Ahmed-Said, Y. and Leake, Bernard Elgey 1995. The petrogenesis of the Edough muscovite orthogneisses, Annaba, northeast Algeria. Journal of African Earth Sciences 21 (2) , pp. 253-269. 10.1016/0899-5362(95)00071-Z |
Abstract
The Edough muscovite orthogneisses, which are restricted to the lower part of a tectonic slice of andalusite metapelites and predate the doming of the massif, are well differentiated, S-type metagranites generated by 10–30% partial melting followed by 50–60% fractional crystallization of a melt derived from the structurally underlying biotite gneisses or a crustal material of a similar composition. These metagranites predate the M3 Tertiary metamorphism, were isochemically metamorphosed, tectonically emplaced and preserve syn-collisional affinities and hence are believed to have formed at the end of the M2 metamorphism. The composition of these metagranites and that of the 16-15 Ma post M3 Edough igneous rocks are then used to discuss the tectonic evolution of the Edough metamorphic core complex.
Item Type: | Article |
---|---|
Date Type: | Publication |
Status: | Published |
Schools: | Earth and Environmental Sciences |
Publisher: | Elsevier |
ISSN: | 1464-343X |
Last Modified: | 04 Jun 2017 08:12 |
URI: | https://orca.cardiff.ac.uk/id/eprint/74337 |
Citation Data
Cited 3 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
Edit Item |