A5076634061- Geology and Paleoclimatology Research
- Geological formations and processes
- Pleistocene-Era Hominins and Archaeology
- Isotope Analysis in Ecology
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Geological and Geophysical Studies
- Marine and environmental studies
- Paleontology and Stratigraphy of Fossils
- Archaeology and ancient environmental studies
- Tree-ring climate responses
- Methane Hydrates and Related Phenomena
- Rangeland Management and Livestock Ecology
- Maritime and Coastal Archaeology
- Subterranean biodiversity and taxonomy
- Groundwater and Isotope Geochemistry
- Geological and Geophysical Studies Worldwide
- Evolution and Paleontology Studies
- Marine Biology and Ecology Research
- Aeolian processes and effects
- Geochemistry and Geologic Mapping
- Aquatic Invertebrate Ecology and Behavior
- Environmental DNA in Biodiversity Studies
- Climate change and permafrost
- Geological and Geochemical Analysis
University of Iceland
2015-2024
Geological Survey of Israel
2024
Chinese Academy of Geological Sciences
2021
Mineral Resources
2021
Freie Universität Berlin
2005-2014
University of Potsdam
2010-2014
Abstract Quantitative information on vegetation and climate history from the late glacial–Holocene Tibetan Plateau is extremely rare. Here, we present palynological results of a 4.30-m-long sediment record collected Koucha Lake in Bayan Har Mountains, northeastern Plateau. Vegetation change has been traced by biomisation, ordination pollen data, calculation ratios. The application pollen–climate calibration set eastern to spectra yielded quantitative information. area was covered alpine...
Abstract Aim Fossil pollen spectra from lake sediments on the Tibetan Plateau have been used for qualitative climate reconstruction, but no modern pollen–climate calibration set based is available to infer past quantitatively. This study aims develop such a dataset and apply it fossil data. Location The Plateau, between 30 40° N 87 103° E. Methods We collected surface 112 lakes analysed them palynologically. span wide range of mean annual precipitation ( P ann ; 31–1022 mm), temperature T...
Abstract. Pollen records from large lakes have been used for quantitative palaeoclimate reconstruction, but the influences that lake size (as a result of species-specific variations in pollen dispersal patterns smaller grains are more easily transported to centre) and taphonomy on these climatic signals not previously systematically investigated. We introduce concept source area pollen-based climate calibration using north-eastern Tibetan Plateau as our study area. present data set collected...
The limited availability of high-resolution continuous archives, insufficient chronological control, and complex hydro-climatic forcing mechanisms lead to many uncertainties in palaeo-hydrological reconstructions for the Western Mediterranean. In this study we present a newly recovered 19.63 m long core from Lake Sidi Ali North African Middle Atlas, transition zone Atlantic, Mediterranean Saharan air mass trajectories. With multi-proxy approach based on magnetic susceptibility, carbonate...
Abstract Studies along elevational gradients worldwide usually find the highest plant taxa richness in mid-elevation forest belts. Hence, an increase upper elevation diversity is expected course of warming-related treeline rise. Here, we use a time-series approach to infer past from sedimentary ancient DNA south-eastern Tibetan Plateau over last ~18,000 years. We total during cool phase after glacier retreat when area contained extensive and diverse alpine habitats (14–10 ka); followed by...
Abstract A 13.94-m-long sediment core, collected from a medium-sized lake in the Qilian Mountains (NE Tibetan Plateau, China), was analysed palynologically at 81 horizons. The interpretation of indicator taxa yielded various vertical shifts vegetation belts. These palaeovegetation results have been checked with surface pollen spectra 8 lakes representing different altitudinal Our main findings are following: short period late Marine Isotope Stage 3 (around ∼46,000 yr ago) characterized by...
Abstract Predominantly laminated lake sediments from a saline closed‐basin on the northeastern Tibetan Plateau were investigated using multi‐proxy approach ( 14 C‐accelerator mass spectrometry dating, smear‐slide analysis, loss ignition, grain size, X‐ray diffraction, elemental concentration, ostracod assemblages, stable isotopes of shells) to trace regional environmental and climatic history in Lateglacial Holocene. Before about 15 cal. ka BP, small water bodies probably filled basin under...
We present a late glacial pollen record (17,700 to 8500 cal yr BP) from Lake Naleng sediment core. is located on the southeastern Tibetan Plateau (31.10°N 99.75°E, 4200 m) along upper tree-line. Variations in summer monsoon are evident shifts vegetation that correspond climate trends other monsoon-sensitive regions. Alpine steppe was recorded between 17,700 and 14,800 BP, indicating low effective moisture at study site. Expansion of alpine meadows followed by advances position tree-line...
The Sahara is the world's largest dust source with significant impacts on trans-Atlantic terrestrial and large-scale marine ecosystems. Contested views about a gradual or abrupt onset of Saharan aridity at end African Humid Period dominate current scientific debate Holocene desiccation. In this study, we present 19.63 m sediment core sequence from Lake Sidi Ali (Middle Atlas, Morocco) North desert margin. We reconstruct interaction between supply Western Mediterranean hydro-climatic...