Ota Tsutomu

オオタツトム | Ota Tsutomu

Affiliation and department：
Job title： Research associate

Research field (3)： Solid earth science , Space and planetary science , Biogeoscience

Research keywords (4)：岩石学 , Petrology , 地球化学 , Geochemistry

Research theme for competitive and other funds (12)：

2017 - 2020 Spatiotemporal scale of isotope disequilibria in the mantle, deduced from lithium isotope compositions of mantle peridotite
2015 - 2018 An integrated study of Paleoproterozoic high-pressure intermediate-type metamorphic belt: Implication for the operation of modern-style subduction processes
2012 - 2015 An integrated study of Paleo- and Neoproterozoic orogenic processes at the Tanzanian craton margin
2012 - 2015 Water content and lithium isotope fractionation in subduction-zone mantle olivine
2009 - 2012 希ガス同位体を用いた「Old Rock Geochemistry」の展開

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Papers (61)：

Torii Douglas-Song, Tsutomu Ota, Masahiro Yamanaka, Hiroshi Kitagawa, Ryoji Tanaka, Christian Potiszil, Tak Kunihiro. Lithium- and oxygen-isotope compositions of a Si-rich nebular reservoir determined from chondrule constituents in the Sahara 97103 EH3 chondrite. Geochimica et Cosmochimica Acta. 2025. 400. 51-71
Christian Potiszil, Tsutomu Ota, Masahiro Yamanaka, Katsura Kobayashi, Ryoji Tanaka, Eizo Nakamura. Meteoritic and asteroidal amino acid heterogeneity: Implications for planetesimal alteration conditions and sample return missions. EARTH AND PLANETARY SCIENCE LETTERS. 2025. 653
Christian Potiszil, Tsutomu Ota, Eizo Nakamura. Reconciling remote-sensing estimates of Ryugu’s albedo with laboratory measurements. Nature Astronomy. 2024. 8. 12. 1617-1621
Ryoji Tanaka, Dilan M. Ratnayake, Tsutomu Ota, Noah Miklusicak, Tak Kunihiro, Christian Potiszil, Chie Sakaguchi, Katsura Kobayashi, Hiroshi Kitagawa, Masahiro Yamanaka, et al. Unraveling the Cr Isotopes of Ryugu: An Accurate Aqueous Alteration Age and the Least Thermally Processed Solar System Material. The Astrophysical Journal. 2024. 965. 1. 52-52
Tsutomu Ota, Christian Potiszil, Katsura Kobayashi, Ryoji Tanaka, Hiroshi Kitagawa, Tak Kunihiro, Chie Sakaguchi, Masahiro Yamanaka, Eizo Nakamura. The Formation of a Rubble Pile Asteroid: Insights from the Asteroid Ryugu. Universe. 2023. 9. 6. 293-293

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MISC (24)：

Anma ryo, Komiya Tsuyoshi, Kon Yoshiakai, Shibiya Takazou, Ota Tsutomu, Orihashi Yuji, Armstrong Richard. The Taitao ophiolite and related felsic plutonism nearby the Chile ridge subduction zone. Abstracts of Annual Meeting of the Geochemical Society of Japan. 2008. 55. 301-301
Ota Tsutomu, Kobayashi Katsura, Nakamura Eizo. Transportation of boron by subducting lithosphere; insights from diamondiferous tourmaline from Kokchetav. Abstracts of Annual Meeting of the Geochemical Society of Japan. 2008. 55. 67-67
Sakakibara Masayuki, Yasumoto Kazumi, Ota Tsutomu, Ikeda Michiharu. O-142 Shuffled-cards structure of Kamuikotan high-P/T metamorphic rocks, central Hokkaido, Japan. 日本地質学会学術大会講演要旨. 2007. 114. 132-132
Aoki K., Masago H., Terabayashi M., Kaneko Y., Okamoto K., Yamamoto H., Ota T., Maruyama S. S-47 Formation and Exhumation process of the Sanbagawa metamorphic belt, central Shikoku, Japan. 2007. 114. 25-25
Tsutomu Ota. Zircon geochemistry of Mid-Miocene adakites in the southern Patagonian province. Geochimica et Cosmochimica Acta. 2003

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Education (3)：

Professional career (1)：

Work history (4)：

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