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Eoarchaean crustal growth in West Greenland (Itsaq Gneiss Complex) and in northeastern China (Anshan area): review and synthesis

Nutman, Allen; Bennett, Victoria; Friend, Clark; Jenner, Frances; Wan , Yusheng; Liu, D

Description

Eoarchaean crust in West Greenland (the Itsaq Gneiss Complex, 3870-3600 Ma) is >80% by volume orthogneisses derived from plutonic tonalite-trondhjemite-granodiorite (TTG) suites, <10% amphibolites derived from basalts and gabbros, <10% crustally derived granite,<1% metasedimentary rocks and ≪1% tectonic slices of upper mantle peridotite. Amphibolites at >3850, c. 3810 and c. 3710 Mahave some compositional similarities to modern island arc basalts (IAB), suggesting their origin by hydrous...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/50297
Source: Geological Society of London Special Publication
DOI: 10.1144/SP318.5

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