Rubio Pascual, F. J.Arenas, R.Díaz García, F.2017-11-092017-11-091992http://hdl.handle.net/10272/14137A high - pressure - low - to intermediate temperature eo - Hercynian metamorphic event characterizes the tectonothermal evolution of the Santiago Unit, in the western margin of the Ordenes Complex. P-T conditions fo r the mineral assemblages of the high - pressure event (which is essentially preserved as a very thin Si=S1 included in albite porphyroblasts in semipelitic schists) have been estimated at 493 ± 9 °C and 14.7 ± 0.7 kbar (minimum pressure). The development of the high - pressure metamorphism and the lacking of significative reequilibrium of their characteristic mineralogy, suggests that the unit (probably a fragment o f the continental margin of Condwana) has been uplifted inm ediately after undergoing subduction in the beginning of the Hercynian OrogenyspaAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/MetapelitesHigh-pressure eo-Hercynian metamorphismMafic - ultramafic Allochthonous ComplexesGaliciajournal articleopen access