Results 61 to 70 of about 871 (186)

Status of Basement Terranes in Orogens: Insights From the Cadomian Domain of the North Armorican Variscides, Western France

open access: yes, 2021
The stable vs mobile behaviour of basement terranes in orogens is discussed about the North Armorican Cadomian‐floored domain (NAD) in the Armorican Variscides, Western France.
Duperret, Anne   +18 more
core   +1 more source

Tracking Sediment Mixing Along the Lower Danube River From the Carpathians to the Black Sea

open access: yesTerra Nova, Volume 37, Issue 6, Page 413-420, December 2025.
ABSTRACT We use detrital zircon U–Pb geochronology as a sediment provenance tracer in modern river sands to better understand how tectonic, climatic, and anthropogenic processes modulate sediment transport dynamics of the Carpathians to the Black Sea source to sink system.
Iulian Pojar   +5 more
wiley   +1 more source

Reorganization of Northern Peri-Gondwanan Terranes at Cambrian–Ordovician Times: Insights from the Detrital Zircon Record of the Ossa-Morena Zone (SW Iberian Massif)

open access: yesLithosphere, 2022
The Ossa-Morena Zone constitutes a fringe Gondwana-related terrane all along the Paleozoic. This continental block has been classically interpreted as being attached to a portion of the northern Gondwanan margin located close to the West African Craton ...
Cristina Accotto   +4 more
doaj   +1 more source

Crustal architecture studies in the Iranian Cadomian arc: insights into source, timing and metallogeny

open access: yes, 2021
The Jalal Abad magmatic rocks, situated at the southern edge of the Saghand-Bafgh-Zarand district, include a thick pile of Cadomian extrusive and pyroclastic units intruded by younger granitoid stocks.
Sepidbar, Fatemeh   +3 more
core   +1 more source

The role of the proto-Alpine Cenerian Orogen in the Avalonian- Cadomian belt

open access: yesAustrian Journal of Earth Sciences, 2023
Abstract The proto-Alpine Cenerian orogen (Ediacaran-Ordovician) and the Cadomian orogen (Ediacaran-Cambrian), remnants of which are exposed in the central European Variscides, should be defined as two distinct and spatially separated coastal orogens within the Avalonian-Cadomian belt.
Fritz Finger, Gudrun Riegler
openaire   +1 more source

Effect of Deformation Mechanisms on Magnetic Record in Marble Shear Zones

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Processes that form and deform any rock leave distinct imprints on its microstructure. The description and interpretation of these microstructural features aids in understanding rock's evolution. The anisotropy of magnetic susceptibility is widely regarded as a method for characterizing rock microstructures.
Zuzana Roxerová   +6 more
wiley   +1 more source

Lithotectonic units of the Cabeço de Vide Massif (Ossa-Morena Zone, SW Iberian Massif): a bedrock map to decipher superimposed orogenies

open access: yesJournal of Maps
This study provides a new cartographic framework for a geologically complex region in the SW Iberian Massif (central-east Portugal). We have redefined lithological ensembles and clarified structural relationships between rock types (unconformities and ...
Diana Moreno-Martín   +5 more
doaj   +1 more source

Cadomian to Cenerian accretionary orogenic processes in the Alpine basement: the detrital zircon archive

open access: yes, 2023
New whole-rock geochemical and detrital zircon U–Pb and Lu–Hf data of metasedimentary sequences of the Silvretta Nappe, Orobic Alps, Strona-Ceneri Zone, Gotthard Massif and Venediger Nappe are presented. These units seem to share a common early to middle
Hueck, Mathias   +13 more
core   +1 more source

Unveiling Cenozoic Volcanism in the Takab‐Shahindezh Area Induced by Slab‐Mantle Interaction in the Zagros Orogen, NW Iran

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract The Zagros orogen records the closure of the Neotethys Ocean by northward subduction of the oceanic slab beneath the Iranian plate. Northwestern Iran has undergone episodic volcanism since the Eocene, due to a shift of tectonic regimes from subduction to collision and post‐collisional extension, although the dynamics responsible for such ...
Farzaneh Shakerardakani   +5 more
wiley   +1 more source

Coupling Phase Equilibrium Modelling and Apatite‐in‐Garnet Elastic Barometry to Unravel the P–T Path of the Micaschist Unit From the Zicavo Metamorphic Complex (Corsica, France)

open access: yesJournal of Metamorphic Geology, Volume 43, Issue 7, Page 681-705, September 2025.
ABSTRACT To gain insights into the pressure–temperature evolution of a scarcely studied portion of the Variscan basement of Corsica in southern Europe, we combined phase equilibrium modelling, Zr‐in‐rutile thermometry and apatite‐in‐garnet elastic barometry. We investigated Grt‐St micaschist rocks containing garnet grains of several millimetres in size
Lorenzo Dulcetta   +6 more
wiley   +1 more source

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