A5040690544- Geological and Geochemical Analysis
- Geological Formations and Processes Exploration
- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Thallium and Germanium Studies
- Geochemistry and Geologic Mapping
- Geochemistry and Elemental Analysis
- High-pressure geophysics and materials
- Heavy metals in environment
- earthquake and tectonic studies
- Methane Hydrates and Related Phenomena
- Cryospheric studies and observations
- Tardigrade Biology and Ecology
- Diamond and Carbon-based Materials Research
- Geological formations and processes
- Winter Sports Injuries and Performance
- Orthopaedic implants and arthroplasty
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Mine drainage and remediation techniques
- Polar Research and Ecology
- Selenium in Biological Systems
- Analytical chemistry methods development
- Arsenic contamination and mitigation
- Biocrusts and Microbial Ecology
Charles University
2016-2025
Czech Academy of Sciences, Institute of Geology
2007-2023
Nuclear Research Institute Rez (Czechia)
2023
Czech Academy of Sciences, Nuclear Physics Institute
2023
Institute of Mineralogy
2020
Institute of Geochemistry
2020
Mineral Resources
2020
Czech Geological Survey
2009-2016
Czech Academy of Sciences
2014
Abstract This paper summarizes the current knowledge on nature, kinematics and timing of movement along major tectonic boundaries in Bohemian Massif demonstrates how Variscan plutonism deformation evolved space time. Four main episodes are recognized: (1) Late Devonian–early Carboniferous subduction continental underthrusting Saxothuringian Unit beneath Teplá–Barrandian resulted orogen-perpendicular shortening growth an inboard magmatic arc during c. 354–346 Ma; (2) subduction-driven was...
Here, for the first time, we report thallium (Tl) isotope record in moderately contaminated soils with contrasting land management (forest and meadow soils), which have been affected by emissions from coal-fired power plants. Our findings clearly demonstrate that Tl of anthropogenic (high-temperature) origin light composition was deposited onto studied soils, where heavier (ε205Tl ∼ −1) naturally occurs. The results show a positive linear relationship (R2 = 0.71) between 1/Tl record, as...
We studied the key geochemical and mineralogical factors that could affect fractionation of stable thallium (Tl) isotopes in soil. A set grassland soil samples enriched geogenic Tl combination with selected Tl-containing mineral materials from Czech Republic (Kluky) were investigated for this purpose. The results demonstrate significant incorporation pedogenic (specific) Mn-oxide, which led to a large accumulation heavy 205Tl isotope (∼+14 ε205Tl units), presumably resulting oxidative...
Illegal wildlife trade is currently on the rise, and it becoming one of most lucrative crime sectors. The rarer species, higher demand. Wildlife falls under international regulations, such as CITES convention. Proving that this convention has been violated a complex process can be very difficult to do. DNA analysis methods remain (in many cases) only way determine whether certain specimen originated from protected animal specific individual, or species in which legal trade. Tanned hides are...
Abstract The determination of δ 13 C and 15 N values is a common method in archaeological isotope analysis—in studying botanical human remains, dietary practices, less typically soils (to understand methods agricultural cultivation, including fertilization). Stable measurements are also commonly used ecological studies to distinguish different ecosystems trace diachronic processes biogeochemical mechanisms, however, the application this geochemical prospection, for determining historic...
Abstract Microinvertebrates in harsh environments often occupy the highest trophic levels and directly influence turnover of macroelements. However, investigation their body elemental composition is complicated due to low dry weight or sample size hindering application established methodological approaches. We present a new approach for estimation phosphorus (P) single multiple microinvertebrate species. As target model, we chose glacier tardigrades, which are among top consumers on...
Abstract The thermal evolution of magmatic systems the Altenberg‐Teplice and Tharandter Wald calderas, which erupted during terminal post‐collisional phase Variscan orogeny in Bohemian Massif, was investigated. zircon saturation temperatures Ti‐in‐zircon thermometer indicate that intrusive extrusive units two calderas were sourced from medium‐ to high‐temperature (∼770–930°C) felsic lower crustal magma. Using an integrated rock‐magnetic paleomagnetic approach through demagnetization stepwise...
Bioenergy crops such as Miscanthus × giganteus are foreseeable an alternative source to replace fossil fuel and reduce greenhouse gas emissions. They also assessed environment-friendly solution for polluted, marginal low-quality agricultural soils. Several studies had been launched on soil organic carbon sequestration potentials of miscanthus culture along with its impacts restoring functionality, most which focus the long-term basis plant’s cultivation. Nevertheless, information concerning...
In this study, we report combined Tl isotopic and mineralogical speciation data from a set of Tl-rich sulfide concentrates technological wastes hydrometallurgical Zn extraction. We also present the first evaluation ratios over cycle processing, ore flotation to pyro- stages. The results demonstrate that prevailing form in all samples is Tl(I), without any preferential incorporation into sulfides or Tl-containing secondary phases, indicating an absence redox reactions. Although concentrations...
Vertical profiles of Tl, Pb and Zn concentrations Tl isotopic ratios in a contaminated peatland/fen (Wolbrom, Poland) were studied to address questions regarding (i) potential long-term immobility peat profile, (ii) possible link signatures between source sample. Both prerequisites are required for using peatlands as archives atmospheric deposition proxy. We demonstrate that is an immobile element with conservative pattern synonymous Pb, contrast Zn. However, the record was more affected by...