... position of assumed relict Precambrian basement preserved in the Variscan collisional orogen of the West Sudetes, SW Poland. Hitherto, the Młynowiec Formation and the Stronie Formation within the Orlica–Śnieżnik Dome were assumed to represent two metavolcano-sedimentary successions of Proterozoic and early...

... a significant metamorphic and tectonic discontinuity (see Fig. 5a ). Our study constrains the relationships of the structures and metamorphism in this area, with special attention on the P–T reconstructions of the Śnieżnik orthogneisses, paragneisses in the Młynowiec Formation and amphibolites in the Stronie...

... of eclogite and mid-crustal rocks in the Orlica-Śnieżnik Dome, Bohemian Massif : Journal of Metamorphic Geology , v. 30 , p. 213 – 234 , doi:10.1111/j.1525-1314.2011.00964.x. Tropper P. Konzett J. Finger F. , 2005 , Experimental constraints on the formation of high-P/high T granulites...

...-Śnieżnik complex, Bohemian Massif. Under favourable circumstances such data may help to unravel protolith ages and yet-undetermined aspects of the metamorphic evolution, for example, the time span over which eclogite-facies conditions were attained. By means of ion-probe and laser ablation techniques...

... of the Orlica–Śnieżnik Dome and is composed of mica schists of the ‘Hranična Formation’ and is interlayered with felsic metavolcanic rocks, graphitic quartzites, marbles and amphibolites (Skácel, 1989 ; Don, Skácel & Gotowała, 2003 ). * Email: [email protected]...

...-Śnieżnik dome (Jastrzębski et al. 2010 ; Mazur et al. 2012 ; Mazur et al. 2015 ), the Zwethau and the Rothstein formations in the Saxohuringian zone (e.g. Elicki, 1997 ; Linnemann, 2007 ) or from glaciomarine sedimentary rocks documented in the Elbe zone and the North Saxon antiform...

...~ Terrane Com ple ~ 50°30 16 ° I Snieznik . . . . . . Fig. 1. Inset (A) shows some major boundaries and lineaments in N, W and Central Europe. Stars, Baltic faunas; filled circles, Gondwana faunas, both of Cambrian-Arenig a e (references given in the text ). (B) A terrane map of the W Sudetes (area shown...

...-Or; A) and anorthite-albite-orthoclase (An-Ab-Or; B) diagrams showing normative composition of melt inclusions (MI) from this study (localities 1 and 2) and average compositions of MI in peritectic garnets of metagranitoids from Orlica-Śnieżnik Dome, Bohemian Massif, central Europe ( Ferrero et al., 2018b ) (3...

.... A geochemical investigation of the age, significance and structural evolution of the Caledonian-Variscan granite-gneisses of the Snieznik metamorphic area, Central Sudetes Geologia Sudetica 1990 25 1 27 Brueckner H. K. Medaris L. G. Bakun-Czubarow N. Nd and Sr age and isotope patterns...

...), producing orthopyroxene/clinopyroxene+plagioclase symplectites replacing omphacite; (3) amphibolite stage (730–830 °C / 0.8–1.1 GPa), which led to the formation of amphibole–plagioclase kelyphites between garnet and symplectite, and to the growth of cummingtonite on orthopyroxene; (4) greenschist to sub...

..., the absence of an oceanic signature within the eclogite appears to be in conflict with models of a major Palaeozoic oceanic suture between Brunovistulia and the rest of the Bohemian Massif. The VVD forms a NE/SW-oriented elliptical dome buttressed between the Orlica-Śnieżnik Dome and Staré Město Belt...

...–east convergence led to the formation of the NNE–SSW-trending structures that dominate the southern Bohemian Massif. These structures were overprinted by an important north–south-shortening event that shaped the WNW–ESE-oriented features. The latter run parallel to the Baltica margin and dominate...

... ?) into more depleted basalts resembling enriched MORB, with Nd-isotopic characteristics indicating contamination by continental crust. 2. Interlayered rhyodacitic lavas and volcaniclastics which show negative ɛ Nd values, suggesting formation of the original magma by crustal melting. 3. An overlying alkaline...

... of all the metabasite groups and their geological setting is consistent with emplacement either through continental crust undergoing extension at a passive continental margin, or during the formation of an intracratonic basin before subsequent metamorphism recorded a local compressional event. 9 1...

... Devonian and Carboniferous formations delineate the arc. In the second volume of his monumental work The Face of the Earth , Suess (1888 , 1923–1928 ) wondered whether the Iberian basement, in particular the Asturian terranes, were a continuation of the Armorican Arc (consisting of southern Ireland...

... assemblages in the inclusions and microstructures classify them as former droplets of melt trapped during garnet formation at the metamorphic peak ~1050 °C and ≥1 GPa ( Axler and Ague 2015 ). The host rock has attracted considerable interest in recent years because of its very high T of re-equilibration...

.... Dmisteinbergite formation likely results from a similar process, and thus it should be regarded as a kinetically controlled phase. Moreover, the investigation of dmisteinbergite as well as of other metastable feldspar polymorphs offers new insights into the behavior of natural materials under non-equilibrium...