Production of Neoproterozoic banded iron formations in a partially ice-covered ocean
Gianchandani, K.; Halevy, I.; Gildor, H.; Ashkenazy, Y.; Tziperman, E. (2024). Production of Neoproterozoic banded iron formations in a partially ice-covered ocean. Nature Geoscience 17(4): 298-301. https://dx.doi.org/10.1038/s41561-024-01406-4
In: Nature Geoscience. Nature Publishing Group: London. ISSN 1752-0894; e-ISSN 1752-0908, meer
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| Auteurs | | Top |
- Gianchandani, K.
- Halevy, I.
- Gildor, H.
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- Ashkenazy, Y.
- Tziperman, E.
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| Abstract |
The meridional extent of marine ice during the Neoproterozoic snowball Earth events is debated. Banded iron formations associated with the Sturtian glaciation are considered evidence for a completely ice-covered, ferruginous ocean (hard snowball). Here, 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 banded iron formations. |
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