Production of Neoproterozoic banded iron formations in a partially ice-covered ocean

Kaushal Gianchandani; Itay Halevy; Hezi Gildor; Yosef Ashkenazy; Eli Tziperman

doi:10.1038/s41561-024-01406-4

Production of Neoproterozoic banded iron formations in a partially ice-covered ocean

Kaushal Gianchandani, Itay Halevy, Hezi Gildor, Yosef Ashkenazy, Eli Tziperman

Weizmann Institute of Science, Ben-Gurion University of the Negev, The Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	298-301
Number of pages	4
Journal	Nature Geoscience
Volume	17
Issue number	4
Early online date	9 Apr 2024
DOIs	https://doi.org/10.1038/s41561-024-01406-4
State	Published Online - 9 Apr 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

All Science Journal Classification (ASJC) codes

General Earth and Planetary Sciences

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10.1038/s41561-024-01406-4

Cite this

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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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AU - Tziperman, Eli

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AB - 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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Production of Neoproterozoic banded iron formations in a partially ice-covered ocean

Abstract

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