Proterozoic East Gondwana: Supercontinent Assembly and Breakup
This volume focuses on Late Mesoproterozoic to early Cambrian events related to Gondwana assembly and break up. The nineteen papers provide a comprehensive review including advanced knowledge and new data from all critical areas of East Gondwana. The recent knowledge of the evolution of East Gondwana, which was regarded as an integral part of the Mesoproterozoic supercontinent Rodinia, is the major theme of the volume, which is reinforced by highlighting this radical and new understanding of the evolution of this region.
This volume is of use as both a text and reference book for Earth Science postgraduates, and should appeal worldwide to professional geologists with an interest in Rodinia, Gondwana and that important transition from the Proterozoic to the Phanerozoic Earth.
Extensional collapse of the late Neoproterozoic–early Palaeozoic East African–Antarctic Orogen in central Dronning Maud Land, East Antarctica
Published:January 01, 2003
J. Jacobs, R. Klemd, C. M. Fanning, W. Bauer, F. Colombo, 2003. "Extensional collapse of the late Neoproterozoic–early Palaeozoic East African–Antarctic Orogen in central Dronning Maud Land, East Antarctica", Proterozoic East Gondwana: Supercontinent Assembly and Breakup, M. Yoshida, B. F. Windley, S. Dasgupta
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The East African–Antarctica Orogen resulted from the continent–continent collision of East and West Gondwana, or parts thereof, during the Pan-African event at c. 650–510 Ma. The collision overprinted large areas of older, mainly Mesoproterozoic, crust up to granulite facies grade in East Antarctica. The collision history is well documented by folding and thrusting, isothermal decompression and metamorphic zircon growth at c. 580–560 Ma (Pan-African I). The convergence was succeeded by an extensional phase, probably representing orogenic collapse. This Pan-African II event at c. 530–510 Ma is characterized by large-scale extensional structures, finally resulting in the post-tectonic...