The Canigou orthogneisses (Eastern Pyrenees, France, Spain): an early Ordovician rapakivi granite laccolith and its contact aureole

Authors
Barbey, P Cheilletz, A Laumonier, B
Citation
P. Barbey et al., The Canigou orthogneisses (Eastern Pyrenees, France, Spain): an early Ordovician rapakivi granite laccolith and its contact aureole, CR AC S IIA, 332(2), 2001, pp. 129-136
Citations number
22
Categorie Soggetti
Earth Sciences
Journal title
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DELA TERRE ET DES PLANETES
ISSN journal
12518050 → ACNP
Volume
332
Issue
2
Year of publication
2001
Pages
129 - 136
Database
ISI
SICI code
1251-8050(20010130)332:2<129:TCO(PF>2.0.ZU;2-D
Abstract
From new field and single zircon geochronological data, we reinterpret the structure of the Canigou orthogneisses (Eastern Pyrenees) as an Early Ordov ician rapakivi granite laccolith. This laccolith is surrounded by a contact metamorphic aureole predating the Hercynian tectono-metamorphic events. Th is aureole consists of migmatites at the contact with unmelted orthogneisse s, of skarns in the carbonate beds and of retrogressed Al-rich porphyroblas ts over some hundred metres beyond the contact. The metallogenic activity ( Fe, Fl observed around the massif might be related to the laccolith emplace ment. (C) 2001 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.