Journal article

THE STRUCTURAL EVOLUTION OF THE FYFE HILLS-KHMARA BAY REGION, ENDERBY LAND, EAST ANTARCTICA

M SANDIFORD, CJL WILSON

AUSTRALIAN JOURNAL OF EARTH SCIENCES | BLACKWELL SCIENCE | Published : 1984

Abstract

Five generations of structure (D1-D5) have been recognized in the Early Archaean supracrustal gneisses in the Fyfe Hills-Khmara Bay region in Enderby Land, East Antarctica. The D1, D2and D3events comprise the Napier structural episode. They resulted in pervasive deformation during Archaean granulite facies metamorphism, and predated the intrusion of the Middle Proterozoic Amundsen dykes. The Napier metamorphic culmination was broadly coeval with, but outlasted both, D1and D2. D3occurred during waning granulite facies metamorphism. The D4and D5events comprise the Rayner structural episode, the effects of which are largely restricted to amphibolite facies retrograde shear zones in which the Am..

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University of Melbourne Researchers