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Halevy, Itay

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Halevy, Itay

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    Production of Neoproterozoic banded iron formations in a partially ice-covered ocean
    (Springer Science and Business Media LLC, 2024-04) Gianchandani, Kaushal; Halevy, Itay; Gildor, Hezi; Ashkenazy, Yosef; Tziperman, Eli
    The meridional extent of marine ice during the Neoproterozoic snowball Earth events is debated. Banded iron formations (BIFs) associated with the Sturtian glaciation are considered evidence for a completely ice-covered, ferruginous ocean (hard snowball). Using an ocean general circulation model with thick sea glaciers and Neoproterozoic biogeochemistry, we find that circulation in a partially ice-covered ocean (soft snowball) yields iron deposition patterns similar to the observed distribution of Sturtian BIFs.