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Processed seismic data of Cruise MSM97 GeoHifi 2020

Regarding the use of renewable energy and the reduction of greenhouse-gas emissions, the geological storage of fluids is of particular interest. Therefore, reservoir and barrier formations in the German North Sea come into focus. Due to the widespread distribution of storage and barrier rocks at suitable depths and in combination with a relatively low tectonic overprint, the West Schleswig Block region in the German North Sea shows a high prospectivity for CO2 storage. By means of this high-resolution 2D reflection seismic survey, we want to investigate the potential impairment of geological barriers at the top of geological storage formations (i.e. claystones/mudstones and salt of the Upper Buntsandstein, mudstone dominated formations of the Lower Cretaceous and of the Tertiary). The seismic acquisition setup with a 2400 m active streamer cable with 384 channels will allow a precise image of near-surface structures, such as Quaternary channels, seismic pipe structures, chimneys, polygonal fault systems and crestal faults. In the time period between Nov. 13th and Nov. 24th we acquired 32 lines 2D seismic reflection data (about 1500 km in total) in combination with gravity data, multibeam data and sediment echosounder data. The seismic data resolve the sediments from the seafloor down to the base of the Zechstein. With the acquired data, the sediments of the Mesozoic and Cenozoic up to the seafloor (2-3 seconds of twoway-traveltime) will be imaged in high-resolution for the first time. The imaged fault systems will be investigated regarding their ability to build seal bypass systems. In addition, we acquired seismic data across the Figge Maar blowout crater and we intend to compare these data with the seismic data from the West Schleswig Block.

A Global Dataset of Bathymetric Features Identified with Prominence and Isobaths Analysis

This dataset comprises 125,514 submarine bathymetric features derived from the GEBCO_2025 Grid at 15 arc-second resolution (GEBCO Compilation Group, 2025) through computational analysis. Features were identified globally (excluding land areas) using topographic prominence calculation based on the algorithm of Kirmse and de Ferranti (2017), and characterized via isobath analysis. Each feature with prominence ≥300 m is represented as a polygon geometry with five nested contour levels (100%, 90%, 75%, 50%, and 25% from base to peak prominence level) and morphometric attributes including area, circularity, orientation, bounding box dimensions, and slope statistics. A companion point dataset contains all 143,888 detected peaks, including those rejected during quality control. The dataset provides an objective, reproducible global inventory of submarine features for research in marine geology, biodiversity, oeanography, and resource assessment. The attribute-rich structure enables users to define sub-classifications using standard SQL queries (e.g., filtering for seamounts using prominence ≥1000 m and circularity criteria). Data are distributed as OGC-compliant GeoPackage files. Processing was performed in 2025.

Processed seismic data of Cruise MSM9/3

The cruise leg MSM09/3 was conducted as a cooperative project between the Alfred Wegener Institute for Polar and Marine Research (AWI), the Federal Institute for Geosciences and Resources (BGR), the Geological Survey of Denmark and Greenland (GEUS) and Dalhousie University. The data format is Society of Exploration Geophysicists SEG Y. A geophysical survey covered areas of Baffin Bay and Davis Strait between Greenland and the Canadian Baffin Island. A component of the IPY 2007/08 Lead Project Plate Tectonics and Polar Gateways in the Earth System (PLATES & GATES), this project DAVIS GATE is aimed to develop a tectonic and sedimentary reconstruction of the opening process of this oceanic gateway. Baffin Bay and Davis Strait play an important role in the shallow water exchange from the Arctic to the Atlantic Ocean. The plate-tectonic evolution as well as the magmatic history of this region has been sparsely known and required a careful geophysical investigation in order to construct a set of gridded detailed paleotopographic maps for a complete geodynamic reconstruction of this gateway. With a set of three seismic refraction/wide-angle reflection profiles, using ocean-bottom seismometers on 62 stations, as well as multi-channel reflection seismic recordings with a 3000-m long streamer, data were acquired from the sedimentary cover to the deep crust and even from parts of the uppermost mantle. Additional seismic data supplement these profiles and provide insights into the structures of the basement and dominant fault zones such as the Ungava fault system. A parallel running magnetic survey aimed to resolve the temporal evolution of the oceanic crust of Baffin Bay. The extension and subsidence of the continental and transitional crust in the Davis Strait and the evolution of oceanic crust in the Labrador Sea and Baffin Bay could be investigated with dataset to which continuously recorded gravity anomaly data and sub-bottom profiler data also contribute. This dataset provides the basis of geometrical and physical properties of the crust required for a realistic geodynamic model which will describe the break-up and the ocean basin evolution between Greenland and Canada in terms of detailed paleo-topography.

