chile, and their tectonic implications

ANMA RYO, ARMSTRONG RICHARD, DANHARA TORU, ORIHASHI YUJI, IWANO HIDEKI

The Island arc 15 ( 1 ) 130 - 142 2006年03月

Geologic reconnaissance of Lautaro Volcano, Chilean Patagonia

A Motoki, Y Orihashi, JA Naranjo

REVISTA GEOLOGICA DE CHILE 33 ( 1 ) 177 - 187 2006年01月

パタゴニア氷原の基盤岩類の地質・年代・地形

安間, 了, 折橋裕二, 安仁屋政武

科学研究費補助金（基盤研究A ：課題番号 15253001: 南米パタゴニア氷原における完新世の環境変動の解明代表：安仁屋政武）研究成果報告書 113-127 2006年01月

Mantle wedge deformation by subducting and rotating slab and its possible implication

S. Honda, Y. Orihashi, K. Mibe, A. Motoki, H. Sumino, M. J. Haller

EARTH PLANETS AND SPACE 58 ( 8 ) 1087 - 1092 2006年

Geology of the summit limestone of Mount Qomolangma (Everest) and cooling history of the Yellow Band under the Qomolangma detachment

SAKAI HARUTAKA, SAWADA MINORU, TAKIGAMI YUTAKA, ORIHASHI YUJI, DANHARA TOHRU, IWANO HIDEKI, KUWAHARA YOSHIHIRO, DONG QI, CAI HUAWEI, LI JIANGUO

The Island arc 14 ( 4 ) 297 - 310 2005年12月

Reduction of mercury background on ICP-mass spectrometry for in situ U-Pb age determinations of zircon samples

T Hirata, T Iizuka, Y Orihashi

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 20 ( 8 ) 696 - 701 2005年

隠岐・島後で新たに発見された海成鮮新統"向ヶ丘層"

山内靖喜, 星野充孝, 折橋裕二, 村上久, 三瓶良和, 浜崎晃, 内田澄夫, 平井政継, 守岡康一, 朝倉隆之, 片山直樹

地球科学 59 ( 1 ) 35 - 48 2005年

Petrogenesis of tholeiitic lavas from the submarine Hana Ridge, Haleakala Volcano, Hawaii

ZY Ren, E Takahashi, Y Orihashi, KTM Johnson

JOURNAL OF PETROLOGY 45 ( 10 ) 2067 - 2099 2004年10月

レーザーアブレーション-誘導結合プラズマ質量分析法による地球化学試料の微量元素分析

平田岳史, 浅田陽一, TUNHENG Apinya, 大野剛, 飯塚毅, 早野由美子, 谷水雅治, 折橋裕二

分析化学 = Japan analyst 53 ( 6 ) 491 - 501 2004年06月

Quaternary volcanic activity of Hudson and Lautaro volcanoes, Chilean Patagonia: New constraints from K-Ar ages

Yuji Orihashi, José A. Naranjo, Akihisa Motoki, Hirochika Sumino, Daiji Hirata, Ryo Anma, Keisuke Nagao

Revista Geologica de Chile 31 ( 2 ) 207 - 224 2004年

岩脈中の花こう岩質包有物のジルコン U-Pb 年代から推定される奈良県吉野地域の中央構造線南方に伏在する中新世花こう岩質岩体

新正裕尚, 和田穣隆, 折橋裕二, 角井朝昭, 中井俊一

地質學雜誌 109 ( 12 ) 689 - 696 2003年12月

アデン湾, 東経46゜近傍のEタイプ中央海嶺玄武岩類の成因

折橋裕二, 原口悟, 石井輝秋, 玉木賢策, AL-KHIRBASH Salah

地學雜誌 112 ( 5 ) 732 - 749 2003年10月

Trace element analysis of zircon and garnet in Nijyo-san rhyolite, SW Japan by LA-ICP-MS

H Shinjoe, Y Orihashi, H Yoshida

GEOCHIMICA ET COSMOCHIMICA ACTA 67 ( 18 ) A432 - A432 2003年09月

Monogenic volcanoes of Patagonian back-arc province, southern Argentina

Motoki Akihisa, Orihashi Yuji, Hirata Daiji, Haller Miguel Jorge, Hosono Takahiro, Cario Felipe Dias, Schilling Manuel, Anma Ryo

地質學雜誌 109 ( 7 ) XIII - XIV 2003年07月

Rapid and simultaneous determination of multi-element abundances and U-Pb age for zircon crystal using UV laser ablation ICP-MS technique: critical evaluation of the technique with 91500 zircon standard

ORIHASHI Yuji, HIRATA Takafumi, TANI Kenichiro, YOSHIDA Hideto

Journal of mineralogical and petrological sciences 98 ( 3 ) 109 - 117 2003年06月

Rapid quantitative analysis of Y and REE abundances in XRF glass bead for selected GSJ reference rock standards using Nd-YAG 266 nm UV laser ablation ICP-MS

Orihashi Yuji, Hirata Takafumi

Geochemical journal : journal of the Geochemical Society of Japan 37 ( 3 ) 401 - 412 2003年06月

Geologic occurrence and recent eruptive materials of the Lautaro Volcano, Chilean Patagonia

Motoki Akihisa, Orihashi Yuji, Naranjo Jose Antonio, Hirata Daiji, Hosono Takahiro, Cario Felipe Dias, Anma Ryo

地質學雜誌 109 ( 5 ) IX - X 2003年05月

U-Pb dating for single grain zircon using laser ablation ICP massspectrometer and fission track ages of zircon for back-arc adakitic bodies, the Cerro Pampa and the Puesto Nuevo, Argentine Ptagonia.

