Results 31 to 40 of about 242 (121)

Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa

Terra Nova, Volume 38, Issue 2, Page 97-105, April 2026.
ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito, B. V. Ribeiro, F. Alkmim, A. Deramchi, C. L. Kirkland   +4 more
wiley   +1 more source

Evolution and Provenance of the Polish Rotliegend in the Southern Permian Basin

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract The Southern Permian Basin (SPB) has been extensively explored for ore deposits. However, a comprehensive evaluation of the remaining copper potential, specifically for sediment‐hosted stratiform copper system, remains lacking. This study applies goSPL, an open‐source landscape and stratigraphic evolution model, to reconstruct the Permian rift‐
Beatriz Hadler Boggiani, Claire Mallard, Tristan Salles, Nicholas Atwood   +3 more
wiley   +1 more source

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

Terra 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, Tomas Capaldi, Cornel Olariu, Andrei‐Gabriel Dragoș, Relu Dumitru Roban, Mihaela C. Melinte Dobrinescu   +5 more
wiley   +1 more source

About a peri-Gondwanan-North African enlarged acceptance of the Caledonian Orogeny

, 2011
The notion of “Caledonian Orogeny” is restricted by most authors to the Ordovician-Devonian thermotectonic events associated with the Laurentia-Baltica- Avalonia suturing.
Ioan Balintoni, Hann, Horst-Peter, Horst-Peter Hann, Constantin Balica, Balica, Constantin, Balintoni, Ioan   +5 more
core   +1 more source

Effect of Deformation Mechanisms on Magnetic Record in Marble Shear Zones

Geochemistry, 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, Vladimír Kusbach, Matěj Machek, Monika Kučeráková, Stanislav Vratislav, Anna Vávrová, Martin Chadima   +6 more
wiley   +1 more source

Late Cambrian magmatic arc activity in peri-Gondwana: geochemical evidence from the Basal Allochthonous Units of NW Iberia

Geologica Acta, 2017
The North African section of the Gondwana margin was the site of voluminous, arc-related magmatism during the Late Neoproterozoic (Avalonian–Cadomian orogen).
P. ANDONAEGUI, J. ABATI, R. DÍEZ FERNÁNDEZ   +2 more
doaj  

The Cadomian Orogeny and the opening of the Rheic Ocean: The diacrony of [PDF]

, 2008
Cadomian orogenic processes and their continuum to the opening of the Rheic Ocean were modeled by making use of new LA-ICP-MS U–Pb ages from detrital zircons of sedimentary rocks of Late Neoproterozoic (Ediacaran) and Cambro-Ordovician sediments of the ...
Linnemann, Ulf, Jeffries, Teresa, Drost, Kerstin, Gerdes, Axel, Pereira, M. Francisco   +4 more
core  

Cambrian Zawidów granodiorites in the Cadomian Lusatian Massif (Central European Variscides): what do the SHRIMP zircon ages mean ?

, 2014
International audienceThe Lusatian Massif in the Central European Variscides, composed of upper Neoproterozoic (c. 570 Ma) greywacke intruded by c. 540 Ma old Cambrian granodiorites (and the somewhat younger Zawidów granodiorites), constitutes a fragment
Białek, Dawid, Kryza, Ryszard, Oberc-Dziedzic, Teresa, Pin, Christian   +3 more
core   +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)

Journal 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, Xin Zhong, Gabriele Cruciani, Johannes Vrijmoed, Jan Pleuger, Marcello Franceschelli, Timm John   +6 more
wiley   +1 more source

Continental‐Hemispheric Scale Dust Events Driven by Last Glacial Alpine Ice Sheet Dynamics

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract Greenland ice cores demonstrate that transient last glacial cold climate events (stadials) were associated with greatly enhanced atmospheric dust loading. Detailed radiocarbon dating of loess in central Europe reveals concurrent increases in dust activity in dust‐emitting regions.
Yunus Baykal, Gábor Újvári, Thomas Stevens, Sergio Andò, Adriano Banak, Sanja Šuica, Marta Barbarano, Eduardo Garzanti   +7 more
wiley   +1 more source