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Reconstruction of a 3700 Ma transgressive marine environment from Isua (Greenland): Sedimentlogy, stratigraphy and geochemical signatures

Nutman, Allen P.; Friend, Clark R L; Bennett, Victoria; Van Kranendonk, M J; Chivas, A R


The rare preservation of a stratigraphy in the northwest of the Eoarchean Isua supracrustal belt (Greenland) demonstrates the world's earliest-recognised marine transgression. Stratigraphically lowest is the ~3710 Ma Solvang Volcanic Formation of picrites, basalts and basaltic-andesites with arc-like geochemical signatures. Close to its erosional top, this formation's volcanic rocks show increase in K2O with depletion of Na2O, depletion in Sr with no alteration in Eu abundance and δ18OVSMOW...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Lithos
DOI: 10.1016/j.lithos.2019.105164


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