Results 11 to 20 of about 1,858 (217)

The Variscan Belt of Western Europe 1

open access: yes, 2023
International audienceThis chapter deals with the metamorphic and structural aspects of the principal events responsible for the early architecture of the French Variscan belt, before the tectono-metamorphic events coeval with its late- and post-orogenic
Faure, Michel
core   +4 more sources

The Variscan belt: correlations and plate dynamics [PDF]

open access: yesInternational Journal of Earth Sciences, 2017
International audienceThe new series of international conferences focused on thePalaeozoic evolution of the European lithosphere startedin 2007 in Orléans, followed by the successful meeting in2012 in Sassari, and the last one in 2015 in Rennes. Thefirst
Pavel Pitra   +7 more
core   +3 more sources

STRUCTURAL AND METAMORPHIC EVOLUTION OF VARISCAN BASEMENT ROCKS OF THE ALPS IN COMPARISON WITH OTHER PORTIONS OF THE EUROPEAN VARISCAN BELT [PDF]

open access: yes, 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   +2 more sources

A Sb ± Au mineralizing peak at 360 Ma in the Variscan belt [PDF]

open access: yesBSGF - Earth Sciences Bulletin, 2019
40Ar/39Ar absolute dating on tobelite (an ammonium-rich white mica) has been performed in order to provide geochronological constraints on the Sb ± Au mineralization and hydrothermalism at the Saint-Aubin-des-Châteaux base metal-Sb ± Au occurrence ...
Pochon Anthony   +10 more
doaj   +3 more sources

Late Carboniferous paleoelevation of the Variscan Belt of Western Europe [PDF]

open access: yesEarth and Planetary Science Letters, 2021
International audienceWe present the first stable isotope paleoaltimetry estimates for the hinterland of the eroded Variscan Belt of Western Europe based on the hydrogen isotope ratios of muscovite from syntectonic leucogranites that have been emplaced ...
Mulch, Andreas   +3 more
core   +4 more sources

The collapse of the Variscan belt: a Variscan lateral extrusion thin-skinned structure in NW Iberia

open access: yesInternational Geology Review, 2020
The Iberian Massif of the Variscan Belt is a big area of exposed Palaeozoic rocks holding an S-shaped regional bend. Profuse data and genetic models support the existence of the northern arch (Ibero-Armorican Orocline: IAO) created by Late-Variscan ...
Alejandro Díez-Montes (2843372)   +2 more
core   +2 more sources

Kinematics of the Forcarei Synform (NW Iberian Variscan belt)

open access: yesGeological Society, London, Special Publications, 2011
The Forcarei Synform is a kilometric fold developed in the hinterland of the NW Iberian Variscan belt. A detailed analysis of the synform, based on quartz fabrics and kinematic markers, shows pervasively deformed rocks that have been continuously ...
Díaz García, Florentino Ángel   +5 more
core   +2 more sources

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+1 more source

Age of the basement beneath the Mesozoic Lusitanian Basin revealed by granitic xenoliths from the Papôa volcanic breccia (West Iberia)

open access: yesGeologica Acta, 2020
The dyke of the Papôa volcanic breccia cross-cutting the Lower Jurassic sequence of the Lusitanian Basin (West Iberia) contains granitic xenoliths. In this study, for the first time, U-Th-Pb zircon analysis of two xenoliths yielded 298±4Ma for biotite ...
M.F. Pereira   +3 more
doaj   +3 more sources

Geology of the contact area between the Internal and External Nappe Zone of the Sardinian Variscan Belt (Italy): new insights on the complex polyphase deformation occurring in the hinterland-foreland transition zone of collisional belts

open access: yesJournal of Maps, 2022
This study aims to decipher the structural evolution of a sector of the Nappe Zone in the Sardinian Variscan Belt. We investigated the Barbagia Thrust between the Meana Sardo Unit (belonging to the External Nappe Zone) in the footwall and the Barbagia ...
A. Petroccia   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy