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Provenance of late Palaeozoic metasediments of the SW South American Gondwana margin: a combined U-Pb and Hf-isotope study of single detrital zircons

Augustsson, Carita; Muenker, Carsten; Bahlburg, Heinrich; Fanning, Christopher

Description

Combined U-Pb and Lu-Hf isotope measurement of single detrital zircon grains in Carboniferous metasediments from Patagonia delineate the source areas of the sediments, The detritus, represented by four metasandstone samples, was deposited prior to onset of subduction in Late Carboniferous time along the south Patagonian proto-Pacific Gondwana margin. A broad series of detrital zircon age peaks (0.35-0.7 Ga, 0.9-1.5 Ga) and a large spread (0.3-3.5 Ga) in the age spectra require numerous sources....[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
URI: http://hdl.handle.net/1885/17174
Source: Journal of the Geological Society
DOI: 10.1144/0016-76492005-149

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