Journal article

Structure of the Early Palaeozoic Cape River Metamorphics, Tasmanides of north Queensland: evaluation of the roles of convergent and extensional tectonics

CL Fergusson, RA Henderson, KJ Lewthwaite, D Phillips, IW Withnall

AUSTRALIAN JOURNAL OF EARTH SCIENCES | TAYLOR & FRANCIS LTD | Published : 2005

Abstract

The Early Palaeozoic Cape River Metamorphics consist mainly of psammitic gneiss and schist and occur as an extensive linear belt at the western margin of the Charters Towers Province 200 km southwest of Townsville in the northern Tasmanides. A prominent foliation (S2) is the main structure in the belt and is associated with tight to isoclinal folds, subparallel mineral and intersection lineations, and boudinaged pods of vein quartz and pegmatite. In the southwest, the main foliation is a crenulation cleavage (S2) related to D2 deformation. It overprints steeply dipping foliation (S1) formed in a D1 deformation but no associated folds have been found. Gently plunging, upright, open folds (D3 ..

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