Results 81 to 90 of about 1,408 (212)

From Magma Formation to Eruption: Temperature Path of Two Late Carboniferous Post‐Collisional Calderas (Bohemian Massif)

open access: yesGeochemistry, Geophysics, Geosystems
The thermal evolution of magmatic systems of the Altenberg‐Teplice and Tharandter Wald calderas, which erupted during the terminal post‐collisional phase of the Variscan orogeny in the Bohemian Massif, was investigated. The zircon saturation temperatures
I. Olšanská   +7 more
doaj   +1 more source

Geochronology, geochemistry, and geological evolution of the Troiseck-Floning and Rosskogel nappes (Eastern Alps): unraveling parallels between the Eastern Alps and Western Carpathians

open access: yesSwiss Journal of Geosciences
The Troiseck-Floning and Rosskogel nappes are part of the Austroalpine Unit in the eastern part of the Eastern Alps. The nappes are in tectonic contact and comprise Permian to Mesozoic lower greenschist facies metamorphic metasediments, but only the ...
Martin K. Reiser   +4 more
doaj   +1 more source

Discovery of Variscan orogenic peridotites in the Pelvoux Massif (Western Alps, France)

open access: yes, 2023
Small bodies of mantle-derived peridotites and other ultramafic rocks are commonly found in exhumed lower crustal units of collisional orogens. They provide a direct record of the complex evolution of the upper mantle before and during an orogeny, and ...
Stéphane Guillot   +3 more
core   +1 more source

New U–Pb monazite and zircon data from the Sudetes Mountains in SW Poland: evidence for a single‐cycle Variscan orogeny

open access: yes, 2000
New U–Pb monazite and zircon data combined with a study of their internal morphologies significantly clarifies the controversy surrounding the Palaeozoic geodynamic evolution of the Sudetes Mountains in the northeastern Bohemian Massif.
R. R. PARRISH   +3 more
core   +1 more source

Deciphering orogeny: a metamorphic perspective. Examples from European Alpine and Variscan belts

open access: yesBulletin de la Société Géologique de France, 2014
AbstractIn this paper we review and discuss, in a synthetic historical way, the main results obtained on Alpine metamorphism in the western Alps. First, we describe the finite metamorphic architecture of the western Alps and discuss its relationships with subduction and collision processes.
openaire   +1 more source

A numerical model of exhumation of the orogenic lower crust in the Bohemian Massif during the Variscan orogeny

open access: yes, 2012
International audienceWe present a numerical model of the main phase (370-335 Ma) of the Variscan orogeny in the central part of the Bohemian Massif.
Schulmann, Karel   +3 more
core   +1 more source

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

open access: yesBSGF - 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   +6 more
doaj   +1 more source

An archosauromorph dominated ichnoassemblage in fluvial settings from the late Early Triassic of the Catalan Pyrenees (NE Iberian Peninsula).

open access: yesPLoS ONE, 2017
The vertebrate recovery after the end-Permian mass extinction can be approached through the ichnological record, which is much more abundant than body fossils.
Eudald Mujal   +4 more
doaj   +1 more source

Geochemical, O-H-Sr Isotopic, and Thermodynamic Insights into the Metasomatic and Metamorphic Evolution of the Saxothuringian Crust: The Case of the Kowadło Ultramafic Suite (SW Poland) [PDF]

open access: yesLithosphere
The Orlica-Śnieżnik Dome in the Bohemian Massif represents a key window into the tectonic and geochemical evolution of the Saxothuringian continental crust, exemplified by the stratified Kowadło ultramafic suite.
Mohamed M. Hamdy   +5 more
doaj   +1 more source

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