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Palaeoproterozoic assembly of the North China Craton

Published online by Cambridge University Press:  20 March 2001

GUOCHUN ZHAO
GUOCHUN ZHAO
Affiliation:
Tectonics Special Research Centre, School of Applied Geology, Curtin University of Technology, GPO Box U1987, Perth, W.A. 6845, Australia Present address: Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China; E-mail: gzhao@hkucc.hku.hk.
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Abstract

The basement of the North China Craton consists of the Eastern and Western blocks, separated by the Central Zone. Both the Eastern and Western blocks are dominated by late Archaean tonalitic–trondhjemitic–granodioritic gneiss complexes interdigitated with minor supracrustal rocks metamorphosed at ∼2.5 Ga, with anticlockwise P–T paths. The Central Zone is composed of reworked late Archaean components and Palaeoproterozoic juvenile crustal materials that underwent regional metamorphism at ∼1.85 Ga, with clockwise P–T paths involving isothermal decompression as a result of collision between the Eastern and Western blocks, which resulted in the final assembly of the North China Craton.

Type
RAPID COMMUNICATION
Information
Geological Magazine , Volume 138 , Issue 1 , January 2001 , pp. 87 - 91
Copyright
© 2001 Cambridge University Press

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