研究成果

2021年以降の主要なもの

2025年

  • (筆頭)
  • Hara, H., Utsunomiya, M. , Tonai, S., Matsumoto, H., Satish-Kumar, M. (2025) Formation of Miocene Authigenic Carbonates Within the Shimanto Accretionary Complex, Southwest Japan. Geochemistry, Geophysics, Geosystems, vol. 26(2), e2024GC011982. https://doi.org/10.1029/2024GC011982
  • Shimura, Y., Hara, H., Tokiwa, T., Nakamura, Y., Asahara, Y. (2025) Conglomerates in the Shimanto Accretionary Complex, SW Japan: Origin, Deposition, and the Influence of Subduction of the Izanagi–Pacific Spreading-Ridge. Tectonics, vol. 44(3), e2024TC008497. https://doi.org/10.1029/2024TC008497
  • Utsunomiya, M., Dowsett, H. J. (2025) Calcareous nannofossil biostratigraphy and floral response to environmental changes recorded in the Pliocene Yorktown Formation, southeastern Virginia, USA. Stratigraphy, vol. 22(3), p. 181-193. https://doi.org/10.29041/strat.22.3.02
  • Yamada, R., Nagata, M., Niki, S., Hirata, T. (2025) Zircon U-Pb dates from Lower Miocene rhyolitic welded tuffs in the Hokuriku region, central Japan: Implications for silicic volcanism prior to the opening of the Sea of Japan. Journal of Mineralogical and Petrological Sciences, vol. 120(1), 250214. https://doi.org/10.2465/jmps.250214
  • Yamada, R. (2025) Applicability of some trace element discrimination diagrams to rhyolites: Tectonic interpretation of silicic volcanism during opening of the Sea of Japan. Journal of Mineralogical and Petrological Sciences, vol. 120(1), 241128. https://doi.org/10.2465/jmps.241128
  • Suzuki, K.,Kurihara, T., Ishida, H. Takahashi, T., Ueda, H. (2025) Detrital zircon U–Pb ages and provenance of Permian sandstones from Sado Island, central Japan: Implications for Rodinia-derived sources in the eastern Central Asian Orogenic Belt. Sedimentary Geology, vol. 489, 106983. https://doi.org/10.1016/j.sedgeo.2025.106983
  • Suzuki, K., Kurihara, T., Hara, H., Ishikawa, K., Otsuki, T., Ueda, H. (2025) Detrital Zircons From Lower Palaeozoic Metamorphic Complexes and Silurian–Devonian Strata in the South Kitakami Belt, Northeast Japan: Implications for the Northern Extension of the Terra Australis Orogen in Northeast Gondwana. Geological Journal, vol. 60(2), Special issue: Continents, p. 336-358 https://doi.org/10.1002/gj.5052
  • Ito, T., Matsuoka, A. (2025) Sample and data management of microfossil collections: case of radiolarian specimens at Niigata University, Japan. Revue de Micropaléontologie, vol. 89, 100875. https://doi.org/10.1016/j.revmic.2025.100875
  • Ito, T., Kaneko, N., Itaki, T. (2025) Hand-held radiolarian models created using micro-CT and 3D printer. Revue de Micropaléontologie, vol. 89, 100871. https://doi.org/10.1016/j.revmic.2025.100871
  • (共著)
  • Tokiwa, T. Shimura, Y. , Mori, H. (2025) Detrital zircon U–Pb geochronology of the trench-fill sandstone on the Cretaceous Shimanto accretionary complex in SW Japan: Implications for provenance and igneous activity in the eastern edge of East Asia. Cretaceous Research, vol. 166, 106012. https://doi.org/10.1016/j.cretres.2024.106012
  • Haneda, Y, Utsunomiya, M., Iwano, H., Danhara, T., Hirata, T., Hosoi, J., Nakatani, K., Kubota, Y., Okada, M. (2025) Oxygen isotope-magnetostratigraphy combined with zircon U–Pb dating for the Upper Pliocene composite marine succession in central Japan: Implications for the warm Pliocene deep-water current system on the northwestern Pacific margin. Newsletters on Stratigraphy, vol. 58(3), p. 256-289. https://doi.org/10.1127/nos/2025/0874
  • Kuwano, D., Kameo, K., Kubota, Y., Utsunomiya, M., Mantoku, K., Okada, M. (2025) Orbital Scale Kuroshio Current Variations of the Northwestern Pacific Ocean in the Early Pleistocene (Marine Isotope Stage 40–36) Based on Calcareous Nannofossil Records. Paleoceanography and Paleoclimatology, vol. 40(2), e2024PA004921. https://doi.org/10.1029/2024PA004921

