Results 91 to 100 of about 823 (158)

Deformed Granites in the Southern Schwarzwald as Indicators of Local Variscan Shear Zones

, 2010
Deformierte variskische Granite und ihre älteren Nebengesteine wurden in drei Arbeitsgebieten im Südschwarzwald (Schlächtenhaus, Säckingen - Wehr, Hauenstein) gefügeanalytisch untersucht, um Art und Umfang variskischer regionaler und lokaler ...
Hincke, Evelyn
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New Permo-Carboniferous geochemical data from central Thailand: implication for a volcanic arc model [PDF]

, 1991
Current ideas and models of geotectonic reconstructions of Southeast Asia are reviewed and new data on Late Carboniferous through Middle Permian tuffites and sills from central Thailand are presented in the light of the problems of Southeast Asian ...
Altermann, Wladyslaw
core   +1 more source

The granulitic residue of the Variscan granites of central Iberia: challenges to restite unmixing and peritectic entrainment models

, 2018
Trabajo presentado en la European Geosciences Union General Assembly, celebrada en Viena (Austria), del 8 al 13 de abril de 2018The origin of granitic magmas in a crustal recycling context implies that deep-seated residual granulites and shallower ...
Villaseca, Carlos, Orejana, D.
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Assessment of Chaves Low-Temperature CO2-Rich Geothermal System (N-Portugal) Using an Interdisciplinary Geosciences Approach

Geofluids, 2019
This paper reviews the results of a multi- and interdisciplinary approach, including geological, geomorphological, tectonic, geochemical, isotopic, and geophysical studies, on the assessment of a Chaves low-temperature (77°C) CO2-rich geothermal system ...
J. M. Marques, P. M. Carreira, L. A. Aires-Barros, F. A. Monteiro Santos, M. Antunes da Silva, P. Represas   +5 more
doaj   +1 more source

The composition of zircon in Variscan granites from Northern Portugal

, 2014
Se han seleccionado tres plutones graniticos variscos en el norte de Portugal para el estudio de la composición del circón. Los plutones son: Vila Pouca de Aguiar y Lavadores-Madalena con afinidad de tipo-I y el plutón de Vieira do Minho de tipo transicional I-S.
Martins, H. C.B., Abreu, J.
openaire   +1 more source

Chemical composition of zircons from the Cornubian Batholith of SW England and comparison with zircons from other European Variscan rare-metal granites

, 2016
Zircon from 14 representative granite samples of the late-Variscan Cornubian Batholith in SW England was analyzed for W, P, As, Nb, Ta, Si, Ti, Zr, Hf, Th, U, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb, Al, Sc, Bi, Mn, Fe, Ca, Pb, Cu, S, and F using EPMA ...
RK Shail (21814886), B Simons (21840800), K Breiter (21840797), A Müller (557669)   +3 more
core   +2 more sources

Machine learning assisted enhancement of petrophysical property dataset of fractured Variscan granites of the Cornubian Batholith, SW UK

Artificial Intelligence in Geosciences
Outcrop analogue studies play an important role in advancing our comprehension of reservoir architectures, offering insights into hidden reservoir rocks prior to drilling, in a cost-effective manner.
A. Turan, E. Artun, I. Sass
doaj   +1 more source

Late Variscan, Permo-Carboniferous, Al-K plutonism in the South Portuguese Zone: El Crispinejo cordierite-bearing granite.

Geologica Acta, 2017
The El Crispinejo granite forms part of a small, but distinctive late intrusive suite of cordierite-bearing peraluminous granites in the South Portuguese Zone (SPZ). This granite has the best outcrop relationships of the suite.
A. DÍEZ MONTES, PABLO VALVERDE-VAQUERO, C. REY-MORAL, T. SÁNCHEZ-GARCÍA   +3 more
doaj  

Geological and Geochemical Characterization of Variscan Pegmatites in the Sidi Bou Othmane District, Central Jebilet Province, Morocco

Geosciences
The Sidi Bou Othmane (SBO) pegmatite district is situated in the Central Jebilet massif, Western Meseta domain, Morocco. The SBO district is hosted essentially in a volcano-sedimentary series composed of Late-Devonian Sarhlef shales.
Amina Wafik, Nouamane El Aouad, Youssef Daafi, Yousra Morsli, Marouane Chniouar, Rosalda Punturo, Aida Maria Conte, Daniela Guglietta, Wissale Aba Sidi   +8 more
doaj   +1 more source

Oxidized and reduced Portuguese Variscan granites associated with W and Sn hydrothermal lode deposits: Magnetic susceptibility results [Granitos Variscos Portugueses oxidados e reduzidos e sua associação com mineralizações hidrotermais de W e Sn: Resultados de suscetibilidade magnética] [PDF]

, 2013
The central-northern region of Portugal mainland comprises an important W-Sn metallogenic province composed of various W, W-Sn, W-Mo and Sn hydrothermal lode deposits spatially related to Variscan granites. These granites are usually categorised into two
Martins, H, Noronha, F, Sant'Ovaia, H
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