Search Results - "Ueki, Kenta"

Geochemical differentiation processes for arc magma of the Sengan volcanic cluster, Northeastern Japan, constrained from principal component analysis by Ueki, Kenta, Iwamori, Hikaru

“…In this study, with a view of understanding the structure of high-dimensional geochemical data and discussing the chemical processes at work in the evolution…”
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An Introduction to SGTPPR: Sparse Geochemical Tectono‐Magmatic Setting Probabilistic MembershiP DiscriminatoR by Ueki, Kenta, Hino, Hideitsu, Kuwatani, Tatsu

“…We present a new and easy‐to‐use geochemical tectono‐magmatic setting discriminator to calculate the probability of membership (the Sparse Geochemical…”
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Geochemical Discrimination of Monazite Source Rock Based on Machine Learning Techniques and Multinomial Logistic Regression Analysis by Itano, Keita, Ueki, Kenta, Iizuka, Tsuyoshi, Kuwatani, Tatsu

“…Detrital monazite geochronology has been used in provenance studies. However, there are complexities in the interpretation of age spectra due to their wide…”
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Sparse isocon analysis: A data-driven approach for material transfer estimation by Kuwatani, Tatsu, Yoshida, Kenta, Ueki, Kenta, Oyanagi, Ryosuke, Uno, Masaoki, Akaho, Shotaro

“…Isocon analysis has been widely applied to various geoscientific problems as a simple standard tool for quantitative estimation of material transfer. Despite…”
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Regression analysis and variable selection to determine the key subduction-zone parameters that determine the maximum earthquake magnitude by Nakao, Atsushi, Kuwatani, Tatsu, Ueki, Kenta, Yoshida, Kenta, Yutani, Taku, Hino, Hideitsu, Akaho, Shotaro

“…Large variations in the maximum earthquake magnitude ( M max ) have been observed among the world’s subduction zones. There is still no universal relationship…”
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Oxidation during magma mixing recorded by symplectites at Kusatsu–Shirane Volcano, Central Japan by Ueki, Kenta, Inui, Mutsuko, Matsunaga, Kenta, Okamoto, Naoya, Oshio, Kazuki

“…Kusatsu–Shirane Volcano is an active Quaternary andesitic-to-dacitic volcano located in the Central Japan Arc. We conducted a detailed petrological…”
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Extracting the geochemical characteristics of magmas in different global tectono-magmatic settings using sparse modeling by Ueki, Kenta, Hino, Hideitsu, Kuwatani, Tatsu

“…In this study, key geochemical features of magmas formed in eight different tectono-magmatic settings (mid-ocean ridges, oceanic islands, oceanic plateaus,…”
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Quantitative logging data clustering with hidden Markov model to assist log unit classification by Yabe, Suguru, Hamada, Yohei, Fukuchi, Rina, Nomura, Shunichi, Shigematsu, Norio, Kiguchi, Tsutomu, Ueki, Kenta

“…Revealing subsurface structures is a fundamental task in geophysical and geological studies. Logging data are usually acquired through drilling projects, which…”
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Two-stages of plume tail volcanism formed Ojin Rise Seamounts adjoining Shatsky Rise by Sano, Takashi, Hanyu, Takeshi, Tejada, Maria Luisa G., Koppers, Anthony A.P., Shimizu, Shoka, Miyazaki, Takashi, Chang, Qing, Senda, Ryoko, Vaglarov, Bogdan S., Ueki, Kenta, Toyama, Chiaki, Kimura, Jun-Ichi, Nakanishi, Masao

“…Many groups or chains of seamounts border, or are associated with, oceanic plateaus but their origin and relationship with plateau volcanism are debated. An…”
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Evolution of magma supply system beneath a submarine lava dome after the 7.3-ka caldera-forming Kikai-Akahoya eruption by Hamada, Morihisa, Hanyu, Takeshi, McIntosh, Iona M., Tejada, Maria Luisa G., Chang, Qing, Kaneko, Katsuya, Kimura, Jun-Ichi, Kiyosugi, Koji, Miyazaki, Takashi, Nakaoka, Reina, Nishimura, Kimihiro, Sato, Tomoki, Seama, Nobukazu, Suzuki-Kamata, Keiko, Tanaka, Satoru, Tatsumi, Yoshiyuki, Ueki, Kenta, Vaglarov, Bogdan S., Yoshida, Kenta