2024年

  • (筆頭)
  • Hara, H., Charoentitirat, T., Tokiwa, T., Kurihara, T., Suzuki, K., Sardsud, A. (2024) Record of the Indosinian Orogeny provided by conglomerates and detrital zircon U–Pb ages from the western Indochina Block, central Thailand. Gondwana Research, vol. 128, p. 368-389. https://doi.org/10.1016/j.gr.2023.11.009
  • Ito, T., Miyakawa, A., Matsuoka, A. (2024) Guadalupian and Lopingian (Middle and Late Permian) Radiolarians from Chert Blocks within Conglomerate of the Mino Belt, Southwest Japan. Ofioliti vol. 49(2), p. 89-96. https://doi.org/10.4454/ofioliti.v49i2.572
  • Muto, S., Ito, T.< Ozeki, M. (2024) Late Carboniferous age confirmed for the oceanic plate of Panthalassa preserved in the Kadoma Unit of the Jurassic accretionary complex in Northeast Japan Ofioliti, vol. 49(2), 107-123. https://doi.org/10.4454/ofioliti.v49i2.574
  • Utsunomiya, M., Kogure, T. (2024) Evolutionary change of crystallographic orientation and coccolith morphology: Neogene-Quaternary Umbilicosphaera (Prymnesiophyceae) lineage. Marine Micropaleontology, vol. 190, 102370. https://doi.org/10.1016/j.marmicro.2024.102370
  • (共著)
  • Kurihara, T., Suzuki, K., Ito. T., Ishida, H., Ueda, H., Matsuoka, A., (2024) Guadalupian–Lopingian (Middle–Late Permian) radiolarians from clastic rocks and zircon U–Pb ages of intercalated tuff and tuffaceous sandstone on Sado Island, central Japan． Revue de Micropaléontologie, vol. 85, 100750, https://doi.org/10.1016/j.revmic.2023.100750
  • Kaneki, S., Kouketsu, Y., Aoya, M., Nakamura, Y., Simon R. Wallis, Shimura, Y.,, Yamaoka, K. (2024) An automatic peak deconvolution code for Raman spectra of carbonaceous material and a revised geothermometer for intermediate- to moderately high-grade metamorphism. Progress in Earth and Planetary Science, vol. 11, 35. https://doi.org/10.1186/s40645-024-00637-8

2023年

  • (筆頭)
  • Ito, T., Matsuoka, A., Yokoyama, H. (2023) Spirally-Coiled Radiolarians in the Latest Jurassic-Earliest Cretaceous. Paleontological Research, vol. 28(1), p. 68-70, https://doi.org/10.2517/PR220026
  • Ito, T., Kawajiri, T., Matsuoka, A. (2023) Permian Radiolarians and Spicules from Conglomerate of the Lower Jurassic Kuruma Group in Itoigawa, Niigata Prefecture, Central Japan. Paleontological Research, vol. 27(3) p. 359-374, https://doi.org/10.2517/PR220005
  • Muto, S., Takahashi, S. , Yamakita, S. (2023) Elevated sedimentation of clastic matter in pelagic Panthalassa during the early Olenekian． Island Arc, vol. 32(1), e12485, https://doi.org/10.1111/iar.12485
  • Muto S., Takahashi, S., Murayama, M. (2023) Conodont biostratigraphy of a Carboniferous–Permian boundary section in siliceous successions of pelagic Panthalassa revealed by X-ray computed microtomography. Frontiers in Earth Science, vol. 11, 1162023. https://doi.org/10.3389/feart.2023.1162023
  • Ito, T., Muto, S. , Iwamoto, N. (2023) Permian and Triassic Microfossils from Chert Pebbles Within the Lower Cretaceous Choshi Group in the Choshi Geopark, Central Japan: Extending the Age Range of Fossil in Geoparks. Geoheritage, vol. 15, 130, https://doi.org/10.1007/s12371-023-00895-w
  • Utsunomiya, M., Tamura, I., Nozaki, A., Nakajima, T. (2023) Basin-wide erosion and segmentation of the Plio-Pleistocene forearc basin in central Japan revealed by tephro- and biostratigraphy. Progress in Earth and Planetary Science, vol. 10, 25, https://doi.org/10.1186/s40645-023-00558-y
  • (共著)
  • Sashida, K., Hong, P., Ito, T., Salyapongse, S. , Putthapiban, P. (2023) ate Triassic (Late Early to Early Middle Norian) and Late Triassic or Early Jurassic Radiolarians from Limestone in the Tha Sao Area, Kanchanaburi Province, Western Thailand: Low-Latitude Fauna in the Eastern Tethys. Paleontological Research, vol. 28(1), p. 37-67. https://doi.org/10.2517/PR220007
  • Tsukada, K. Sukhbaatar, P., Owada, M., Shimura, T., Yuhara, M., Kamei, A., Shimura, Y. , Gantumur, O. (2023) Tectonic division of the Southwestern terrane at the western Sør Rondane Mountains, Dronning Maud Land, East Antarctica, from a viewpoint of zircon U-Pb ages. Journal of Mineralogical and Petrological Sciences, vol. 118, ANTARCTICA, 221203. https://doi.org/10.2465/jmps.221203

