Continental reworking during overprinting orogenic events, southern Prince Charles Mountains, east Antarctica

Simple item page
dc.contributor.authorPhillips, G.
dc.contributor.authorKelsey, D.
dc.contributor.authorCorvino, A.
dc.contributor.authorDutch, R.
dc.date.issued2009
dc.description© The Author 2009. Published by Oxford University Press. All rights reserved.
dc.description.abstractIn situ electron microprobe monazite dating and mineral equilibria modelling of amphibolite-granulite-facies metapelites from the southern Prince Charles Mountains, East Antarctica has been carried out to unravel the P-T conditions, spatial extent and structural style of two overprinting orogenic records. This study shows that: (1) rocks of the northern Palaeoproterozoic Lambert Complex were pervasively reworked at peak conditions (6·5-7·1 kbar and 790-810°C) during the Early Neoproterozoic Rayner orogenic event; (2) rocks of the southern Lambert Complex experienced pervasive deformation and metamorphism at peak conditions (5·8-6·1 kbar and 625-635°C) during Early Palaeozoic Prydz orogenic activity; (3) in regions of the Lambert Complex reworked during the Rayner orogenic event, Prydz-aged orogenesis was highly localized. The distribution of orogenic activity pertaining to the Rayner and Prydz orogenic events in the southern Prince Charles Mountains can be attributed to (1) the development of a southward directed (current coordinates) orogenic front that propagated from an Early Neoproterozoic collision between India and Antarctica, and (2) rock fertility (i.e. availability of free fluid) during Early Palaeozoic intraplate orogenesis that was driven by far-field stresses generated by a collision of India-Antarctica with the Mawson Craton. © The Author 2009. Published by Oxford University Press. All rights reserved.
dc.description.statementofresponsibilityG. Phillips, D. E. Kelsey, A. F. Corvino and R. A. Dutch
dc.identifier.citationJournal of Petrology, 2009; 50(11):2017-2041
dc.identifier.doi10.1093/petrology/egp065
dc.identifier.issn0022-3530
dc.identifier.issn1460-2415
dc.identifier.urihttp://hdl.handle.net/2440/56866
dc.language.isoen
dc.publisherOxford Univ Press
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0665094
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0665094
dc.source.urihttps://doi.org/10.1093/petrology/egp065
dc.subjectcontinental reworking
dc.subjectmineral equilibria modelling
dc.subjectmonazite
dc.subjectPrydz orogenic event
dc.subjectRayner orogenic event
dc.titleContinental reworking during overprinting orogenic events, southern Prince Charles Mountains, east Antarctica
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Earth and Environmental Sciences publications