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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Deep‐crustal granulites with migmatitic and mylonitic fabrics from the Zambezi Belt, northeastern Zimbabwe
Journal of Metamorphic Geology, Volume 9, No. 4, Year 1991
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Description
Abstract High‐P granulites contained in two allochthonous tectonic units were thrust southwards onto the northern margin of the Zimbabwe craton during the Pan‐African Zambezi orogeny. In the lower sheet, the Masoso Metamorphic Suite contains mafic garnet granulite assemblages formed during a high‐P‐T metamorphic event, although the suite as a whole is predominantly granitic. The garnet granulites occur as relicts within narrow mafic layers characterized by migmatitic and mylonitic fabrics. The annealed mylonites represent surfaces of deep‐crustal tectonic imbrication that formed immediately before the Pan‐African orogeny. Gabbros which intruded the granulites after the main phase of migmatization have formed corona textures that document a low‐P‐T metamorphic event at mid‐crustal levels. The style of deformation then changed and the Masoso Suite with its mylonitic layers was folded and thrusted southwards onto the Archaean Zimbabwe craton. Copyright © 1991, Wiley Blackwell. All rights reserved
Authors & Co-Authors
Carney, John N.
United Kingdom, Nottingham
British Geological Survey
Treloar, Peter J.
United Kingdom, London
Imperial College London
BARTON, C. M.
United Kingdom, Nottingham
British Geological Survey
Crow, Michael J.
United Kingdom, Nottingham
British Geological Survey
Evans, Jane A.
United Kingdom, Swindon
Natural Environment Research Council
SIMANGO, S.
Zimbabwe, Harare
Geological Survey Department
Statistics
Citations: 31
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1111/j.1525-1314.1991.tb00540.x
ISSN:
02634929
e-ISSN:
15251314
Study Locations
Zimbabwe