Late Carboniferous paleoelevation of the Variscan Belt: a stable isotope paleoaltimetry study in the French Massif Centr...
International audience
The Eastern Tobífera Thrust: an important accommodation structure for the closure of the Rocas Verdes Basin, Patagonian ...
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International audience
Late Carboniferous paleoelevation of the Variscan Belt: astable isotope paleoaltimetry study in the French MassifCentral...
We present the first stable isotope paleoaltimetry estimates for the internal zones of theeroded Variscan Belt of Western Europe based on the hydrogen isotope ratios (δD) ofmuscovite from syntectonic leucogranites that have been emplaced at ~315 Ma. Wefocus on the Limousin region (Western Massif Central, France) where peraluminousgranites are spati...
Multidisciplinary characterization of fluid sources in ductileshear zones (Armorican Massif, Variscan belt, France)
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Ductile shear zones are sites of significant fluid circulation and hydrothermal alteration wheremetamorphic, magmatic and surface-derived fluids meet. Characterization of the meteoricsource of crustal fluids can be used to better understand ore deposition and mineralization atthe orogen scale or for stable isotope paleoaltimetry reconstructions. Mi...
Late Carboniferous paleoelevation of the Variscan Belt of Western Europe
We present the first stable isotope paleoaltimetry estimates for the hinterland of the eroded Variscan Belt of Western Europe based on the hydrogen isotope ratios of muscovite from syntectonic leucogranites that have been emplaced at ∼315 Ma. We focus on the Limousin region (Western Massif Central, France) where peraluminous granites are spatially ...
Latent Tectonics of the Central Russian Deformation Belt of the East European Platform
Published in Geotectonics
AbstractThe article considers the features of the tectonics of the Central Russian deformation belt located in the central part of the East European Platform. The belt is traced in a wide (up to 350 km) strip ENE for more than 1000 km. In studying this structure, remote and structural analysis methods were used. Based on the available data, analysi...
Sulfoarsenic Mineralization with Gold in the Shear Zone of the Eastern Transbaikalia Branch of the Mongol–Okhotsk Suture...
Published in Russian Journal of Pacific Geology
AbstractThe Pogromnoye Deposit related to gold–sulfide-quartz formation of the veinlet-disseminated ore type was formed in the shear zone that occurs between overthrusts in the block confined to the volcanogenic–sedimentary basin along the fragment of the Mongol–Okhotsk suture. The parageneses of zonal quartz–albite–micaceous (muscovite–sericite) m...
Metasomatically controlled sillimanite–corundum deposit: A case study from Sonapahar, Meghalaya, Northeast India
Published in Journal of Earth System Science
The Sonapahar sillimanite-corundum deposit of Meghalaya, Northeast India occurs within high-grade metapelites and exhibits an unusual association of sillimanite-quartz, corundum-quartz, sapphirine-phlogopite-corundum-sillimanite rock. Pockets of sillimanite and corundum occur within the host quartz sillimanite schist with contrasting chemical signa...
Anatomy and evolution of a migmatite-cored extensional metamorphic dome and interaction with syn-kinematic intrusions, t...
Post-orogenic extension in back-arc regions is classically associated with metamorphic core complexes (MCCs) cored with exhumed metamorphic rocks and granitic intrusions interacting with low-angle detachments. When additional heat is provided by the advected asthenosphere below the extending region, for instance above slab tears, high-temperature m...
Metamorphic evolution of the Great Slave Lake shear zone
The Paleoproterozoic Great Slave Lake shear zone (GSLsz) is a crustal-scale strike-slip structure, with a total length >1000 km and a width of ~25 km, that separates the Archean Rae and Slave cratons. The range of metamorphic rocks now exposed at the surface encompasses granulite facies mylonite through to lower-greenschist facies ultramylonite and...
