Abstract At SW Iberia, the boundary between Iberian and South-Portuguese Terranes is traced by a suture recording the closure of Rheic and related oceans through N-NE subduction. The western segment of the suture comprises imbrications of Iberian Terrane Relative Autochthon (Neoproterozoic - Lower Palaeozoic) and Allochthonous Complexes. The Iberian Terrane Relative Autochthon is topped by Lower-Middle Devonian...
Middle/late Devonian and early Carboniferous metasedimentary sequences in the northernmost region (Porto-Espinho-Tomar) of the Ossa-Morena Zone (Portuguese Iberian Variscan Massif) contain black shales of very low to low-grade metamorphism. These metasedimentary rocks form a discrete NNW-SSE structure within a major shear zone (Porto-Tomar-Ferreira do Alentejo) and remain subparallel to the observed regional ma...
Abstract Middle/late Devonian and early Carboniferous metasedimentary sequences in the northernmost region (Porto-Espinho-Tomar) of the Ossa-Morena Zone (Portuguese Iberian Variscan Massif) contain black shales of very low to low-grade metamorphism. These metasedimentary rocks form a discrete NNW-SSE structure within a major shear zone (Porto-Tomar-Ferreira do Alentejo) and remain subparallel to the observed re...
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