A5082227882- Geological formations and processes
- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Underwater Acoustics Research
- Geographic Information Systems Studies
- Hydrocarbon exploration and reservoir analysis
- Seismic Imaging and Inversion Techniques
- CO2 Sequestration and Geologic Interactions
- Marine and fisheries research
- Marine and coastal plant biology
- Landslides and related hazards
- Geological Studies and Exploration
- Advanced Computational Techniques and Applications
- Coral and Marine Ecosystems Studies
- Groundwater and Isotope Geochemistry
- Scientific Computing and Data Management
- Particle Detector Development and Performance
- Marine animal studies overview
- Hydraulic Fracturing and Reservoir Analysis
- Land Use and Ecosystem Services
- Heavy metals in environment
- Marine and environmental studies
- Remote Sensing and LiDAR Applications
- Geological Modeling and Analysis
British Geological Survey
2014-2025
University of Edinburgh
2007-2010
Pockmarks are seabed depressions developed by fluid flow processes that can be found in vast numbers many marine and lacustrine environments. Manual mapping of these features based on geophysical data is, however, extremely time-consuming subjective. Here, we present results from a semi-automated toolbox to allow more efficient objective pockmarks. This ArcGIS-based recognizes, spatially delineates, morphometrically describes Since it was first developed, the has helped map characterize...
Cold-water corals form substantial biogenic habitats on continental shelves and in deep-sea areas with topographic highs, such as banks seamounts. In the Atlantic, many reef mound complexes are engineered by Lophelia pertusa, dominant framework-forming coral. this study, a variety of mapping approaches were used at range scales to map distribution both cold-water coral individual colonies Mingulay Reef Complex (west Scotland). The new ArcGIS-based British Geological Survey (BGS) seabed...
The Confined Morphologies Mapping (CoMMa) Toolbox, a novel ArcGIS Pro python toolbox expressly created for semi-automated seabed morphological mapping, is presented here. includes selection of tools the pre-processing, delineation and description confined features on digital elevation model (DEM) that are either negative or positive. CoMMa Toolbox addresses need flexible multi-faceted solution applicable to different mapping problems, also encapsulating re-interpreting existing...
Three-dimensional (3D) seismic data, combined with semi-automated mapping in ArcGIS, were used to analyse the morphology and distribution of 720 pockmarks 62 mud volcanoes northern Gulf Mexico. The relationship amongst salt bodies, faults stresses significance these structures focusing fluid flow on continental margins. classified according their structural setting depth source, later correlated seep data from Bureau Ocean Energy Management (BOEM). Key findings include: a) half are located...
ABSTRACT Pockmarks are indicators of focused fluid seepage, most notably gas such as methane, and can occur in vast numbers many marine even lacustrine environments. The presence distribution pockmarks need to be considered the development any infrastructure at seabed. However, manual mapping these features extremely time‐consuming it is implicitly subjective. An extensive area central North Sea, where seabed comprises a thick sequence muds sandy late glacial Witch Ground Formation, shows...
Some of the highest density pockmark fields in world have been observed on northwest Australian continental shelf (>700/km2) where they occur muddy, organic-rich sediment around carbonate banks and paleochannels. Here we developed a semi-automated method to map quantify form these (~220,000 pockmarks) characterise their geochemical, sedimentological biological properties provide insight into formative processes. These data indicate that pockmarks formed due release gas derived from...
Abstract: The seismic character of slide deposits is typically described as structureless or chaotic. However, 3D data from the northern flank North Sea Fan reveal recognizable internal, penetrative structures within Tampen Slide deposits. study its attributes allowed an integrated characterization and has shown distinctive acoustic fabrics, both at top base deposit, which are interpreted to be expression internal deformation structures. Based on their geometry, four main fabric types have...
Subsurface injection of carbon dioxide (CO2) is a technique to enhance oil recovery and so the economic value depleting fields. It complements capture storage, which key technology mitigate greenhouse gas emissions. In this work, an integrated method developed by British Geological Survey Cardiff University uses high-resolution 3D seismic borehole data from Jæren High analyse potential seal breaches fluid flow paths in frontier area North Sea, ultimately assessing risk possible storage site....
Seabed morphology maps and data are critical for knowledge-building best practice management of marine environments. To facilitate objective repeatable production these maps, we have developed a number semi-automated, rule-based GIS tools (Geoscience Australia’s Semi-automated Morphological Mapping Tools - GA-SaMMT) to operationalise the mapping common set bathymetric high low seabed Features. The graphical user interface were using Python scripts under widely-adopted proprietary ArcGIS Pro...
A review of multibeam echo sounder (MBES) survey data from five locations around the United Kingdom northwest coast has led to identification a total 14 separate subaqueous mass movement scars and deposits within fjords (sea lochs) coastal inlets mainland Scotland, channels between islands Inner Hebrides. In these areas, Quaternary sediment deposition was dominated by glacial glaciomarine processes. Analysis morphometric parameters each submarine revealed that they fall into four distinct...
ABSTRACT Geochemical and related studies have been made of near-surface sediments from the River Clyde estuary adjoining areas, extending Glasgow to N, W as far Holy Loch on coast Scotland, UK. Multibeam echosounder, sidescan sonar shallow seismic data, taken with core information, indicate that a layer modern sediment, often less than metre thick, rests earlier glacial post-glacial sediments. The offshore Quaternary history can be aligned onshore sequences, recognition buried drumlins,...
Abstract Today Geographical Information Systems (GIS) are present at all stages of Exploration and Production process. Its strength is the ability to combine datasets from each specialty Geosciences: geology, geophysical, geochemistry, geotechnic, metocean. GIS widely known for being a powerful tool gather archive geographical data but one major its capacity be used analyzing data. The proposed approach real added value seabed geohazards assessment subsea layout validation. semi-automatic...
<title>Abstract</title> Massive injection of 13C depleted carbon to the ocean and atmosphere coincided with major environmental upheaval multiple times in geological record. For several events, source has been attributed explosive venting thermogenic gas produced when volcanic sills intrude organic-rich sediment. The concept mostly derives from studies sedimentary basins ancient hydrothermal vent complexes (HTVCs), because good examples younger than Early Eocene were not known. We present...
Maps of seabed geomorphology provide foundational information for a broad range marine applications. To be most effective, geomorphic characterisation the requires standardised, multi-scalar and interjurisdictional approaches that can applied locally, regionally internationally using best available data. An ongoing collaboration between geoscience agencies in United Kingdom (BGS), Norway (GSN), Ireland (GSI; UCC) Australia (GA; LU) has focused on developing new standardised approach to meet...
&lt;p&gt;The North Falkland Basin, a Mesozoic-aged sedimentary basin, located 40 km north of the Islands, is rift system comprising series offset depocentres. The largest depocentres, Eastern Graben, has proven petroleum hosting stratigraphic and combined structural-stratigraphic traps. In shallow section overlying this significant there selection unusual geomorphological features observable on 3D seismic data.&lt;/p&gt;&lt;p&gt;These are observed at time-depths...