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Diversity in Earth's early felsic crust: Paleoarchean peraluminous granites of the Barberton Greenstone Belt

Sanchez-Garrido, Cynthia J.M.G.; Stevens, Gary; Armstrong, Richard; Moyen, Jean-Francois; Martin, H; Doucelance, Regis


Earth's oldest preserved granitoid crust dates back to the Paleoarchean and consists predominantly of sodic tonalite-trondhjemite-granodiorite (TTG) granitoids that arose through the partial melting of hydrated metabasalts. In contrast, granites (sensu stricto) typically appear relatively late in the plutonic record of the old cratons. However, the existence of Hadean zircons with mineral inclusion suites that are consistent with crystallization from peraluminous granitic magmas indicates that...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Geology
DOI: 10.1130/G32193.1


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