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Structural and geochronological constraints of early Ross orogenic deformation in the Pensacola Mountains, Antarctica

Curtis, Michael L; Millar, Ian L; Storey, Bryan; Fanning, Christopher

Description

During end-Neoproterozoic to early Paleozoic time, the southern margin of Gondwana was affected by widespread subduction-related orogenesis. In East Antarctica this event is known as the Ross orogeny, whose manifestation is exposed along the 3500 km length of the Transant-arctic Mountains. In the Pensacola Mountains, the Ross orogeny is characterized by two contractional deformation events, which bracket a brief period of latest Middle Cambrian to early Late Cambrian extension and...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/80336
Source: Geological Society of America Bulletin
DOI: 10.1130/B25170.1

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