Precambrian Tectonics and the Physiochemical Evolution of the Continental Crust. Part I: The Gabbro-eclogite Transition

Simple item page
dc.contributor.authorEllis, David J.
dc.contributor.authorMaboko, Makenya A. H.
dc.date.accessioned2016-05-12T15:23:43Z
dc.date.available2016-05-12T15:23:43Z
dc.date.issued1992
dc.descriptionFull text can be accessed at http://www.sciencedirect.com/science/article/pii/030192689290041Len_US
dc.description.abstractWe report the first occurrence of retrograde eclogite shear zones cutting Proterozoic granulites from Australia. The Musgrave Range granulites were metamorphosed at about 12 kbar pressure and 850–900°C. The granulites then cooled isobarically and developed a variety of lower-temperature mineral reaction coronas typical of garnet granulites. These rocks are cut by a major shear zone, the Davenport Shear, in which lower-temperature, fine-grained eclogite developed. This demonstrates that mafic rocks in the deep crust can cool down into the thermodynamic stability field of eclogite without undergoing transformation to eclogite. We agree with Harte et al. (1981) that rocks lacking a fluid phase in stable tectonic regions are unlikely to maintain local equilibrium at ambient geotherm conditions until depths well within the upper mantle are reached.en_US
dc.identifier.citationEllis, D.J. and Maboko, M.A.H., 1992. Precambrian tectonics and the physicochemical evolution of the continental crust. I. The gabbro-eclogite transition revisited. Precambrian Research, 55(1), pp.491-506.en_US
dc.identifier.doi10.1016/0301-9268(92)90041-L
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2002
dc.language.isoenen_US
dc.titlePrecambrian Tectonics and the Physiochemical Evolution of the Continental Crust. Part I: The Gabbro-eclogite Transitionen_US
dc.typeJournal Articleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Precambrian Tectonics and the Physiochemical Evolution of the Continental Crust.pdf
Size:
184.01 KB
Format:
Adobe Portable Document Format
Description:
Abstract
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Department of Geology