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Yasutaka Hayasaka
Researcher at Hiroshima University
Publications - 73
Citations - 1537
Yasutaka Hayasaka is an academic researcher from Hiroshima University. The author has contributed to research in topics: Zircon & Metamorphic rock. The author has an hindex of 21, co-authored 69 publications receiving 1279 citations. Previous affiliations of Yasutaka Hayasaka include Ehime University.
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Journal ArticleDOI
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 +17 more
TL;DR: In this article, the authors carried out an inter-laboratory evaluation in order to evaluate possible heterogeneity amongst the OD-3 zircon grains, and the results revealed no significant variation or heterogeneity in the U-Pb ages of the OD3 grains.
Journal ArticleDOI
Triassic eclogite from northern Vietnam: inferences and geological significance
Nobuhiko Nakano,Yasuhito Osanai,Krishnan Sajeev,Yasutaka Hayasaka,Tomoharu Miyamoto,N. T. Minh,Masaaki Owada,Brian F. Windley +7 more
TL;DR: The first low-temperature eclogites from the Indochina region are reported in this paper, which occur along the Song Ma Suture zone in northern Vietnam, where the major lithology of the area is pelitic schist that contains garnet and phengite with or without biotite, chloritoid, staurolite and kyanite.
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Discovery of high-pressure granulite-facies metamorphism in northern Vietnam: Constraints on the Permo-Triassic Indochinese continental collision tectonics
Nobuhiko Nakano,Yasuhito Osanai,Nguyen Thi Minh,Tomoharu Miyamoto,Yasutaka Hayasaka,Masaaki Owada +5 more
TL;DR: In this paper, high-pressure mafic granulites containing granoblastic garnet, quartz, and minor hornblende have been found from the Song Ma Suture zone in northern Vietnam, regarded as a microcontinental boundary between the South China and Indochina blocks.
Tectonic Evolution of the Sambagawa Schists and its Implications in Convergent Margin Processes
Ikuo Hara,Tsugio Shiota,Kei Hide,Kenji Kanai,Masumi Goto,Sachiyo Seki,Kenji Kaikiri,Kenji Takeda,Yasutaka Hayasaka,Takami Miyamoto,Yasuhiro Sakurai,Yukiko Ohtomo +11 more
Journal ArticleDOI
Nappe structure of the Sambagawa belt
TL;DR: In this paper, the authors analyzed the thermal structure of the upper horizon of the Sambagawa schist sequence in Central Shikoku as an example for the whole belt and concluded that the Saruta nappes were overturned and then mechanically coupled with the Fuyunose nappe, but the direction of the increase of metamorphic grade is not clear.