Archives(2026-)

発表次第(23 Apr. 2026, 1636):

1. Takahashi Kyosuke (B4)

南極海の二酸化炭素放出と栄養塩負荷は氷期北太平洋の活発な換気によって抑制された

(Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific)

Shankle, M. G., MacGilchrist, G. A., Gray, W. R., de Lavergne, C., Menviel, L. C., Burke, A., & Rae, J. W. (2025). Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific. Nature Communications, 16(1), 8279.

DOI: 10.1038/s41467-025-63774-8

2. Suzuki Nana (B4)

ローソン石青色片岩相が支配するマントルウェッジコーナー中の巨大地震について

(Lawsonite Blueschist Control on Mantle Wedge Megathrust Earthquakes)

Hao Zhang, Sylvain Barbot, Zekang Yang, Mingqi Liu, Lei Zhang & John Platt (2026). Large megathrust earthquakes in cold mantle wedge corners under lawsonite blueschist facies. Nature Communications.

DOI: 10.1038/s41467-026-70315-4

3. Muto Monami (M1)

多重プロキシに基づいた 氷期大西洋循環の再構築

(Reconstructing Glacial Atlantic Circulation Using Multi-Proxy Approaches)

Pöppelmeier, F., Jeltsch-Thömmes, A., Lippold, J. et al. Multi-proxy constraints on Atlantic circulation dynamics since the last ice age. Nature Geoscience, 16, 349–356 (2023).

DOI: 10.1038/s41561-023-01140-3

Blaser, P., Waelbroeck, C., Thornalley, D.J.R. et al. Prevalent North Atlantic Deep Water during the Last Glacial Maximum and Heinrich Stadial 1. Nature Geoscience, 18, 410–416 (2025).

DOI: 10.1038/s41561-025-01685-5

4. Tamura Koyo (M2)

深部炭素循環の全体像と非生物起源メタン生成

(Overview of the Deep Carbon Cycle and Abiotic Methane Generation)

Vitale Brovarone, A., Wong, K., Giovannelli, D., De Pins, B., Gaillard, F., Massuyeau, M., ... & Daniel, I. (2025). Forms and fluxes of carbon: Surface to deep. In Treatise on Geochemistry (Third Edition) (Vol. 2, pp. 647-698). Elsevier.

DOI: 10.1016/B978-0-323-99762-1.00142-X

Harada, H., & Tsujimori, T. (2024). Methane genesis within olivine-hosted fluid inclusions in dolomitic marble of the Hida Belt, Japan. Progress in Earth and Planetary Science, 11(1), 6.

DOI: 10.1186/s40645-024-00609-y

発表次第(16 Apr. 2026, 1635):

1. Muramatsu Kotaro (M1)

やや深発地震におけるスラブ構造と破壊過程およびメカニズム遷移

(Slab Structure, Rupture Process, and Mechanism Transition in Intermediate-Depth Earthquakes)

Wang, Z., Zhao, D., & Chen, X. (2023). Fine structure of the subducting slab and the 2022 M 7.4 Fukushima-Oki intraslab earthquake. Seismological Research Letters, 94(1), 17–25.

DOI: 10.1785/0220220234

Jia, Z., Mao, W., Flores, M. C., Barra, S., Ruiz, S., Potin, B., Becker, T. W., Moreno, M., Baez, J. C., Ceroni, D., & Cabrera, L. (2025). Deep intra-slab rupture and mechanism transition of the 2024 Mw 7.4 Calama earthquake. Nature Communications, 16, 8140.

DOI: 10.1038/s41467-025-63480-5

2. Masuda Hidetoshi (M2)

73年で再来した超巨⼤地震

(A 73-year interval of giant earthquakes)

DOI:

発表次第(09 Apr. 2026, 1634):

1. Takatsu Kosei (M1)

石灰化プランクトンによる海洋炭素循環の定量評価

(Quantitative Evaluation of the Marine Carbon Cycle by Calcifying Plankton)

Chaabane, S., de Garidel‐Thoron, T., Giraud, X., Meilland, J., Brummer, G. J. A., Jonkers, L., ... & Schiebel, R. (2024). Size normalizing planktonic Foraminifera abundance in the water column. Limnology and Oceanography: Methods, 22(10), 701-719

DOI: 10.1002/lom3.10637

Kruijt, A. L., van Dijk, R., Sulpis, O., Beaufort, L., Lassus, G., Brummer, G. J., ... & Middelburg, J. J. (2026). The contributions of various calcifying plankton to the South Atlantic calcium carbonate stock. Biogeosciences, 23(2), 531-563.

DOI: 10.5194/bg-23-531-2026

2. Takenawa Tomohiro (D1)

沈み込み帯の流体とは何か?状態・組成と地震活動との関連

(Subduction Zone Fluids: Phase, Composition, and Implications for Seismicity)

DOI: