Presentations -
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New zircon reference material of Late Cretaceous age, SoriZ zircon from the Sori Granodiorite in Japan
MAYUKO FUKUYAMA, Marion Tichomirowa, Alexandra Käßner, Masatsugu Ogasawara
Abstracts of Annual Meeting of the Geochemical Society of Japan 2024 - 2024 GEOCHEMICAL SOCIETY OF JAPAN
<p>The Cretaceous period is a significant time for igneous activities in the geological history of the Japanese Islands and the eastern margin of the Asian continent (e.g., Isozaki et al., 2010). Thus, we frequently need to compare the age data of that time. However, there is currently a lack of secondary zircon standards in the Cretaceous. Ogasawara et al. (2013) proposed SoriZ93 from the Sori Granodiorite, Northeast Japan, as a possible Cretaceous zircon reference material. We obtained a new large block of the Sori granodiorite from the same quarry as SoriZ93, and separated zircon grains (SoriZ). In this study, we examine further characteristics of zircon grains from the Sori Granodiorite, and date zircons using the U-Pb CA-ID-TIMS method. The zircon grains were dated by CA-ID-TIMS and LA-ICP-MS to establish the secondary reference material in the Late Cretaceous. As a result, SoriZ zircons (94.15 Ma) are suitable for secondary reference materials in the Late Cretaceous.</p>
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The formation history of granitic batholith of the eastern margin of the Asian continent traced by U-Pb dating and trace element analysis of detrital zircon in the Permian-Jurassic accretionary complexes of the NE Japan
BABA Hinako, AOKI Shogo, UTINO Takayuki, HUKUYAMA Mayuko, KON Yoshiaki
Annual Meeting of the Geological Society of Japan 2024 - 2024 The Geological Society of Japan
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Characteristics of Ryukyu Arc magmatism based on U-Pb zircon dating of granitic rocks and felsic volcanic rocks in the Ryukyu Islands
Fukuyama Mayuko, Ogasawara Masatsugu
Annual Meeting of the Geological Society of Japan 2024 - 2024 The Geological Society of Japan
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Petrology and U-Pb zircon dating on poikilitic hornblende peridotite in the southern end of the Abukuma Mountains
Wakazono Akira, Fukuyama Mayuko, Itano Keita, Harigane Yumiko, Tamura Akihiro, Morishita Tomoaki
Annual Meeting of the Geological Society of Japan 2024 - 2024 The Geological Society of Japan
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Zircon U-Pb ages of the granitoids in the central part of the Asahi Mountains, Northeast Japan: implications on spatiotemporal distributions of Cretaceous magmatism
OGASAWARA Masatsugu, FUKUYAMA Mayuko, HORIE Kenji, TAKEHARA Mami, NEGISHI Yoshimitsu, OHTSUBO Tomohide, FUJIMOTO Yukio, OHIRA Yoshihisa, SHOJI Katsunobu, MIZUOCHI Yukihiro, TASAKA Takashi
Annual Meeting of the Geological Society of Japan 2024 - 2024 The Geological Society of Japan
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Zircon U-Pb age and metamorphosed welded tuff in Daifukuji, the Noto Peninsula, central Japan: Its relationship with the Younger Hida Granites and the Lower Jurassic Kuruma Group
2023.09 - 2023.09
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Detrital zircon U–Pb dating in the Early Carboniferous Tsunatori Unit of the Nedamo Belt in the NE Japan
2023.09 - 2023.09
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Chemical mapping with micro-XRF and combined analysis with LA-ICP-MS
Fukuyama Mayuko
2023.09 - 2023.09
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Timing of the Oritate travertine formation by comparison between its carbonate U-Pb age and zircon U-Pb age of the overlain tuffaceous sandstone, Toyama Prefecture, Japan.
Fukuyama, M., Ogasawara, M.
Goldschmidt 2023 2023.07 - 2023.07
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Zircon U-Pb ages of the Ryugamori granitic rocks, northern Akita Prefecture, Japan
Fukuyama, M., Ogasawara, M.
2023.05 - 2023.05
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Characterization of Libeli Banded Iron Formation (BIF) and surrounding rocks, Niger State, Nigeria
Busuma Ali, Fukuyama Mayuko
JpGU2023 2023.05 - 2023.05
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Transient fluid flow recorded in the Crust-Mantle transition zone of the Oman Ophiolite
Yoshida, K., Oyanagi, R., Kimura, M., Plümper, O., Fukuyama, M., Okamoto, A.
EGU2023 2023.04 - 2023.04
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Detrital zircon U-Pb dating in the Early Carboniferous Tsunatori Unit of the Nedamo Belt in the NE Japan
青木翔吾, 内野隆之, 福山繭子, 中野竜
日本地質学会学術大会(Web) 2023 - 2023
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Transient fluid infiltration in the shallow mantle wedge recorded in the Oman Ophiolite
Yoshida, K., Oyanagi, R., Kimura, M., Plumper, O., Fukuyama, M., Okamoto, A.
International Joint Workshop on Slow-to-Fast Earthquakes 2022 2022.09 - 2022.09
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The timing of skarn formation of the Kamaishi deposit in the Kitakami Mountains, Japan by zircon and garnet U-Pb datings and the chemical characteristics of igneous complexes around the deposit.
Fukuyama, M., Ogasawara, M., Horie, K., Takehara, M.
Goldschmidt 2022 2022.07 - 2022.07
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Groundwater geochemical survey for blind ore deposits in the subtropical area: an example from Malawi, Southeast Africa.
Fukuyama, M, Kachemwe, M [Invited]
Virtual GEOSEA 2021 2021.12 - 2021.12
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U-Pb age of the Oritate travertine from Unazuki area, Toyama, Japan.
Fukuyama, M, Ogasawara, M
2021.09 - 2021.09
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The formation of skarn deposit of the Kamaishi Mine in the Kitakami Mountains, Japan: constraints from Sr-Nd isotopic data, zircon U-Pb age and Hf isotopes.
Fukuyama, M., Ogasawara, M., Horie, K., Takehara, M.
Goldschmidt2021 (Lyon, France) 2021.07 - 2021.07
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Detrital zircon geochemistry in the Shimanto Accretionary Complex: Tectonic constraints on formations of the Jurassic to Cretaceous batholiths in the eastern Asian margin
Aoki, S., Aoki, K., Fukuyama, M., Ogasawara, M.
JpGU2021 2021.05 - 2021.06 Japan Geoscience Union
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Fukuyama Mayuko
Abstracts of Annual Meeting of the Geochemical Society of Japan 2021 - 2021 GEOCHEMICAL SOCIETY OF JAPAN
<p>We have examined the chemical characteristics of silica scaling from the Onuma geothermal power plant at Akita Prefecture, Japan. The scale consists of mainly amorphous silica and trace amounts of montmorillonite, kaolinite, and euhedral pyrite. The texture of pyrite suggests that pyrite is possible to crystalize prior to the growth of amorphous silica. Silica scale gradually changes its chemical composition from the production well toward the reinjection well. Most of trace elements including REE in silica scale also significantly decrease toward to the reinjection well, and furthermore HREE decreases more extensively than LREE though alkali and alkali earth elements (Be, Rb, Sr, Cs, and Ba) increase toward to the reinjection well. The change of element concentration in silica scales can be utilized to understand the physical and chemical conditions in the pipes at the geothermal power plant.</p>