%0 Journal Article %A Francisco José Martínez %A Joan Reche %A Alexander Iriondo %T U–Pb Shrimp-RG zircon ages of Variscan igneous rocks from the Guilleries massif (NE Iberia pre-Mesozoic basement). Geological implications %J Comptes Rendus. Géoscience %D 2008 %P 223-232 %V 340 %N 4 %I Elsevier %R 10.1016/j.crte.2007.12.006 %G en %F CRGEOS_2008__340_4_223_0