The Narryer Terrane, Yilgarn Craton, Western Australia: Review and Recent Developments

Anthony Kemp, Simon Wilde, Catherine Spaggiari

Research output: Chapter in Book/Conference paperChapterpeer-review

Abstract

A review of the geology of the Narryer Terrane, Yilgarn Craton (Australia), is presented. The terrane comprises three geological components, these being (1) layered quartzofeldspathic gneisses and migmatites, (2) supracrustal assemblages, most notably in the Jack Hills, Mount Narryer–Mount Dugel, and Mount Murchison supracrustal belts, and (3) variably deformed late Archean granitic rocks. Quartzofeldspathic gneisses have zircon ages ranging from 3730 to 2620 Ma and include fragments of a layered mafic to ultramafic intrusion, the Manfred Complex, emplaced at 3730 Ma. The gneissic rocks have protracted metamorphic and deformational histories, with the main structural imprint imposed during late Archean granulite facies metamorphism. Supracrustal belts are dominated by quartzite and banded iron formation, with minor pelitic, calc-silicate, and conglomeratic horizons—the latter containing detrital zircon crystals up to 4400 Ma in the Jack Hills. Neodymium and hafnium isotope data are consistent with crust formation in the Narryer Terrane from c.3700 to 3500 Ma, accompanied by extensive reworking of this crust from 3600 to 2650 Ma, although there are hints that >3800 Ma source materials were also remelted. The >4000 Ma detrital zircons in the supracrustal rocks attest to the presence of even more ancient crust, although the composition and volume of that crust remains unresolved. The original, presumably igneous, host rocks of these >4000 Ma detrital zircons have not been located in the Yilgarn Craton.
Original languageEnglish
Title of host publicationEarth's Oldest Rocks
EditorsMartin J. Van Kranendonk, Vickie C. Bennett, J. Ellis Hoffmann
Place of PublicationNetherlands
PublisherElsevier
Chapter18
Pages401-433
Edition2
ISBN (Electronic)9780444639028
ISBN (Print)9780444639011
DOIs
Publication statusPublished - 28 Sep 2018

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