Results 91 to 100 of about 4,105 (193)

Geochronology of late Variscan magmatism of Sardinia: a review

open access: yes, 2017
Sardinia represents a southern transect of the Variscan Belt and is classically divided from SW to NE into a fold and thrust belt Foreland, Nappe zone and Axial zone. This latter high-grade domain is separated from the Nappe zone by the so-called Posada-Asinara Line.
Conte, A. M.   +5 more
openaire   +1 more source

Genesis and emplacement of felsic Variscan plutons within a deep crustal lineation, the Penacova-Regua-Verin fault: An integrated geophysics and geochemical study (NW Iberian Peninsula) [PDF]

open access: yes, 2009
Multidisciplinary studies integrating, U-Pb geochronology, whole-rock geochemical data, isotope geochemistry, anisotropy of magnetic susceptibility (AMS) studies and gravimetry were carried out on the Vila Pouca de Aguiar and the Aguas Frias-Chaves ...
Martins, HCB, Noronha, F, Sant'Ovaia, H
core   +1 more source

Geochemistry and Petrogenesis of Permo–Triassic Silicic Volcanic Rocks from the Circum-Rhodope Belt in the Vardar/Axios Zone, Northern Greece: An Example of a Post-Collision Extensional Tectonic Setting in the Tethyan Realm

open access: yesGeosciences
The western side of the Vertiskos Unit crystalline basement in northern Greece is fringed by a Permo–Triassic low-grade metamorphic volcano-sedimentary complex that belongs to the Circum-Rhodope Belt (CRB), which is an important part of the Vardar/ Axios
Argyro Asvesta
doaj   +1 more source

Electron microprobe monazite geochronology of granitic intrusions from the Montes de Toledo batholith (central Spain) [PDF]

open access: yes, 2012
U–Th–Pb monazite dating by electron microprobe has been applied to three peraluminous granitic intrusions of the western Montes de Toledo batholith (MTB).
Cuesta, Andrés   +4 more
core   +1 more source

Indium mineralisation in SW England: Host parageneses and mineralogical relations [PDF]

open access: yes, 2016
This is the author accepted manuscript and is available from Elsevier via http://dx.doi.org/http://dx.doi.org/. When the final article is assigned to volumes/issues of the publication, the Article in Press version will be removed replaced by the final ...
Andersen, J   +3 more
core   +1 more source

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

open access: yesGeologica 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   +2 more
doaj  

Permian 40Ar/39Ar ages for post-Variscan minor intrusions in the Iberian Range and Spanish Central System [PDF]

open access: yes, 2008
40Ar/39Ar dating of biotite from a calc-alkaline gabbro stock NW of Loscos in the Iberian Range yielded a slightly disturbed gas release spectrum. It has an early Permian, 288.5 ± 1.4 Ma total gas age, interpreted as the minimum emplacement age. The 40Ar/
Jan Timmerman, Martin   +2 more
core   +2 more sources

U-Pb zircon dating of the Gruf Complex: disclosing the late Variscan granulitic lower crust of Europe stranded in the Central Alps [PDF]

open access: yes, 2018
Permian granulites associated with noritic intrusions and websterites are a common feature of the post-Variscan European crust. Such granulites are common in the Southern Alps (e.g. Ivrea Zone), but occur only in the Gruf Complex in the Central Alps.
Burg, J.-P   +6 more
core  

A reactive assimilation model for regional-scale cordierite-bearing granitoids: geochemical evidence from the Late Variscan granites of the Central Iberian Zone, Spain [PDF]

open access: yes, 2008
Regional scale biotite and cordierite-bearing granites (s.l.) in the Variscan of the Central Iberian Zone (CIZ) are spatially closely associated with cordierite-rich nebulites and cordierite-bearing two-mica granites, and with cordierite-rich high grade ...
Carnicero, A.   +3 more
core   +1 more source

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