Recently added articles from Journal of the Czech Geological Society:
Launching the Journal of Geosciences
Jan 01, 2007; ... Welcome to the first issue of the Journal of Geosciences, a geological journal with a brand new layout but a long history. As early as in 1956 was founded Casopis pro mineralogii a geologa, which was mostly dedicated to the contributions from former Czechoslovakia as well as the news from the ...
Celebration of the career contribution of Stanislav Vrána
Jan 01, 2007; ... The first issue of the Journal of Geosciences (formerly Journal of the Czech Geological Society) is dedicated to RNDr. Stanislav Vrána, CSc, a long time editor of this journal, on the occasion of his 70th birthday on 7 May, 2006. Stanislav Vrána is the outstanding scientist on the field of ...
Resolving the Variscan evolution of the Moldanubian sector of the Bohemian Massif: the significance of the Bavarian and the Moravo-Moldanubian tectonometamorphic phases
Jan 01, 2007; ... The Variscan evolution of the Moldanubian sector in the Bohemian Massif consists of at least two distinct tectonometamorphic phases: the Moravo-Moldanubian Phase (345-330 Ma) and the Bavarian Phase (330-315 Ma). The Moravo-Moldanubian Phase involved the overthrusting of the Moldanubian over the ...
Late Variscan stress-field rotation initiating escape tectonics in the south-western Bohemian Massif: a far field response to late-orogenic extension
Jan 01, 2007; ... The late Variscan tectonic evolution of the Mühlzone, located at the south-western margin of the Bohemian Massif, is characterized by subhorizontal magmatic shearing under low-differential stress conditions in intrusive and in situ granites of the South Bohemian Batholith. The magmatic shearing ...
High-pressure granulites of the Bohemian Massif: recent advances and open questions
Jan 01, 2007; ... This paper presents a summary of recent knowledge on the high-pressure (HP) granulites of the Bohemian Massif, focusing mainly on the felsic ones with the peak mineral assemblage garnet-kyanite-ternary feldspar-quartz. There are several lines of evidence for the HP character of these rocks, such ...
Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited
Jan 01, 2007; ... In the Blanský les granulite Massif (Moldanubian Unit, South Bohemia), built mainly by felsic calc-alkaline HP-HT garnet ± kyanite granulite, occur rare small bodies of hyperpotassic granulite with garnet (Plesovice type) or pyroxene (Lhotka type). The Plesovice type is dominated by ...
Zircon fission-track dating of granites from the Vepor-Gemer Belt (Western Carpathians): constraints for the Early Alpine exhumation history
Jan 01, 2007; ... We present new zircon fission-track (ZFT) data from Variscan granitoid bodies in the Veporic (footwall unit) and Gemeric (hangingwall unit) thick-skinned nappe sheets of the Central Western Carpathians. All samples show Late Cretaceous to earliest Paleogene cooling ZFT ages, which contribute to ...
Origin and metamorphic evolution of magnesite-talc and adjacent rocks near Gemerská Poloma, Slovak Republic
Jan 01, 2007; ... Magnesite and talc deposit Gemerská Poloma is located in Early Palaeozoic rocks of the Gemericum, Slovakia. It experienced both Variscan and Alpine greenschist-facies regional metamorphism and was overprinted by contact metamorphism connected with the intrusion of a Permian granite. As the ...
Subsolidus behavior of niobian rutile from the Písek region, Czech Republic: a model for exsolution in W- and Fe^sup 2+^>>Fe^sup 3+^-rich phases
Jan 01, 2007; ... Niobian rutile with substantial W content is associated with black tourmaline, beryl, zircon, xenotime-(Y), monazite-(Ce), "písekite", and possibly pseudorutile or pseudobrookite in two oogenetic, beryl-columbite-subtype, granitic pegmatites at Písek and Údraz, southern Bohemia, Czech Republic ....
Mn^sup 3+^-rich andalusite to kanonaite and their breakdown products from metamanganolite at Kojetice near Trebíc, the Moldanubian Zone, Czech Republic
Jan 01, 2007; ... A zoned Mn^sup 3+^-rich andalusite to kanonaite occurs as shortly prismatic, black-green crystals, up to 2 mm in size, randomly distributed in quartz matrix of quartzitic rock with metamanganolite portions from Kojetice near Trebic. Minor spessartine, braunite, K-feldspar, albite, hyalophane, ...