2022年

  • (筆頭)
  • Ito, T. and Ichizawa, Y. (2022) Castellation incorporating geology and geography: 10th-16th century castles on chert of a Jurassic accretionary complex in central Japan. Geoheritage, vol. 14, article no. 17. https://doi.org/10.1007/s12371–022–00660–5
  • Shimura, Y., Tsukada, K. and Yamamoto, K. and Nadmid, B. (2022) Magmatism and tectonic setting of proto-Japan during the Early Carboniferous: Constraints from the geochemical characteristics of mafic volcanic rocks in the Hida Gaien Belt, SW Japan. Journal of Asian Earth Sciences, vol. 236, 105312

  • (共著)
  • Chiang, Ch-Sh., Yu, H-Sh., Noda, A. and Tuzino, T. (2022) The Huapinghsu Channel/Mienhua Canyon System as a sediment conduit transporting sediments from offshore North Taiwan to the Southern Okinawa Trough, Frontiers in Earth Science, vol. 9. https://doi.org/10.3389/feart.2021.792595
  • Sashida, K., Ito, T., Salyapongse, P. and Putthapiban, P. (2022) Permian and Triassic radiolarians from chert breccia in the Nong Prue area, Western Thailand: its origin and depositional setting in the Paleotethys. Palaeoworld, vol. 31, no. 1, p. 103–115.
  • Sashida, K., Ito, T., Hong, P., Fukushima, Y., Agematsu, S., Salyapongse, S. and Putthapiban, P. (2022) Occurrence of early Carboniferous radiolarians and Middle Triassic conodonts from Ban Rai, southwestern Uthai Thani, central Thailand and its geological significance. Paleontological Research, vol. 26(4), p. 420-439. https://doi.org/10.2517/PR200056
  • Nakamura，Y., Takahashi, U.K., Hosoi, J. , Hara, H. (2022) Determination of the laser-induced damage threshold for graphite and coal with deep-UV micro-Raman spectroscopy. Journal of Mineralogical and Petrological Sciences, vol. 117(1), 220316. https://doi.org/10.2465/jmps.220316

