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Temporal, isotopic and spatial relations of early paleozoic gondwana-margin arc magmatism, Central Transantarctic Mountains, Antarctica

Goodge, John W; Fanning, Christopher; Norman, Marc; Bennett, Victoria

Description

The Cambrian-Ordovician Ross Orogeny in Antarctica produced a voluminous magmatic belt composed mainly of post-orogenic granitoids. This magmatic belt has strong calc-alkaline characteristics reflecting a convergent-margin origin associated with subduction of paleo-Pacific oceanic lithosphere beneath cratonic East Antarctica. However, it is unclear how and when magmatism began, and to what degree magmatism was associated with syn-orogenic deformation and intra-arc extension. New U-Pb zircon...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/67004
Source: Journal of Petrology
DOI: 10.1093/petrology/egs043

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