BSGF - Earth Sciences Bulletin, 2022 Based on new structural, petrological and U-Th-Pb geochronological data, a reappraisal of the Variscan tectono-metamorphic history of the Pelvoux Massif (External Crystalline Massif, French Alps) is proposed with the aim to understand the flow pattern ...
Fréville Kévin +7 more
doaj +1 more source
Reconsidering the Variscan Basement of Southern Tuscany (Inner Northern Apennines)
Geosciences, 2021 The Pre-Mesozoic units exposed in the inner Northern Apennines mostly consist of Pennsylvanian-Permian successions unconformably deposited on a continental crust consolidated at the end of the Variscan orogenic cycle (Silurian-Carboniferous).
Enrico Capezzuoli +7 more
doaj +1 more source
Radial anisotropy and S-wave velocity depict the internal to external zone transition within the Variscan orogen (NW Iberia) [PDF]
Solid Earth, 2022 The cross-correlation of ambient noise records registered by seismic networks has proven to be a valuable tool to obtain new insights into the crustal structure at different scales.
J. Acevedo +5 more
doaj +1 more source
Niemcza diorites and moznodiorites (Sudetes, SW Poland): a record of changing geotectonic setting at ca. 340 Ma [PDF]
, 2013 Granites sensu lato in the Sudetes intruded in several episodes during the Variscan orogeny recording different stages of crust and mantle evolution.
Kierczak, J. +5 more
core +1 more source
STRUCTURAL AND METAMORPHIC EVOLUTION OF VARISCAN BASEMENT ROCKS OF THE ALPS IN COMPARISON WITH OTHER PORTIONS OF THE EUROPEAN VARISCAN BELT [PDF]
, 2021 The tectonic evolution of the Southern Variscan belt is still poorly understood if compared with that of the central European Variscan belt. That is due to intense late-Variscan to Alpine re-working, in particular in the Alpine axial zone.
FILIPPI, MARCO
core +1 more source
Geology of the Montigiu Nieddu metamorphic basement, NE Sardinia (Italy)
Journal of Maps, 2020 A geological map at 1:10,000 scale is presented that shows the distribution of the metamorphic rock units in the area of Montigiu (Mt.) Nieddu (NE Sardinia). These units belong to the High-Grade Metamorphic Complex in the Inner Zone of the Variscan chain
Gabriele Cruciani +3 more
doaj +1 more source
New magnetotelluric data through the boundary between the Ossa Morena and Centroiberian Zones [PDF]
, 2005 The south-western part of the Iberian Peninsula, including the southern branch of the Iberian Massif, has recently been the subject of several magnetotelluric (MT) studies.
Almeida, E. +13 more
core +1 more source
Remelting of Ordovician migmatites and granites during Variscan high-grade metamorphism (Aar Massif, Central Alps, Switzerland) [PDF]
Swiss Journal of GeosciencesThe remelting of felsic gneisses, migmatites and granite during a later orogenic cycle can produce rocks of different age with comparable field appearance, microstructure, mineralogical and chemical composition.
Urs Schaltegger +9 more
doaj +3 more sources
Geosciences, 2020 Late-Variscan granitoid rocks of trondhjemitic and granitic composition, intruded in migmatitic paragneisses in the north-eastern Peloritani Mountains (southern Italy) at ~310 Ma and ~300 Ma, respectively, exhibit a range of deformation microstructures ...
Eugenio Fazio +3 more
doaj +1 more source
Geologica Acta, 2021 Post-collisional mafic dykes crosscut the Paleozoic metamorphic basement and late-Variscan plutons in Les Guilleries massif (Catalan Coastal Ranges, NE Iberia).
Esteban Mellado +3 more
doaj +1 more source