2021年

  • (筆頭)
  • Hara, H., Mori, H., Tominaga, K. and Nobe, Y. (2021) Progressive low-grade metamorphism reconstructed from the Raman spectroscopy of carbonaceous material and an EBSD analysis of quartz in the Sambagawa metamorphic event, central Japan. Minerals, vol. 11, 854.
  • Hara, H., Tokiwa, T., Kurihara, T., Charoentitirat, T. and Sardsud, A. (2021) Revisiting the tectonic evolution of the Triassic Palaeo-Tethys convergence zone in northern Thailand inferred from detrital zircon U-Pb ages. Geological Magazine, vol. 158, p. 905-929.
  • 伊藤 剛・中村佳博 (2021) 赤石山脈西部に分布する秩父帯ジュラ紀付加体及び南信濃の中新統和田層のチャート礫から産出した放散虫．化石, vol. 110, p. 3–16.
  • Muto, S., Yagyu, S., Takahashi, S. and Murayama, M. (2021) Identification of conodont fossils in pelagic deep-sea siliceous sedimentary rocks using laboratory-based X-ray computed microtomography. Lethaia, vol. 54, no. 5, p. 687– 699.
  • Shimura, Y., Tokiwa,T., Mori, H., Takeuchi, M. and Kouketsu, Y. (2021) Deformation characteristics and peak temperatures of the Sanbagawa Metamorphic and Shimanto Accretionary complexes on the central Kii Peninsula, SW Japan. Journal of Asian Earth Sciences, vol. 215, no. 1, 104791.
  • Utsunomiya, M., Hagino, K. and Tanaka, Y. (2021) Speciation of extant Umbilicosphaera (Prymnesiophyceae) during the Pliocene. Marine Micropaleontology, vol. 169, 102037.
  • Utsunomiya, M. and Yamamoto, Y. (2021) Spatial Distribution of Mass-Transport Deposits Deduced From High-Resolution Stratigraphy: The Pleistocene Forearc Basin (Boso Peninsula, Central Japan), Submarine Landslides: Subaqueous Mass Transport Deposits from Outcrops to Seismic Profiles. American Geophysical Union, p. 57–69.
  • 原　英俊・久田健一郎（2021）関東山地東縁部に分布する蛇紋岩のクロムスピネル化学組成. 地質調査研究報告, vol. 72, no. 5, p. 447–458.
  • 伊藤 剛 (2021) 特集：足尾山地南西部，「桐生及足利」地域の地質と化石．地質調査研究報告, vol. 72, no. 4, p. 191-396.
  • Muto, S. and Ito, T. (2021) Conodont fossils from the Kiryu and Ashikaga District (Quadrangle series 1:50,000), central Japan with emphasis on the reexamination of “Carboniferous” conodonts from the Ashio Belt. Bulletin of the Geological Survey of Japan, vol. 72, no. 4, p. 325–344.
  • Muto, S., Okumura, Y. and Mizuhara, T. (2021) Late Kungurian conodonts of the pelagic Panthalassa from seamount-capping limestone in Ogama, Kuzuu, Tochigi Prefecture. Japan. Paleontological Research, vol. 25, no. 2, p. 105–119.
  • 中江 訓 (2021) 京都府北部丹後地方に分布する古第三紀珪長質深成岩類の貫入年代と山陰帯深成活動の年代対比. 地質調査研究報告, vol. 72, no. 1. p. 1–21.
  • 中江 訓 (2021) 岩手県久慈地域 における北部北上帯ジュラ系付加複合体に狭在する苦鉄質岩の化学組成と起源．地質調査研究報告, vol. 72, no. 3, p. 173–190.

  • (共著)
  • Kajita, H., Maeda, A., Utsunomiya, M., Yoshimura, T., Ohkouchi, N., Suzuki, A. and Kawahata, H. (2021) Biomarkers in the rock outcrop of the Kazusa Group reveal palaeoenvironments of the Kuroshio region. Communications Earth & Environment, vol. 2, article no. 82. https://doi.org/10.1038/s43247–021–00154–2.
  • Tominaga, K. and Hara, H. (2021) Paleogeography of Late Jurassic large-igneous-province activity in the Paleo-Pacific Ocean: Constraints from the Mikabu greenstones and Chichibu accretionary complex, Kanto Mountains, Central Japan. Gondwana Research, vol. 89, p. 177–192.
  • 兼子 尚知・利光 誠一・辻野 匠・中村 由美・森田 澄人 (2021) 地質標本館における博物館実習のあゆみ. GSJ 地質ニュース, vol. 10, no. 4, p. 60–66.
  • Xiao, Y.F., Suzuki, N., Ito, T. and He, W. H. (2021) New Permian radiolarians from east Asia and the quantitative reconstruction of their evolutionary and ecological significances. Scientific Reports, vol. 11, article no. 6831. https://doi.org/10.1038/s41598-021-86262-7.
  • Yoshizawa, K., Takahashi S., Muto S., Ehiro M. and Tsuihiji T. (2021) Oceanic water redox conditions of the region between Tethys and Panthalassa during the late Early Triassic. Palaeogeography Palaeoclimatology Palaeoecology, vol. 567. https://doi.org/10.1016/j.palaeo.2020.110143