Pegmatitic Nb-Ta oxide minerals in alluvial placers from Limbach, Bratislava Massif, Western Carpathians, Slovakia: compositional variations and evolutionary trend
Jan 01, 2007; ... Niobium-tantalum mineral assemblage of granitic pegmatite origin was found in alluvial placers near Limbach, the Bratislava granitic massif, Malé Karpaty Mountains, Central Western Carpathians, southwest Slovakia. The most widespread mineral is ferrocolumbite to ferrotantalite, rarely ...
New data on mineralogy of the Vysoký Kámen deposits near Krásno, Slavkovský les area, Czech Republic/Nové poznatky o mineralogii lozisek Vysoký Kámen u Krásna (Slavkovský les, Ceská republika)
Jan 01, 2006; ... Detailed mineralogical study focused on two deposits located on slopes of the Vysoký Kámen hill near Krásno in the proximity of the town of Horní Slavkov in Czech Republic. The open pit exploiting industrial feldspar material (mainly feldspathites and aplitic granites) offerred new finds of ...
The Krásno Sn-W ore district near Horní Slavkov: mining history, geological and mineralogical characteristics/Sn-W rudní revír Krásno u Horního Slavkova - historie tezby, geologická a mineralogická charakteristika
Jan 01, 2006; ... The tin-tungsten Krásno ore district near Horní Slavkov (Slavkovský les area, western Bohemia) belongs to the most important areas of ancient mining in the Czech Republic. The exceptionally rich and variable mineral associations, and the high number of mineral species, make this area one of the ...
Supergene minerals at the Huber stock and Schnöd stock deposits, Krásno ore district, the Slavkovský les area, Czech Republic/Supergení minerály lozisek Huberova a Schnödova pne, rudní revír Krásno, Slavkovský les, Ceská republika
Jan 01, 2006; ... This paper presents results of study of supergene minerals occuring at the Huber stock and Schnöd stock in the Krásno Sn-W ore district near Horní Slavkov (Slavkovský les area, Czech Republic). The mineralogical research is based on X-ray powder diffraction, electron microprobe analyses, optical ...
Mineralogy of phosphate accumulations in the Huber stock, Krásno ore district, Slavkovský les area, Czech Republic/Mineralogie akumulací fosfátu oblasti Huberova pne, rudní revír Krásno, Slavkovský les, Ceská republika
Jan 01, 2006; ... The present detailed research is focused on minerals of phosphate accumulations collected in the Huber open pit and at the 5th level of the Huber shaft, Krásno ore district, Slavkovský les area, Czech Republic. The following minerals have been identified at the studied localities: benyacarite, ...
Supergene minerals in the Horní Slavkov uranium ore district, Czech Republic/Supergenní minerály uranového rudního revíru Horní Slavkov, Ceská republika
Jan 01, 2006; ... This paper presents the existing and newly obtained information on supergene minerals of the Horní Slavkov uranium ore district. Mineralogical studies confirmed occurrences of the following minerals: anglesite, annabergite, arsenolite, autunite, carnotite, compreignacite. cuprosklodowskite, ...
New naturally occurring mineral phases from the Krásno - Horní Slavkov area, western Bohemia, Czech Republic/Nové minerální fáze z oblasti Krásno - Horní Slavkov, západní Cechy, Ceská republika
Jan 01, 2006; ... This paper presents description of eleven phases - probably new mineral species - from Krásno - Horní Slavkov, western Bohemia, Czech Republic. The phases characterized are mainly supergene phosphates. All up-to-now available physical and chemical data for individual phases and references to ...
The nature and genesis of greisen stocks at Krásno, Slavkovský les area - western Bohemia, Czech Republic
Jan 01, 2006; ... Apical parts of a Li-F granite intrusion, preserved under gneiss cover at the southern margin of the Krudum Massif in the Slavkovský les area, contain greisen stocks locally bearing low-grade Sn-W mineralization. Greisen varieties pass downwards into leucocratic granite and feldspathite zones ....
Late-orogenic Variscan magmatism: the case of quartz monzodiorite dykes from the Blanice Graben, southern Bohemia
Jan 01, 2006; ... Pyroxene-biotite quartz monzodiorite of the Stepánovice dyke (3 km long and up to 50 m wide), together with additional small occurrences further north, is associated with the Late Variscan Blanice Graben in the Moldanubian Zone of southern Bohemia. The texture is subophitic, fine- to ...
Two-mica and biotite granites in the Weitra-Nové Hrady area, Austria - Czech Republic
Jan 01, 2006; ... The South Bohemian Pluton consists, in traditional view, of three major granite suites - the Weinsberg, Eisgarn, and Freistadt suites. In reality, the composition of the pluton is even more complicated than this subdivision would suggest. For instance, in the area among towns of Weitra, ...