“…Kikai caldera in SW Japan, which is a submarine volcano, has undergone repeated caldera-forming eruptions. After the 7.3-ka caldera-forming Kika-Akahoya…”
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Genesis of ultra-high-Ni olivine in high-Mg andesite lava triggered by seamount subduction by Nishizawa, Tatsuji, Nakamura, Hitomi, Churikova, Tatiana, Gordeychik, Boris, Ishizuka, Osamu, Haraguchi, Satoru, Miyazaki, Takashi, Vaglarov, Bogdan Stefanov, Chang, Qing, Hamada, Morihisa, Kimura, Jun-Ichi, Ueki, Kenta, Toyama, Chiaki, Nakao, Atsushi, Iwamori, Hikaru

“…The Kamchatka Peninsula is a prominent and wide volcanic arc located near the northern edge of the Pacific Plate. It has highly active volcanic chains and…”
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Subduction-zone parameters that control slab behavior at the 660-km discontinuity revealed by logistic regression analysis and model selection by Nakao, Atsushi, Kuwatani, Tatsu, Ueki, Kenta, Yoshida, Kenta, Yutani, Taku, Hino, Hideitsu, Akaho, Shotaro

“…The potential mechanisms that drive the behavior of subducted oceanic plates at the 660-km discontinuity are subject to debate. Here we conduct logistic…”
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Simultaneous Analysis of Seismic Velocity and Electrical Conductivity in the Crust and the Uppermost Mantle: A Forward Model and Inversion Test Based on Grid Search by Iwamori, Hikaru, Ueki, Kenta, Hoshide, Takashi, Sakuma, Hiroshi, Ichiki, Masahiro, Watanabe, Tohru, Nakamura, Michihiko, Nakamura, Hitomi, Nishizawa, Tatsuji, Nakao, Atsushi, Ogawa, Yasuo, Kuwatani, Tatsu, Nagata, Kenji, Okada, Tomomi, Takahashi, Eiichi

“…This study presents a forward model to quantify the P‐wave velocity (VP), S‐wave velocity (VS), and electrical conductivity (σ) of the solid‐liquid mixtures…”
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Numerical data of probabilistic 3D lithological map of Japanese crust by Takeuchi, Nozomu, Ueki, Kenta, Iizuka, Tsuyoshi, Nagao, Jun, Tanaka, Akiko, Enomoto, Sanshiro, Shirahata, Yutaka, Watanabe, Hiroko, Yamano, Makoto, Tanaka, Hiroyuki

“…The 3D lithological distribution model presented in this data article is related to “Stochastic modeling of 3-D compositional distribution in the crust with…”
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Thermodynamic modeling of hydrous-melt–olivine equilibrium using exhaustive variable selection by Ueki, Kenta, Kuwatani, Tatsu, Okamoto, Atsushi, Akaho, Shotaro, Iwamori, Hikaru

“…Water in silicate melt influences the phase relations of a hydrous-melt system. Given the importance of water in silicate melts, a quantitative thermodynamic…”
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Identifying volatile mantle trend with the water–fluorine–cerium systematics of basaltic glass by Shimizu, Kenji, Ito, Motoo, Chang, Qing, Miyazaki, Takashi, Ueki, Kenta, Toyama, Chiaki, Senda, Ryoko, Vaglarov, Bogdan S., Ishikawa, Tsuyoshi, Kimura, Jun-Ichi

“…The lithophile elements and isotopic compositions of oceanic basalts suggest they derive from different mantle components. We present new analytical results of…”
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Geochemical discrimination and characteristics of magmatic tectonic settings; a machine learning-based approach by Ueki, Kenta, Hino, Hideitsu, Kuwatani, Tatsu

“…Geochemically discriminating between magmatism in different tectonic settings remains a fundamental part of understanding the processes of magma generation…”
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Ocean Bottom Detector: frontier of technology for understanding the mantle by geoneutrinos by Watanabe, Hiroko, Abe, Natsue, Araki, Eiichiro, Araki, Takuto, Inoue, Kunio, Kasaya, Takafumi, Kyo, Masanori, McDonough, William F., Sakai, Taichi, Sakurai, Noriaki, Ueki, Kenta, Yoshida, Hiroshi

“…Anti-neutrinos emitted from radioactive isotopes inside the Earth, geoneutrinos, bring unique and direct information on the Earth's composition and yield…”
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Stochastic Modeling of 3-D Compositional Distribution in the Crust with Bayesian Inference and Application to Geoneutrino Observation in Japan by Takeuchi, Nozomu, Ueki, Kenta, Iizuka, Tsuyoshi, Nagao, Jun, Tanaka, Akiko, Enomoto, Sanshiro, Shirahata, Yutaka, Watanabe, Hiroko, Yamano, Makoto, Tanaka, Hiroyuki K. M

“…Geoneutrino observations, first achieved by KamLAND in 2005 and followed by Borexino in 2010, have accumulated statistics and improved sensitivity for more…”
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