Results 61 to 70 of about 273 (174)
Geological investigations of the Lizard District, Cornwall, England: 1818–1883 [PDF]
History of Geo- and Space SciencesA lower Paleozoic slab of oceanic lithosphere was obducted onto the southern margin of Avalonia during the Variscan orogeny and is now exposed throughout the Lizard District of Cornwall, England.
C. N. Drummond
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Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)
Terra Nova, Volume 38, Issue 2, Page 116-123, April 2026.ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat +2 more
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Geology and tectonic setting of the Fornovolasco area, Alpi Apuane (Tuscany, Italy)
Journal of Maps, 2018 The study area is located in the Alpi Apuane (Tuscany, Italy), and extends between N 44°0′49.883″–E 10°20′23.467″ (SW corner) and N 44°2′53.403″–E 10°23′19.175″ (NE corner).
Diego Pieruccioni +3 more
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Dating C/S Structures in Syntectonic Granites by In Situ Rb‐Sr Analyses on Muscovite
Terra Nova, Volume 38, Issue 2, Page 124-129, April 2026.ABSTRACT The interplay of crystallisation, deformation and fluid–rock interactions makes deciphering geochronological information complex in syntectonic granites. In this study, we apply in situ Rb‐Sr analyses to selected samples from the Questembert Variscan syntectonic granite in Western France, which was emplaced along the South Armorican Shear Zone
Philippe Boulvais, Romain Tartèse
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GeofluidsFluid inclusions in mineralized fracture infillings (i.e., veins) could preserve information about subsurface fluids like temperature and salinity.
Akbar Aydin Oglu Huseynov +5 more
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract Petrological and seismic constraints suggest differential sampling depth for ultrahigh pressure (UHP) metamorphic rocks exposed in different segments of the fossil subduction zone of the Western Alps. However, the mechanisms for the observed differential exhumation remain to be understood. Here, we account for the continental margin subduction
Xinxin Wang +4 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.Abstract Characteristic remanent magnetizations isolated from the late Variscan Altenberg–Teplice Caldera exhibit paleomagnetic directions, ranging from those consistent with the expected primary Late Carboniferous geomagnetic field to intermediate directions that significantly diverge from the dipole states.
P. Vitouš +3 more
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Comment on "Ultrapotassic magmatism in the heyday of the Variscan Orogeny: the story of the Třebíč Pluton, the largest durbachitic body in the Bohemian Massif" by Janoušek et al. [PDF]
Int J Earth Sci, 2021 Schaltegger U +3 more
europepmc +1 more source
Geologica Acta, 2018 The pre-Variscan rocks of the Pyrenees exhibit a polyphase deformation linked to the Variscan crustal shortening and a low-pressure–high-temperature metamorphism. However, there is scarce chronostratigraphic evidence of this Variscan deformation. In the
C. MARTÍN-CLOSAS, S. TRIAS, J.M. CASAS
doaj
Geochemistry, Geophysics, GeosystemsThe 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
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