A5049553219- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Geochemistry and Elemental Analysis
- Paleontology and Stratigraphy of Fossils
- Radioactive element chemistry and processing
- Geochemistry and Geologic Mapping
- Marine and coastal ecosystems
- Groundwater and Isotope Geochemistry
- Geological and Geochemical Analysis
- Geological Studies and Exploration
- Heavy metals in environment
- Marine and environmental studies
- Isotope Analysis in Ecology
- Geological formations and processes
- Geological and Geophysical Studies
- Polar Research and Ecology
- Atmospheric and Environmental Gas Dynamics
- Radioactive contamination and transfer
- Analytical chemistry methods development
- earthquake and tectonic studies
- Thallium and Germanium Studies
- Arctic and Antarctic ice dynamics
- Coastal wetland ecosystem dynamics
- Mercury impact and mitigation studies
Carl von Ossietzky Universität Oldenburg
2015-2024
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2018
Institute for Biodiversity
2013
Newcastle University
2013
University of Göttingen
1994
Abstract We present high‐resolution records for oxygen isotopes of the planktic foraminifer Globigerinoides ruber (δ 18 O ) and bulk sediment inorganic geochemistry Holocene‐age sediments from southeast Mediterranean. Our δ record appears to be dominated by Nile discharge rather than basin‐scale salinity/temperature changes. was enhanced in early middle Holocene relative today. The timing long‐term maximum during corresponds intensity Indian Ocean‐influenced Southwest summer monsoon (SIM)....
In general, a moderate drying trend is observed in mid-latitude arid Central Asia since the Mid-Holocene, attributed to progressively weakening influence of Westerlies on regional climate. However, as spatio-temporal pattern this development and underlying climatic mechanisms are yet not fully understood, new high-resolution paleoclimate records from region needed. Within study, sediment core Lake Son Kol (Central Kyrgyzstan) was investigated using sedimentological, (bio)geochemical,...
Abstract During International Ocean Discovery Program (IODP) expeditions, shipboard‐generated data provide the first insights into cored sequences. The natural gamma radiation (NGR) of recovered material, for example, is routinely measured on ocean drilling research vessel DV JOIDES Resolution . At present, only total NGR counts are readily available as shipboard data, although full spectra (counts a function gamma‐ray energy level) produced and archived. These contain unexploited...
A method for determining iodine, bromine, chlorine and fluorine in geological biological materials is described. In a quartz tube, solid material was heated to 1100 °C under wet oxygen flow (pyrohydrolysis). By this process the halogens (I, Br, Cl, F) were separated from matrix then collected receiver solution. The chemical yield of iodine determined by radioactive tracer. ICP-MS ion chromatographic measurements used determination halogens. optimized investigating different experimental...
Research Article| February 01, 2011 Late Archean euxinic conditions before the rise of atmospheric oxygen Clinton T. Scott; Scott * 1Department Earth Science, University California−Riverside, Riverside, California 92521, USA *Current address: Department and Planetary Sciences, McGill University, Montreal, Quebec H3A 2A7, Canada. Search for other works by this author on: GSW Google Scholar Andrey Bekker; Bekker 2Department Geological Manitoba, Winnipeg, Manitoba R3T 2N2, Canada Christopher...
Phosphorus (P) is a key nutrient for marine organisms. The only long-term removal pathway P in the realm burial sediments. Iron (Fe) bound accounts significant proportion of this at global scale. In sediments underlying anoxic bottom waters, Fe-bound generally assumed to be negligible because reductive dissolution Fe(III) (oxyhydr)oxides and release associated P. However, recent work suggests that an important phase euxinic (i.e. sulfidic) basin Baltic Sea. study, we investigate role as...
Submarine groundwater discharge (SGD) is a ubiquitous source of meteoric fresh and recirculating seawater to the coastal ocean. Due hidden distribution SGD, as well hydraulic- stratigraphy-driven spatial temporal heterogeneities, one biggest challenges date correct assessment SGD-driven constituent fluxes. Here, we present results from 3-dimensional seasonal sampling campaign shallow subterranean estuary in high-energy, meso-tidal beach, Spiekeroog Island, Northern Germany. We determined...
Abstract Changes in penguin populations on the Antarctic Peninsula have been linked to several environmental factors, but potentially devastating impact of volcanic activity has not considered. Here we use detailed biogeochemical analyses track past colony change over last 8,500 years Ardley Island, home one Peninsula’s largest breeding gentoo penguins. The first sustained was established Island c. 6,700 ago, pre-dating sub-fossil evidence Peninsula-wide occupation by 1,000 years....
The deep basins of the Baltic Sea, including Gotland and Landsort Deeps, are well known for exceptional occurrence sedimentary Mn carbonate. Although details mechanisms carbonate formation still under debate, a close relationship with episodic major inflows (MBIs) is generally assumed, at least Basin. However, few studies on cycling during MBIs suffer from limited temporal resolution. Here we report dynamics in water column sediments Deep following an MBI that entered Sea December 2014....
Sulfurization of DOM in the Black Sea highlights an additional mechanism for organic carbon sequestration O 2 -limited basins.
The development and application of geochemical techniques to identify redox conditions in modern ancient aquatic environments has intensified over recent years. Iron (Fe) speciation emerged as one the most widely used procedures distinguish different regimes both water column sediments, is main technique oxic, ferruginous (anoxic, Fe(II) containing) euxinic sulfidic) conditions. However, an international sediment reference material never been developed. This led concern consistency results...