A5041445438- Geological and Geochemical Analysis
- Geological Formations and Processes Exploration
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Geological Studies and Exploration
- Paleontology and Stratigraphy of Fossils
- Ancient and Medieval Archaeology Studies
- Hydrocarbon exploration and reservoir analysis
- Mineralogy and Gemology Studies
- earthquake and tectonic studies
- Geological Modeling and Analysis
- Geological and Geophysical Studies
- Geomagnetism and Paleomagnetism Studies
- Geology and Environmental Impact Studies
- Geochemistry and Elemental Analysis
- Mining and Gasification Technologies
- Geological formations and processes
- Clay minerals and soil interactions
- Methane Hydrates and Related Phenomena
- Geotourism and Geoheritage Conservation
- Engine and Fuel Emissions
- Electron and X-Ray Spectroscopy Techniques
- Laser and Thermal Forming Techniques
- Historical and Archaeological Studies
- Arctic and Russian Policy Studies
Czech Geological Survey
2015-2024
University of Salzburg
1998-2000
Abstract Neoproterozoic to early Paleozoic accretionary processes of the Central Asian Orogenic Belt have been evaluated so far mainly using geology ophiolites and/or magmatic arcs. Thus, knowledge nature and evolution associated sedimentary prisms remains fragmentary. We carried out an integrated geological, geochemical, zircon U‐Pb geochronological study on a giant Ordovician metasedimentary succession Mongolian Altai Mountains. This is characterized by dominant terrigenous components...
Abstract An outline is presented of the present state research on Precambrian evolution history Brunovistulian, a large (30 000 km 2 ), mainly sediment covered Peri-Gondwana basement block at eastern end Central European Variscides. On basis recent chemical, isotopic and geochronological data it argued that half Brunovistulian (Slavkov Terrane) originated in an island-arc environment, documenting rare case Neoproterozoic crustal growth central Europe. The western Thaya Terrane, includes more...
Abstract Seven granitoid gneisses from the contact zone between eastern margin of Variscan belt and Brunian microcontinent in SW Poland have been dated by ion-microprobe 207 Pb/ 206 Pb single zircon evaporation methods. The zircons define two age groups for gneiss protoliths: (1) late Neoproterozoic c. 576–560 Ma (2) early Palaeozoic 488–503 granites. belonging to basement contain abundant Mesoproterozoic latest Palaeoproterozoic inherited material range 1200–1750 Ma. crustal domain lack...
ABSTRACT The Chandman massif, a typical structure of the Mongolian Altai, consists migmatite–magmatite core rimmed by lower grade metamorphic envelope andalusite and cordierite‐bearing schists. oldest in is subhorizontal migmatitic foliation S1 parallel to rare granitoid sills. This fabric folded upright folds F2 transposed into vertical S2 that syn‐tectonic, with up several tens metres thick Sillimanite–ilmenite–magnetite inclusion trails garnet constrain depth equilibration during 6–7 kbar...
Abstract The Central Asian Orogenic Belt (CAOB) in southern Mongolia consists of E‐W trending Neoproterozoic cratons and Silurian‐Devonian oceanic tectonic zones. Previous study revealed that the Early Paleozoic accretionary wedge zone are underlain by a layer giving homogeneous gravity signal. Forward modelling suggests this is not formed high‐density material typical lower crust but composed low‐ to intermediate‐density rocks resembling continental crust. nature constrained whole‐rock...
Three crystalline complexes were newly described in the area of junction between Mongolian Altay and Gobi surroundings Chandman Sum, SW Mongolia.Khan Khayrkhan, Khayrkhan Unegt Uul distinguished on basis their geological position, distinct petrography, metamorphic style contrasting geochronological data.These units are situated along northern margin Gobi-Altay Terrane at first sight seem to have a very simple uniform history.However, detailed studies reveal more complex varied evolution.The...
Sagsai Pluton intruded the low-grade metavolcanosedimentary complex of Cambrian Tugrug Fm. in river valley SW Tsogt soum, Gobi-Altai aimag (SE Mongolian Altai).This oval body (~9 × 12 km) is composed mainly amphibole monzogabbros to quartz diorites, biotite amphibole-biotite syenites monzonites.It by anatectic two-mica granites along W rim. The abundant mafic microgranular enclaves enclosed monzonites are interpreted as an evidence vigorous magma mingling and mixing.The newly obtained LA...
ABSTRACT The geological map L-47-V at a scale 1:500,000 covers part of Mongolian Altaids with ophiolite fragments in southern Central Asian Orogenic Belt SW Mongolia. This region has basin and range topography Neoproterozoic Palaeozoic units exposed NW–SE trending ranges rising along major intracontinental faults intermontane basins filled by Mesozoic Cenozoic sediments between. shows clear N–S tectonic zonation featuring the northerly Precambrian Baidrag microcontinent, lower Lake Zone...
In this paper are reviewed structural, petrological and geochronological data from the main units at NE periphery of Moldanubian Zone, i.e.Kutná Hora Complex, Svratka Unit, Polička Zábřeh units, as well Strážek Unit Zone.In domain Bohemian Massif, lower-and upper-crustal dominated by metamorphic fabrics produced during Variscan orogeny.The mid-to Svratka, affected ~MP/MT "long-lived" (~350-339 Ma) tectonometamorphic event reflecting ~WNW-ESE right-lateral strike-slip shearing...
Abstract In the Altai Accretionary Wedge, several periods of Barrovian‐ and Buchan‐type metamorphic cycles were dated from Ordovician to Permian. However, timing link between these are not clear, their causes debated. order contribute understanding evolution accretionary wedges, we studied an area composed three parallel belts in easternmost extremity Hovd domain located Mongolian Zone: garnet gneiss north, garnet–staurolite–kyanite schist overprinted by...
The Cretaceous continental sedimentation in SW Mongolia was commonly accompanied by volcanic activity.Bimodal association of the Khulsan Gol Formation is represented mostly calc-alkaline and rare alkaline rocks (basaltic andesite, trachybasalt to trachyandesite lavas or tuffs with lahars).The were extruded mainly subaerially, although locally there a subaqueous component present corresponding final phases Mesozoic Gobi-Altay rift zone.Variations chemical isotopic composition reflect crustal...
A group of mud volcanoes was discovered in the NW part Gobi Altay on a northern foothill Khar Argalantyn Nuruu Mts.Several cones and mounds with elevation up to 0.8 m, as well pools muddy water outflows were encountered.Jurassic Quaternary sedimentary successions provide source for volcanoes.Jurassic sediments cover transgressively Permian volcanics forming several confined aquifers within subsided, triangle shaped block.The are saturated groundwater derived from Mts.To northwest east this...