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The history of granulite-facies metamorphism and crustal growth from single zircon U-Pb geochronology: Namaqualand, South Africa

Abstract:

The Namaqualand Metamorphic Complex is a well-exposed, Mesoproterozoic, low-pressure, amphibolite-granulite-facies terrane flanking the Archaean Kaapvaal Craton of southern Africa. Previous isotopic dating in the region suggests an ~150 my period of prograde granulite-facies metamorphism and episodic granite emplacement in the mid-crust. In contrast, thermal modelling suggests that sub- and superjacent magmatic accretion should not have exceeded 30 my in duration. This enigma is resolved by p...

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Publication status:
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Authors


Armstrong, RA More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Journal:
JOURNAL OF PETROLOGY
Volume:
40
Issue:
12
Pages:
1747-1770
Publication date:
1999-12-05
DOI:
EISSN:
1460-2415
ISSN:
0022-3530
URN:
uuid:ef680e87-1669-4a5e-a472-41609fe746f8
Source identifiers:
176303
Local pid:
pubs:176303
Language:
English
Keywords:

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