A5008391025- Geology and Paleoclimatology Research
- Marine and environmental studies
- Geological formations and processes
- Water Resources and Management
- Geological Studies and Exploration
- Archaeology and ancient environmental studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and coastal ecosystems
- Climate change and permafrost
- Isotope Analysis in Ecology
- earthquake and tectonic studies
- Tree-ring climate responses
- Heavy metals in environment
- Aquatic and Environmental Studies
- Hydrology and Sediment Transport Processes
- Soil and Environmental Studies
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Geochemistry and Elemental Analysis
- Aerodynamics and Acoustics in Jet Flows
- Flood Risk Assessment and Management
- Aquatic Invertebrate Ecology and Behavior
- Diatoms and Algae Research
- Mercury impact and mitigation studies
- Paleontology and Stratigraphy of Fossils
University of Missouri
2024
Swiss Federal Institute of Aquatic Science and Technology
2013-2023
Karlsruhe Institute of Technology
2023
Government of Lower Austria
2023
Robert Bosch (United States)
2020-2021
European Central Bank
2007-2021
Caterpillar (Germany)
2020
University of Toronto
2019
TH Köln - University of Applied Sciences
2018
ETH Zurich
1982-2018
Annually laminated sediments from Lake Van, spanning about 13000 varve years, were sampled for stable-isotopic, geochemical, pollen and charcoal analyses in order to find evidence of past regional climatic changes human impact the semi-arid region eastern Anatolia, Turkey. The Lateglacial period was cold dry, with steppe vegetation saline lake water. During Younger Dryas level dropped dramatically, tumed a semi-desert. Geochemical isotopic records indicate strong increase moisture at onset...
Transport into sediments of the trace elements Cu, Zn, Pb, Cd, Cr, and Sr by settling particles was investigated in Lake Zurich; concentrations these collected sediment traps water column were determined at different times year. Correlations element with various main components (biological material, calcium carbonate, manganese iron oxides, silicate minerals) examination seasonal variations both particle fluxes to show that biological material is an important carrier phase (especially for Cu...
Lake Ohrid in southeastern Europe is one of the few ancient, long‐lived lakes world, and contains more than 200 endemic species. On basis integrated monitoring internal external nutrient fluxes, a progressing eutrophication was detected (~3.5‐fold increase phosphorus (P) concentration lake over past century). The fortunately still oligotrophic, with high concentrations dissolved oxygen (DO) deep water that are requisite for unique bottom fauna. Hypolimnetic DO not only very sensitive to...
Abstract The lithostratigraphic framework of L ake V an, eastern T urkey, has been systematically analysed to document the sedimentary evolution and environmental history lake during past ca 600 000 years. lithostratigraphy chemostratigraphy a 219 m long drill core from an serve separate global climate oscillations local factors caused by tectonic volcanic activity. An age model was established based on climatostratigraphic alignment chemical lithological signatures, validated 40 Ar / 39...
The Cadillac Mountain intrusive complex is dominated by the granite and a 2–3 km thick section of interlayered gabbroic, dioritic granitic rocks which occurs near base granite. layered record hundreds injections basaltic magma that ponded on chamber floor variably interacted with overlying silicic magma. Magmatic enclaves, ranging in composition from 55 to 78 wt % SiO2, are abundant above mafic rocks. most enclaves highly enriched incompatible elements depleted compatible elements. Their...
Lake sediments conserve important information about past conditions of a lake and its environments. We present analyses calcium, manganese, iron, copper, zinc, cadmium, mercury, lead in dated (210Pb, 137Cs, varve-chronology) sediment cores from Zürichsee (Lake Zurich), Switzerland, covering time span the last 200 years an additional interval between 13 500 15 000 before time. The concentrations these elements varied very little pre-anthropogenic represent geochemical background...
With the recent ban of pentabromodiphenyl ether (technical PentaBDE) and octabromodiphenyl OctaBDE) mixtures in European Union (EU) parts United States, decabromodiphenyl DecaBDE) remains as only polybrominated diphenyl (PBDE) based flame retardant available, today. The EU risk assessment report for DecaBDE identified a high level uncertainty associated with suitability current approach secondary poisoning by debromination to toxic lower brominated diphenylethers. Addressing this still open...
Fluvial processes have a significant impact on buildings and infrastructure despite their local character they cause annually considerable costs in mountain areas worldwide. Vulnerability studies are based mainly empirical data from past events whereas laboratory investigating the forces still limited. The paper presents study resulting complex flow buildings, influencing factors depend identification of process parameters correlate with. A 1:30 physical scale model was built, representing...
Endemic planktonic diatoms are a major component of Lake Baikal sediments during interglacial periods. To investigate how these diatom assemblages altered sediment formation, quantitative plankton monitoring (1995–1998) was integrated with trapping over 2 yr (1996–1997) in Baikal's southern basin (depth ~1,400 m). The traps consisted both open (~6 monthly) and sequential (~2 weekly) collectors deployed throughout the water column. Sedimentation seasonal, species composition, valve abundance,...