LES FORMATIONS MAGMATIQUES DE POROHUI (SINALOA); TEMOINS DE L'EVOLUTION GEODYNAMIQUE MESOZOIQUE ET TERTIAIRE DES CORDILLERES MEXICAINES ;THE MAFIC IGNEOUS ASSEMBLAGES FROM POROHUI, SINALOA; REMNANTS OF THE GEODYNAMIC EVOLUTION OF THE MEXICAN CORDILLERA DURING THE MESOZOIC AND TERTIARY
