Title of article
Discovery of an alkaline orthogneiss in the eclogite-bearing Cellier Unit (Champtoceaux Complex, Armorican Massif): a new witness of the Ordovician rifting
Author/Authors
Ballèvre، نويسنده , , Michel and Capdevila، نويسنده , , Ramon and Guerrot، نويسنده , , Catherine and Peucat، نويسنده , , Jean-Jacques، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
9
From page
303
To page
311
Abstract
An alkaline orthogneiss from the Lower Allochton of the Champtoceaux Complex has been identified by its mineralogy and its whole-rock chemistry, including trace elements and Sr and Nd isotopes. An U/Pb study of the zircons using the conventional method gives an upper intercept age of 481 +6/−5 Ma. The alkaline orthogneiss is thus a new witness of the Ordovician rifting in the Variscan Belt. To cite this article: M. Ballèvre et al., C. R. Geoscience 334 (2002) 303–311.
Keywords
FRANCE , FRANCE , Ordovician , Variscan belt , Armorican Massif , Massif armoricain , cha??ne Varisque , alkaline orthogneiss , Champtoceaux Complex , orthogneiss alcalin , Ordovicien , complexe de Champtoceaux
Journal title
Comptes Rendus Geoscience
Serial Year
2002
Journal title
Comptes Rendus Geoscience
Record number
2279440
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