MIOCENE METAMORPHISM OF PAN-AFRICAN GRANITES IN THE EDOUGH MASSIF (NEALGERIA)

Authors
HAMMOR D LANCELOT J
Citation
D. Hammor et J. Lancelot, MIOCENE METAMORPHISM OF PAN-AFRICAN GRANITES IN THE EDOUGH MASSIF (NEALGERIA), Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes, 327(6), 1998, pp. 391-396
Citations number
18
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
327
Issue
6
Year of publication
1998
Pages
391 - 396
Database
ISI
SICI code
1251-8050(1998)327:6<391:MMOPGI>2.0.ZU;2-9
Abstract
The Edough Massif is the easternmost crystalline core of the Maghrebid es that represents the African segment of the west Mediterranean Alpin e belt. U-Pb zircon dating provides upper intercept ages of 595 +/- 51 My and 606 +/- 55 My for an orthogneiss of the lower unit and a defor med leucogranite of the upper pelitic unit, respectively. These ages s uggest emplacement of the two granitoids during the Pan-African orogen y. Monazites from a paragneiss sample gave a 18 +/- 5 My U-Pb age that points to a Miocene age of the high-temperature metamorphism. ((C) Ac ademie des sciences/ Elsevier, Paris).