Results 41 to 50 of about 1,858 (217)

Exhuming a cold case: The early granodiorites of the northwest Iberian Variscan belt—A Visean magmatic flare-up? [PDF]

, 2018
In this study we report laser ablation–inductively coupled plasma–mass spectrometer U-Pb ages of granitoids from the so-called early granodiorites of the northwest Iberian Variscan belt.
Gutiérrez-Alonso, G., Gärtner, Andreas, Gärtner, A., Alicia López-Carmona, López Carmona, Alicia, J. Fernández-Suárez, López-Carmona, Alicia, G. Gutiérrez-Alonso, Fernández-Suárez, Javier, Fernández Suárez, Javier, Gutiérrez-Alonso, Gabriel, Andreas Gärtner, Fernández-Suárez, J., Gutiérrez Alonso, Gabriel   +13 more
core   +1 more source

Thermal evolution of a Variscan syn-orogenic intracontinental basin (Servoz basin, Western Alps): RSCM geothermometry and geochronology

Swiss Journal of Geosciences, 2022
The Variscan basement of the Aiguilles-Rouges massif (Western Alps) exposes the Servoz syncline which consists of a metavolcano-sedimentary sequence composed of (i) a volcanic unit of unknown age and origin, (ii) Early Carboniferous sedimentary series ...
Jonas Vanardois, Abdeltif Lahfid, Pierre Trap, Brice Lacroix, Françoise Roger, Laurent Guillou-Frottier, Didier Marquer, Jean-Louis Paquette, Jérémie Melleton   +8 more
doaj   +1 more source

Kinematics, deformation partitioning and late Variscan magmatism in the Agly massif, Eastern Pyrenees, France

BSGF - Earth Sciences Bulletin, 2020
In order to constrain the finite deformation pattern of the Variscan basement of the Agly massif, a detailed structural analysis over the whole Agly massif was performed.
Vanardois Jonas, Trap Pierre, Goncalves Philippe, Marquer Didier, Gremmel Josselin, Siron Guillaume, Baudin Thierry   +6 more
doaj   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Correlating magnetic fabrics with finite strain : comparing results from mudrocks in the Variscan and Appalachian Orogens

, 2004
New magnetic anisotropy data from Variscan mudstones collected in the Cantabrian Arc, N Spain constrain the corresponding strain (shortening). The results are based on our previous study of mudrocks from the Valley and Ridge Province (Appalachians) where
Van der Pluijm, Ben A., Parés, Josep María, Parés, Josep Mª, Van der Pluijm, B.A., Van Der Pluijm, B. A., Parés, J. M.   +5 more
core   +1 more source

Tectonometamorphic evolution of the Aracena metamorphic belt (SW Spain) resulting from ridge-trench interaction during Variscan plate convergence

, 2006
[1] The Aracena metamorphic belt is a high-temperature/low-pressure (HT/LP) band located at the southern end of the European Variscan chain. It marks a suture between Armorica and Avalonia.
Castro, A., Fernández Rodríguez, Carlos, El-Biad, M., Díaz Azpiroz, Manuel   +3 more
core   +1 more source

Late Carboniferous Paleomagnetism From North Qiangtang Block Reveals a Multibranched Paleo‐Tethys Ocean

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The North Qiangtang Block occupies a pivotal position within the eastern Tethyan realm, and its paleogeographic reconstruction is critical for constraining Tethyan geometry and evolution. However, its Late Paleozoic paleogeography and Paleo‐Tethyan Ocean–continent configuration remain controversial due to limited reliable age‐constrained ...
Jiahui Zhang, Xin Cheng, Zhongshan Shen, Daniel Pastor‐Galán, Bitian Wei, Longyun Xing, Dongmeng Zhang, Nan Jiang, Mengting Zhong, Shuqi Lan, Muhammad Rizwan, Chenglong Deng, Hanning Wu   +12 more
wiley   +1 more source

Post-depositional tectonic modifications of VMS deposits in Iberia and its economic significance

, 2011
The original stratigraphic relationships and structure of VMS deposits are commonly obscured by deformation. This can also affect their economic significance, as shown by several Iberian Pyrite Belt (IPB, SW Iberia) examples.
Castroviejo Bolibar, Ricardo, Quesada, Cecilio, Soler, Miguel   +2 more
core   +1 more source

From Inventories to Insights: Environmental Gradients Structuring Macro‐Moths Assemblages Recorded in Nature Reserves

Ecology and Evolution, Volume 16, Issue 6, June 2026.
The article analyses macro‐moth (Lepidoptera) inventory data from 292 nature reserves across the Czech Republic, comprising 941 species. It examines how reserve characteristics, geographic position and altitude influence species richness, community composition and their associations with species traits.
Zuzana Kubincová, Zdeněk Faltýnek Fric, Radek Hejda, Martin Konvička, Lukáš Spitzer, Alena Sucháčková, Pavel Vrba, Jan Walter   +7 more
wiley   +1 more source

On the development of kink-bands: A case study in the Westasturian-Leonese Zone (Variscan belt, NW Spain)

BSGF - Earth Sciences Bulletin, 2020
A field analysis of kink bands developed in slates from three areas (Grandas, Boal and Luarca areas) of the Westasturian-Leonese Zone (Iberian Variscan belt) is presented.
Aller Jesús, Bastida Fernando, Bobillo-Ares Nilo C.   +2 more
doaj   +1 more source