Seeing through the magnetite: Reassessing Eoarchean atmosphere composition from Isua (Greenland) ≥3.7 Ga banded iron formations

Seeing through the magnetite: Reassessing Eoarchean atmosphere composition from Isua (Greenland) ≥3.7 Ga banded iron formations

Estimates of early atmosphere compositions from metamorphosed banded iron formations (BIFs) including the well-studied ≥3.7 BIFs of the Isua supracrustal belt (Greenland) are dependent on knowledge of primary versus secondary Fe-mineralogical assemblages. Using new observations from locally well pre...

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Bibliographic Details
Main Authors: Allen P. Nutman, Vickie C. Bennett, Clark R.L. Friend
Format: Article
Language:English
Published: Elsevier 2017-11-01
Series:Geoscience Frontiers
Subjects:
Banded iron formation
Eoarchean
Early atmosphere
Greenalite
Magnetite
Online Access:http://www.sciencedirect.com/science/article/pii/S1674987117300464

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http://www.sciencedirect.com/science/article/pii/S1674987117300464

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