serie NOVA TERRA nº 49

39 Above the suture zone (ophiolites), the upper units are formed by a 10 – 12 km thick pile of metasedimentary rocks intruded by large massifs of calc-alkaline granitoids and arc-tholeiitic gabbros. The metasedimentary rocks include a thick greywackic series with Cambrian maximum depositional ages ( Albert et al., 2015 ), while the intrusive igneous massifs have been dated at c. 500 Ma ( Andonaegui 37°N 38°N 39°N 40°N 41°N 43°N 9°W 7°W 6°W 5°W N 0 50 km CU OVD IOMZO BAO E NOZ E S EU GUTR O P- H TU O S CMU CA E NOZ ANE ROM - A SS O CO L A R T N E C N A I R E B I E N O Z CANTABRIAN ZONE -S O-SÁ R T- A IC I LAG E NOZ S E TNOM FTP FT P F T P FR MAIN THRUSTS (PARTLY REWORKEDAS NORMAL FAULTS) STRIKE-SLIP SHEAR ZONES NORMAL FAULTS RHEIC SUTURE (REWORKED) F L L FO FA F H FC FV T E DV C-G P D V C -G P FLM FLM F R P W E S T AS T U R I A N - L E O N E SE Z O N E SOUTH-PORTUGUESE ZONE (AVALONIAN FORELAND) BEJA-ACEBUCHES OPHIOLITE (REWORKED RHEIC SUTURE) UPPER ALLOCHTHONOUS TERRANE (GONDWANAN AFFINITY) OPHIOLITES (PERI-GONDWANAN BASINS) BASAL ALLOCHTHONOUS TERRANE (LATE DEVONIAN HIGH-PRESSURE BELT) PARAUTOCHTHONOUS DOMAIN AUTOCHTHONOUS DOMAIN GONDWANAN FORELAND THRUST BELT EMPLACEMENT DIRECTION FOR THE HP/L-IT BELT SEVILLA CÓRDOBA ÉVORA BADAJOZ LISBOA CÁCERES COIMBRA PORTO SALAMANCA ÁVILA MADRID BRAGANÇA PONTEVEDRA ACORUÑA LUGO OVIEDO Fig.1. GeologicalmapoftheIberianMassifandcorrelationofequivalentallochthonousterranesinNWandSWIberia.Abbreviations:AF,AzuagaFault;BAO,Beja-AcebuchesOphiolite;CA, CarvalhalAmphibolites;CF,CanalejaFault;CMU,Cubito-MouraUnit;CO,CalzadillaOphiolite;CU,CentralUnit;ET,EspinaThrust;HF,HornachosFault;IOMZO,InternalOssa-MorenaZone Ophiolites; LLF, Llanos Fault; MLF, Malpica-Lamego Fault; OF, Onza Fault; OVD, Obejo-Valsequillo Domain; PG-CVD, Puente Génave-Castelo de Vide Detachment; PRF, Palas de Rei Fault; PTF, Porto-Tomar Fault; RF, Riás Fault; VF, Viveiro Fault. Modi fi ed from Díez Fernández and Arenas (2015) . 137 R. Arenas et al. / Tectonophysics 681 (2016) 135 – 143