A5032247296- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Atmospheric and Environmental Gas Dynamics
- CO2 Sequestration and Geologic Interactions
- Geology and Paleoclimatology Research
- Geochemistry and Elemental Analysis
- Marine and environmental studies
- Ocean Acidification Effects and Responses
- Marine Biology and Ecology Research
- Geological Studies and Exploration
- Hydraulic Fracturing and Reservoir Analysis
- Spacecraft and Cryogenic Technologies
- Paleontology and Stratigraphy of Fossils
- Offshore Engineering and Technologies
- Isotope Analysis in Ecology
- Oceanographic and Atmospheric Processes
- Marine and coastal ecosystems
- Geological formations and processes
- Geological and Geophysical Studies
- Seismic Imaging and Inversion Techniques
- Carbon Dioxide Capture Technologies
- Geological and Geophysical Studies Worldwide
- Arctic and Antarctic ice dynamics
- Microplastics and Plastic Pollution
- Microbial Community Ecology and Physiology
GEOMAR Helmholtz Centre for Ocean Research Kiel
2016-2025
Graz University of Technology
2022
GEOMAR Technologie GmbH - GTG
2017
Rensselaer Polytechnic Institute
2016
Technion – Israel Institute of Technology
2016
Clinical Research Center Kiel
2013
Kiel University
1999-2011
Leibniz Institute for Neurobiology
2010
University of Mobile
2009
Leibniz Association
2009
The accumulation of methane hydrate in marine sediments is controlled by a number physical and biogeochemical parameters including the thickness gas stability zone (GHSZ), solubility pore fluids, particulate organic carbon at seafloor, kinetics microbial matter degradation generation sediments, sediment compaction ascent deep-seated fluids into GHSZ. Our present knowledge on these controlling factors discussed new estimates global fluxes are provided applying transport-reaction model scale....
A comprehensive understanding of the deep-sea environment and mining’s likely impacts is necessary to assess whether under what conditions deep-seabed mining operations comply with International Seabed Authority’s obligations prevent ‘serious harm’ ensure ‘effective protection marine from harmful effects’ in accordance United Nations Convention on Law Sea. synthesis peer-reviewed literature consultations stakeholders revealed that, despite an increase research, there are few categories...
Abstract. The accumulation of gas hydrates in marine sediments is essentially controlled by the particulate organic carbon (POC) which microbially converted into methane, thickness hydrate stability zone (GHSZ) where methane can be trapped, sedimentation rate (SR) that controls time POC and generated stays within GHSZ, delivery from deep-seated ascending pore fluids GHSZ. Recently, Wallmann et al. (2012) presented transfer functions to predict inventory diffusion-controlled geological...
Simulated deep-sea mining disturbs the sediment integrity and reduces microbial cell numbers activities after 26 years.
Abstract The fate of plastic debris entering the oceans is largely unconstrained. Currently, intensified research devoted to abiotic and microbial degradation floating near ocean surface for an extended period time. In contrast, impacts environmental conditions in deep sea on polymer properties rigidity are virtually unknown. Here, we present unique results items identified have been introduced into deep-sea sediments at a water depth 4150 m eastern equatorial Pacific Ocean more than two...
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...
Deep-sea mining may be just a few years away and yet society is struggling to assess the positive aspects, such as increasing supply of metals for battery production fuel green revolution, versus potentially large environmental impacts. Mining polymetallic (manganese) nodules from deep ocean likely first mineral resource targeted will involve direct impacts hundreds km2 seabed per mine year. However, activity also cause generation sediment plumes that spread site have both immediate...
The recovery of natural gas from CH4-hydrate deposits in sub-marine and sub-permafrost environments through injection CO2 is considered a suitable strategy towards emission-neutral energy production. This study shows that the hot, supercritical particularly promising. addition heat triggers dissociation while CO2, once thermally equilibrated, reacts with pore water retained reservoir as immobile CO2-hydrate. Furthermore, optimal conditions pressure temperature are constrained. Experiments...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 382:69-86 (2009) - DOI: https://doi.org/10.3354/meps07956 Seabed methane emissions and habitat of frenulate tubeworms on Captain Arutyunov mud volcano (Gulf Cadiz) S. Sommer*, P. Linke, O. Pfannkuche, T. Schleicher, J. Schneider v. Deimling, A. Reitz, M. Haeckel, Flögel, C. Hensen Leibniz Institute Sciences,...
Research and regulations must be integrated to protect seafloor biota from future mining impacts
Hydrocarbon gas emissions from with decommissioned wells are an underreported source of greenhouse in oil and provinces. The associated may partly counteract efforts to mitigate fossil fuel infrastructure. We have developed approach for assessing methane leakage marine based on a combination existing regional industrial seismic newly acquired hydroacoustic water column imaging data the Central North Sea. Here, we present which show that 28 out 43 investigated release seafloor into column....
Geochemical data (CH 4 , SO 2− I − Cl particulate organic carbon (POC), δ 13 C‐CH and C‐CO 2 ) are presented from the upper 30 m of marine sediment on a tectonic submarine accretionary wedge offshore southwest Taiwan. The sampling stations covered three ridges (Tai‐Nan, Yung‐An, Good Weather), each characterized by bottom simulating reflectors, acoustic turbidity, different types faulting anticlines. Sulfate iodide concentrations varied little seawater‐like values in 1–3 at all stations;...