Can Archean granulites be direct crystallization products from a sialic magma layer?

J. D. Kramers, J. R. Ridley

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Archean granulite terrains are generally dominated by charnockite-enderbite suites. These rocks are geochemically similar to the tonalite-trondhjemite-granodiorite (TTG) gneisses of Archean cratons. Following an open-system fractional crystallization model for formation of TTG crust through solidification from a shallow-level tonalitic magma ocean, we propose that such granulites could have formed by crystallization at depth at the base of the same magma layer, which is undergoing convection. -from Authors

Original languageEnglish
Pages (from-to)442-445
Number of pages4
JournalGeology
Volume17
Issue number5
DOIs
Publication statusPublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Geology

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