Variscan cycle

JF Simancas - The Geology of Iberia: A Geodynamic Approach …, 2019 - Springer
This chapter summarizes the classical and recent ideas together with the geodynamic
hypotheses regarding the Variscan Cycle in Iberia, as an introduction to the more extensive …

A seismic geotraverse across the Iberian Variscides: Orogenic shortening, collisional magmatism, and orocline development

JF Simancas, P Ayarza, A Azor, R Carbonell… - …, 2013 - Wiley Online Library
A crustal geotraverse through the Iberian Variscides is presented by integrating the
available geological and seismic profiling data. Different modes of orogenic shortening are …

SHRIMP U–Pb zircon dating of the Valencia del Ventoso plutonic complex, Ossa-Morena Zone, SW Iberia: Early Carboniferous intra-orogenic extension-related 'calc …

A Cambeses, JH Scarrow, P Montero, JF Molina… - Gondwana …, 2015 - Elsevier
Mantle-and crustal-derived orogenic magmas provide insights into sources tapped during
terrane accretion and supercontinent amalgamation. During Pangea formation …

An active seismic zone in intraplate West Iberia inferred from high‐resolution geophysical data

C Matos, S Custódio, J Batló… - Journal of …, 2018 - Wiley Online Library
Intraplate Iberia is a region of slow lithopsheric deformation (< 1 mm/yr) with significant
historical earthquake activity. Recent high‐quality instrumental data have shown that small …

Constraints of mantle and crustal sources and interaction during orogenesis: a zircon SHRIMP U-Th-Pb and O isotope study of the 'calc-alkaline'Brovales pluton, Ossa …

A Cambeses, P Montero, JF Molina, T Hyppolito, F Bea - Lithos, 2019 - Elsevier
Magmas generated by melting of the continental crust and the mantle during collapse of
collisional orogenic belts are compositionally heterogeneous and preserve evidence for …

[HTML][HTML] Preservation of the Iberian Tethys paleomargin beneath the eastern Betic mountain range

J Morales, A Molina-Aguilera, F de Lis Mancilla… - Gondwana …, 2022 - Elsevier
We obtain P-wave receiver functions from teleseismic earthquake recordings at a dense
seismic broadband transect, deployed along 170 km across the Betic mountain range in …

Compositional evolution of the Variscan intra-orogenic extensional magmatism in the Valencia del Ventoso Plutonic Complex, Ossa-Morena Zone (SW Iberia): a view …

A Cambeses, JF Molina, I Morales, C Lázaro… - Minerals, 2021 - mdpi.com
The Ossa-Morena Zone (OMZ), SW Iberia, has numerous Lower Carboniferous
compositionally zoned plutons that formed in a Variscan intra-orogenic extensional setting …

Microstructural, compositional and petrophysical properties of mylonitic granodiorites from an extensional shear zone (Rhodope Core complex, Greece)

R Punturo, R Cirrincione, E Fazio, P Fiannacca… - Geological …, 2014 - cambridge.org
At the southern boundary of the Rhodope Massif, NE Greece, the Kavala Shear Zone (KSZ)
represents an example of the Eastern Mediterranean deep-seated extensional tectonic …

Seismic Sequence Analysis of the Arraiolos Zone, South Portugal, and Its Seismotectonic Implications: A Detailed Analysis of the Period 15 January–30 June 2018

P Wachilala, J Borges, B Caldeira, M Bezzeghoud - Remote Sensing, 2023 - mdpi.com
The Arraiolos Zone has been affected by the persistent superficial seismicity (focal depth<
20 km) of a weak magnitude (M< 4) and some events of a higher magnitude (M> 4), and is …

Subsurface mapping in the Iberian Pyrite Belt using seismic reflection profiling and potential-field data

J Carvalho, C Inverno, JX Matos, C Rosa… - International Journal of …, 2017 - Springer
Abstract The Iberian Pyrite Belt (IPB) hosts world-class massive sulphide deposits, such as
Neves-Corvo in Portugal and Rio Tinto in Spain. In Portugal, the Palaeozoic Volcanic …