A5024853091- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Seismic Imaging and Inversion Techniques
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Geological formations and processes
- earthquake and tectonic studies
- Atmospheric and Environmental Gas Dynamics
- Geological and Geochemical Analysis
- Geological Studies and Exploration
- Geological Modeling and Analysis
- Seismic Waves and Analysis
- Astro and Planetary Science
- Landslides and related hazards
- Geophysics and Gravity Measurements
- Geophysical and Geoelectrical Methods
- Reservoir Engineering and Simulation Methods
- Geomagnetism and Paleomagnetism Studies
- Marine and environmental studies
- Geological and Geophysical Studies Worldwide
- Planetary Science and Exploration
- CO2 Sequestration and Geologic Interactions
- Astronomical Observations and Instrumentation
- Paleontology and Stratigraphy of Fossils
- Offshore Engineering and Technologies
GEOMAR Helmholtz Centre for Ocean Research Kiel
2016-2025
Moss Landing Marine Laboratories
2024
University of North Carolina at Chapel Hill
2024
GEOMAR Technologie GmbH - GTG
2012-2023
Shanghai Jiao Tong University
2023
China University of Petroleum, East China
2023
Manchester University
2023
Newcastle University
2023
International Ocean Discovery Program
2023
Volcanic Basin Petroleum Research (Norway)
2001-2023
More than 250 plumes of gas bubbles have been discovered emanating from the seabed West Spitsbergen continental margin, in a depth range 150–400 m, at and above present upper limit hydrate stability zone (GHSZ). Some extend upward to within 50 m sea surface. The is predominantly methane. Warming northward‐flowing current by 1°C over last thirty years likely increased release methane reducing extent GHSZ, causing liberation decomposing hydrate. If this process becomes widespread along Arctic...
Methane hydrate is an icelike substance that stable at high pressure and low temperature in continental margin sediments. Since the discovery of a large number gas flares landward termination stability zone off Svalbard, there has been concern warming bottom waters have started to dissociate amounts resulting methane release may possibly accelerate global warming. Here, we corroborate hydrates play role observed seepage gas, but present evidence Svalbard ongoing for least 3000 years seasonal...
Abstract The North Sea Basin has been covered by ice sheets originating from both the British Isles and Scandinavia at multiple times during Pleistocene. Witch Ground (WGB) in central northern is a critical location terms of interpreting Late Pleistocene glacial to glacimarine history since it was Ice Stream that active on occasions Mid We map five mega‐scale lineation flowsets corresponding changing flow direction investigate sedimentological fingerprint subglacial depositional processes...
Abstract Methane seepage from the upper continental slopes of Western Svalbard has previously been attributed to gas hydrate dissociation induced by anthropogenic warming ambient bottom waters. Here we show that sediment cores drilled off Prins Karls Foreland contain freshwater dissociating hydrates. However, our modeling indicates observed pore water freshening began around 8 ka BP when rate isostatic uplift outpaced eustatic sea-level rise. The resultant local shallowing and lowering...
Region in Lower Saxony (North Germany) covered by the measuring range of weather radar device located near Hanover (approx. 50.000 m2). This study investigates performance various spatial interpolation techniques for climate variables. Meteorological observations are usually recorded as site-specific point information stations and estimation accuracy unobserved locations depends generally on station density, temporal resolution, variation variable choice method. work aims to evaluate...
There is a strong spatial correlation between submarine slope failures and the occurrence of gas hydrates. This has been attributed to dynamic nature hydrate systems potential reduction stability due bottom water warming or sea level drop. However, 30 years research into this process found no solid supporting evidence. Here we present new reflection seismic data from Arctic Ocean numerical modelling results different link hydrates stability. Hydrates reduce sediment permeability cause...
Carbon capture and storage (CCS) is a key technology to reduce carbon dioxide (CO2) emissions from industrial processes in feasible, substantial, timely manner. For geological CO2 be safe, reliable, accepted by society, robust strategies for leakage detection, quantification management are crucial. The STEMM-CCS (Strategies Environmental Monitoring of Marine Capture Storage) project aimed provide techniques understanding enable inform cost-effective monitoring CCS sites the marine...
Abstract The Palaeocene–Eocene Thermal Maximum (PETM) was a global warming event of 5–6 °C around 56 million years ago caused by input carbon into the ocean and atmosphere. Hydrothermal venting greenhouse gases produced in contact aureoles surrounding magmatic intrusions North Atlantic Igneous Province have been proposed to play key role PETM carbon-cycle perturbation, but precise timing, magnitude climatic impact such remains uncertain. Here we present seismic data results five-borehole...
Despite their global societal importance, the volumes of large-scale volcanic eruptions remain poorly constrained. Here, we integrate seismic reflection and P-wave tomography datasets with computed tomography-derived sedimentological analyses to estimate volume iconic Minoan eruption. Our results reveal a total dense-rock equivalent eruption 34.5 ± 6.8 km³, which encompasses 21.4 3.6 km³ tephra fall deposits, 6.9 2 ignimbrites, 6.1 1.2 intra-caldera deposits. 2.8 1.5 material consists...
Abstract 2D and 3D seismic data from the mid-Norwegian margin show that polygonal fault systems are widespread within fine-grained, Micene sediments of Kai Formation overlie Mesozoic/Early Cenozoic rift basins. Outcropping faults de-watering development commenced shortly after burial. On other hand, system’s stratigraphic setting, upward decreasing throw association with fluid flow features attributed to shows faulting expulsion is an ongoing process since Miocene times.
Voluminous volcanism characterized Early Tertiary continental break-up on the mid-Norwegian margin. The distribution of associated extrusive rocks derived from seismic volcanostratigraphy and potential field data interpretation allows us to divide Møre, Vøring Lofoten–VesterÅlen margins into five segments. central Møre Margin northern show combinations volcanic facies units that are characteristic for typical rifted margins. Margin, southern area near Jan Mayen Fracture Zone related...
Abstract During opening of a new ocean, magma intrudes into the surrounding sedimentary basins. Heat provided by intrusions matures host rock, creating metamorphic aureoles potentially releasing large amounts hydrocarbons. These hydrocarbons may migrate to seafloor in hydrothermal vent complexes sufficient volumes trigger global warming, e.g., during Paleocene-Eocene Thermal Maximum (PETM). Mound structures at top buried observed seismic data off Norway were previously interpreted as...