Results 81 to 90 of about 7,142 (220)

A >300 Myr Long‐Lived Topographic Highland Along the Northern North China Craton Margin Driven by Multistage Continental Convergence

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Topographic highlands commonly develop along convergent plate boundaries through long‐term processes such as subduction and continental collision. However, the pre‐Cenozoic mountain‐building history of deep‐time orogenic systems in northeastern Pangaea remains poorly constrained due to later tectonic overprinting and denudation.
Heng Peng, Licheng Wang, Jianqiang Wang, Yazuo Niu, Yahui Yue, Jingbo Sun, Bitian Wei, Chiyang Liu, Massimiliano Zattin, Lin Ding   +9 more
wiley   +1 more source

SUBMONTANE PARAMESEȘ DEPRESSIONS IN THE STRUCTURAL CONTEXT OF THE TRANSYLVANIAN BASIN

Studia Universitatis Babeş-Bolyai: Geographia, 2016
Submontane Parameseș Depressions in the Structural Context of the Transylvanian Basin. The structure of the Alpine orogeny of the Silvania Mountains reveals fascinating and controversial Variscan remnants of the Hercynian orogeny.
I. A. IRIMUŞ, Corina BOGDAN
doaj   +2 more sources

The transition from Variscan collision to continental break-up in the Alps: advice from the comparison between natural data and numerical model predictions

, 2014
Records of Variscan structural and metamorphic imprints in the Alps indicate that before Pangaea fragmentation, the continental lithosphere was thermally and mechanically per- turbed during Variscan subduction and collision.
M.I. Spalla, Manuel Roda, Michele Zucali, A.M. Marotta, G. Gosso, Davide Zanoni, G. Rebay, D. Zanoni, M. Roda, M. Zucali, Anna Maria Marotta, REBAY, GISELLA, Guido Gosso, Maria Iole Spalla   +13 more
core   +1 more source

A Common Mantle Source for the Endogenous CO2 Degassed at the Eifel (Western Germany) and the Ardennes (Eastern Belgium) Regions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Tectonic CO2 Earth degassing is globally relevant and has probably controlled climate on a geological scale (Brune et al., 2019, https://doi.org/10.1038/s41561‐017‐0003‐6). Endogenous CO2 outgassing from rifting areas remains poorly constrained, with most available data from the East African Rift.
Lisa Ricci, Francesco Frondini, Daniele Morgavi, Stefano Caliro, Andrea Luca Rizzo, Tobias P. Fischer, Giovanni Chiodini   +6 more
wiley   +1 more source

Late Ediacaran juvenile magmatism in the Variscan Monts-du-Lyonnais metamorphic complex (Massif Central, France)

BSGF - Earth Sciences Bulletin
The identification of oceanic sutures is key to understanding the evolution of the Paleozoic Variscan belt and the structure of the West European lithosphere.
Couzinié Simon, Laurent Oscar, Bouilhol Pierre, Chelle-Michou Cyril, Ganzhorn Anne-Céline, Gardien Véronique, Moyen Jean-François   +6 more
doaj   +1 more source

Flow of partially molten crust controlling construction, growth and collapse of the Variscan orogenic belt: the geologic record of the French Massif Central

BSGF - Earth Sciences Bulletin, 2020
We present here a tectonic-geodynamic model for the generation and flow of partially molten rocks and for magmatism during the Variscan orogenic evolution from the Silurian to the late Carboniferous based on a synthesis of geological data from the French
Vanderhaeghe Olivier, Laurent Oscar, Gardien Véronique, Moyen Jean-François, Gébelin Aude, Chelle-Michou Cyril, Couzinié Simon, Villaros Arnaud, Bellanger Mathieu   +8 more
doaj   +1 more source

Granitoide der europäischen Varisziden : ein Einblick in ihre Platznahme- und tektonometamorphe Geschichte

, 2008
This work analyses several granitic bodies of the Variscan Orogen of Central and Western Europe in order to improve our knowledge about different aspects of their evolution, regarding their ascent and emplacement mechanisms, as well as their deformation ...
Galadí-Enríquez, Elena
core  

Distribution of natural radionuclides in the soils and assessment of radiation hazards in the Khrami Late Variscan crystal massif (Georgia)

Heliyon, 2019
This study was performed to determine the distributions of radionuclides (238U, 232Th and 40K naturally occurring in Khrami Late Variscan crystal massif and soils overlapping its adjacent territory built by Neogene and Quaternary lava using a gamma-ray ...
Kakhaber Kapanadze, Archil Magalashvili, Platon Imnadze   +2 more
doaj   +1 more source

U-Pb zircon age of Ordovician magmatism in the Albera Massif (Eastern Pyrenees)

Geologica Acta, 2011
New geochronological data from the Albera Massif confirm the presence of an Early – Mid Ordovician igneous event (472 - 465Ma) recorded in the pre-Variscan rocks of the Pyrenees.
M. LIESA TORRE-MARÍN, J. CARRERAS, P. CASTIÑEIRAS GARCÍA, J.M. CASAS, M. NAVIDAD, M. VILÀ   +5 more
doaj  

Tectonic framework of the Cabo Ortegal Complex: A slab of lower crust exhumed in the Variscan orogen (northwestern Iberian Peninsula)

, 2002
The Cabo Ortegal Complex is a composite allochthonous terrane that was thrust onto the western edge of Gondwana during the Variscan orogeny. It is formed of two main tectonic units: the Upper Tectonic unit, comprising rocks affected by highpressure (P)
Farias Arquer, Pedro José, Galán, Gumer, A. Marcos, Fernández Rodríguez, Francisco José, Marcos Vallaure, Alberto, Llana Fúnez, Sergio, P. Farias, F.J. Fernández, G. Galán, S. Llana-Fúnez   +9 more
core   +1 more source