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Showing 1–6 of 6 results
Advanced filters: Author: Yumiko Harigane Clear advanced filters

  • The Izu–Bonin–Mariana forearc indicates two distinct types of forearc crust formation during subduction initiation, including a damaged crust linked to early seafloor spreading and a pristine crust that forms later due to off-axis volcanism, according to petrophysical and geochemical analysis of drillcores.

    • Yuya Akamatsu
    • Masakazu Fujii
    • Katsuyoshi Michibayashi
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 7, P: 1-9

  • Peridotite carbonation plays an important role in the carbon cycle. Here, the authors present a geophysical characterization of serpentinite carbonation from km to mm scale and confirm that the abundance of magnetic minerals provides a strong correlation with the overall carbonation reaction process.

    • Masako Tominaga
    • Andreas Beinlich
    • Yumiko Harigane
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-10

  • Limited oxidative weathering of crustal sulfide before the Gowganda glaciation suggests low atmospheric oxygen levels persisted long before the final Huronian glaciation, according to a geochemical and isotopic analysis of the upper Espanola and Serpent formations in Canada.

    • Kosuke T. Goto
    • Yasuhito Sekine
    • Eiichi Tajika
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 6, P: 1-11

  • Drilling by the Integrated Ocean Drilling Program has recovered primitive, modally layered, orthopyroxene-bearing cumulate rocks from the lower plutonic crust formed at a fast-spreading ridge, leading to a better-constrained estimate of the bulk composition of fast-spreading oceanic crust.

    • Kathryn M. Gillis
    • Jonathan E. Snow
    • Robert P. Wintsch
    Research
    Nature
    Volume: 505, P: 204-207

  • Veins of aragonite in deep ocean trenches can record discharges of CO2-rich paleoseawater and suggest that exposed serpentinized forearcs can act as carbon reservoirs, according to residence time calculations based on geochemical analyses of mantle rocks from offshore Japan.

    • Ryosuke Oyanagi
    • Atsushi Okamoto
    • Katsuyoshi Michibayashi
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 2, P: 1-10