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Sinistrai transcurrent transpression at the Ossa-Morena Zone / Central-lberian Zone boundary: the Portalegre-Esperanga shear zone (Portugal)

Authors: Francisco Pereira, M.; Brandáo Silva, J.;

Sinistrai transcurrent transpression at the Ossa-Morena Zone / Central-lberian Zone boundary: the Portalegre-Esperanga shear zone (Portugal)

Abstract

En el borde sur del Macizo Ibérico, al NE del Alentejo (Portugal) se ha reconocido la zona de cizalla varíscica de Portalegre-Esperanga (PESZ). Esta zona incluye rocas del basamento de Ossa Morena del Proterozoico superior sobre las que reposa, discordante, una secuencia de rocas sedimentarías del Paleozoico Inferior de la Zona Centroibéríca. El análisis estructural de la PESZ revela una compleja arquitectura tridimensional caracterizada por una foliación milonitica muy vertical izad a, una lineación de estiramiento subhorizontal y simultánea una componente direccional (desgarre) y oblicua-direccional (inversa o normal) de sentido sinistrorso. Se ha interpretado como parte de un regimen de deformación transpresivo, en el que predomina una partición de la deformación y una dirección de transporte tectónico paralela al orógeno

Country
Spain
Related Organizations
Keywords

Upper crustal levels, Transcurrent transpression, Strain partitioning, Sinistrai shearing, Central-lberian / Ossa-Morena zones boundary

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green