Motoki;A, Orihashi;Y, Hirata;D, Haller;M.J, Ramos;V.A, Schilling;M, Iwano;H, Cario;F.D, Anma;R, 安間, 了

Short papers of IV South America Symposium on Isotope Geology 219-220 2003年01月

室生火砕流堆積物の全岩化学組成 : その給源への手掛り

新正裕尚, 折橋裕二, 角井朝昭, 中井俊一

岩石鉱物科学 31 ( 6 ) 307 - 317 2002年11月

パタゴニア南部、中期中新世アダカイトに含まれるジルコンの地球化学

折橋裕二, 元木昭寿, 平田大二, 太田努, ミジェールハラー, 吉田英人, 安間了

日本地球化学会年会要旨集 49 ( 0 ) 77 - 77 2002年

Primordial helium isotope signature from Plio-Quaternary alkaline basalts in Yemen

ORIHASHI YUJI, NAGAO KEISUKE, AL-JAILANI ASHRAF, HANAN BARRY B.

The Island arc 10 ( 2 ) 145 - 157 2001年06月

Rb-Sr and Sm-Nd isotopes in garnet pyroxenite xenoliths from Siberian Kimberlites: an insight into lithospheric mantle

AGASHEV Aleksey M., 渡辺暉夫, KULIGIN Sergey S., POKHILENKO Nikolai P., 折橋裕二

Journal of mineralogical and petrological sciences 96 ( 1 ) 7 - 18 2001年02月

JNdi-1: a neodymium isotopic reference in consistency with LaJolla neodymium

T Tanaka, S Togashi, H Kamioka, H Amakawa, H Kagami, T Hamamoto, M Yuhara, Y Orihashi, S Yoneda, H Shimizu, T Kunimaru, K Takahashi, T Yanagi, T Nakano, H Fujimaki, R Shinjo, Y Asahara, M Tanimizu, C Dragusanu

CHEMICAL GEOLOGY 168 ( 3-4 ) 279 - 281 2000年08月

西南日本外帯，中期中新世花こう岩類のジルコンのREE組成とマグマ成因 -スラブ溶融の可能性について-

折橋裕二, 稲垣賢一, 平田岳史, 安間了, 平田大二, 安間, 了

月刊地球号外 30 14-21 2000年01月

Isotope-geochemical features of the Siberian-Platform kimberlites in connection with the problem of their origin

AM Agashev, Y Orihashi, T Watanabe, NP Pokhilenko, VP Serenko

GEOLOGIYA I GEOFIZIKA 41 ( 1 ) 90 - 99 2000年

Petrology of a mantle-derived rhyolite, Hokkaido, Japan

T Takagi, Y Orihashi, K Naito, Y Watanabe

CHEMICAL GEOLOGY 160 ( 4 ) 425 - 445 1999年09月

Latest Neoproterozoic Gondwana eastern margin

T Watanabe, Y Orihashi, CM Fanning

GONDWANA RESEARCH 2 ( 2 ) 291 - 293 1999年04月

Sr and Nd isotopic data for the seven GSJ rock reference samples : JA-1, JB-1a, JB-2, JB-3, JG-1a, JGb-1, and JR-1

Orihashi Yuji, Maeda Jinichiro, Tanaka Ryoji, ZENIYA Ryoichi, NIIDA Kiyoaki

Geochemical journal : journal of the Geochemical Society of Japan 32 ( 3 ) 205 - 211 1998年06月

Dispersion of the Afar plume: Implications from the spatiotemporal distribution of the late Miocene to recent volcanics, southwestern Arabian Peninsula

Y Orihashi, A Al-Jailani, K Nagao

GONDWANA RESEARCH 1 ( 2 ) 221 - 234 1998年01月

中国雲南省Tengchong地域の若い火山岩のK-Ar年代測定

中井俊一, 徐勝, 脇田宏, 藤井直之, 長尾敬介, 折橋裕二, 王先彬, 陳踐発, 廖志杰

火山 38 ( 5 ) 167 - 171 1993年

Geology of the Sinda-Mohari Region, Haut-Zaire Province, Eastern Zaire

Takeishi MAKINOUCHI, Shiro ISHIDA, Yoshihiro SAWADA, Naoyuki KUGA, Nobukazu KIMURA, Yuji ORIHASHI, Baluku BAJOPE, Munyololo wa YEMBA, Hidemi ISHIDA

African study monographs. Supplementary issue. 17 ( 17 ) 3 - 18 1992年07月

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