Results 11 to 20 of about 823 (158)
Repeated granitic magmatism during Variscan collapse
Goldschmidt2023 abstracts, 2023 International audiencePartial melting in the continental crust is widespread in the late stages of orogenic evolution, particularly during gravitational collapse stages.
Cogné, Nathan +3 more
core +4 more sources
Geologica Acta, 2017 Magnetic susceptibility (MS) has been measured in Variscan granites from central Spain. They yield values in the order of 15 to 180μSI units for S- and I-type granites, indicating that both types belong to the ilmenite series.
C. VILLASECA +2 more
doaj +9 more sources
Late-Variscan fayalite-bearing granites in Sardinia: The lower crust connection
, 2013 "The Variscan [340 – 260 Ma, 1] Corsica-Sardinia. Batholith (C-SB) emplaced discordantly across the orogenic. structure, from the roots zone to the Gondwana foreland.. Despite the scarcity ( 900°C), low fH2O and fO2. conditions [5]..
Puccini A +4 more
core +3 more sources
Origin and timing of the post-Variscan gabbro-granite complex of Porto (Western Corsica)
Contributions to Mineralogy and Petrology, 2007 The post-Variscan complex of Porto consists of metaluminous to slightly peraluminous A-type biotite granites mingled with gabbro-dioritic rocks, and late dykes with basaltic to trachyandesitic composition.
TRIBUZIO, RICCARDO +5 more
core +6 more sources
Late to post-Variscan basement segmentation and differential exhumation along the SW Bohemian Massif, central Europe [PDF]
Solid Earth, 2021 The exposed Variscan basement in central Europe is well-known for its complex structural and lithological architecture resulting from multiple deformation phases.
A. Eberts +6 more
doaj +1 more source
Geogaceta, 2023 The Cadafresnas granites and granitoid breccias (Peña do Seo, W of León) are small post-tectonic stocks of Variscan age related to W-Sn mineralizations.
Pablo Caldevilla Domínguez +4 more
doaj +1 more source
Fragmenta entomologica, 2022 We used presence/absence data of 5,160 red wood ant nests (RWA; Formica polyctena) acquired in a systematic large-scale area-wide survey in two study areas (≈350 ha) in the Oberpfalz, NE Bavaria, Germany to explore for the first time the influence of ...
Gabriele M. Berberich +2 more
doaj +1 more source
Geophysical Monograph Series, Page 169-190., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi +9 more
wiley +1 more source
Geosciences, 2022 The existence of pieces of the Variscan belt in the Alpine basement has been acknowledged for a long time but the correlation of these massifs to the litho-tectonic domains established in Western Europa outside the Alpine chain is still disputed.
Michel Faure, Jacky Ferrière
doaj +1 more source
The Reversely Zoned Castelo Branco Pluton at the New “Barrocal” City Park (Central Iberian Zone, Portugal) [PDF]
Geoconservation Research, 2020 The "Barrocal" city Park of Castelo Branco is an urban park developed to protect the geoheritage of the tardi-Variscan granite landscapes of the only city existing in the area of the Naturtejo UNESCO Global Geopark.
Isabel Margarida Antunes +2 more
doaj +1 more source