OBS stations of the GEOSTOR project in the German Bight and in the German Baltic Sea (WMS)

The dataset includes the locations of OBS stations (Ocean Bottom Seismometers) operated in the German Bight during cruise MSM100 with R.V. Maria S. Merian. The time interval from 13.05.2021 to 15.05.2021 has been analysed in a phase without airgun operation for passive recording with 4.5 Hz geophones. Furthermore, the dataset contains locations of 3 broadband OBS systems which were operated during an experiment at the Darss ramp in the German Baltic Sea. The records were analysed in the time interval 23.01.2018 to 01.04.2018.

OBS stations of the GEOSTOR project in the German Bight and in the German Baltic Sea

The dataset includes the locations of OBS stations (Ocean Bottom Seismometers) operated in the German Bight during cruise MSM100 with R.V. Maria S. Merian. The time interval from 13.05.2021 to 15.05.2021 has been analysed in a phase without airgun operation for passive recording with 4.5 Hz geophones. Furthermore, the dataset contains locations of 3 broadband OBS systems which were operated during an experiment at the Darss ramp in the German Baltic Sea. The records were analysed in the time interval 23.01.2018 to 01.04.2018.

Processed seismic data of Cruise MSM14/2 2010

The initial study area of the cruise MSM14/2 GeoNORM (Geophysik im noerdlichen Roten Meer) was the northern Red Sea. However, because of not given research permissions from Egypt and Saudi Arabia, the study area had to be changed to the alternative study area Eratosthenes Seamount (ESM), south of Cyprus. The ESM is supposed to represent a continental fragment of the former African-Arabian Plate that is entering the subduction zone south of Cyprus i.e. the subduction turns into collision in the area of the ESM. This changed the entire tectonic setting in the Eastern Mediterranean. Therefore, the tectonic evolution of the area is rather complex with phases of extension, subduction, compression, salt tectonics and gravitational processes and not comprehensively understood. Because of the isolation of the ESM as a continental fragment this region is an ideal spot to investigate the transition from regular subduction to continental collision and its associated tectonic processes i.e. faults were activated or reactivated, transform motion has to be compensated, the overriding plate has been elevated. This impacts the ongoing geological and tectonic processes in this region but also influences the social and economic life in the Eastern Mediterranean as earthquakes and submarine landslides are possible geohazards and the entering of the ESM to the subduction trench alters the thermal history of the adjacent sedimentary basins significantly what should have an influence on the maturity processes within the source rock sediments and new faults open new migration paths for hydrocarbon fluids or gases.

INSPIRE: EMODnet-DE - Offshore Geology - Quaternary (EMODnet-DE Quaternary)

Compilation of the European Quaternary marine geology (section of Germany). The map consists of data at highest available spatial resolution, map scale („multi-resolution“-concept) and data completeness vary depending on the project partner (as of 2019 April). Project partners are the national geological services of the participating countries. According to the Data Specification on Geology (D2.8.II.4_v3.0) the content of the geological map is stored in a INSPIRE-compliant GML file: EMODnet-DE_Quaternary_GeologicUnit.gml contains the geologic units. The GML file together with a Readme.txt file are provided in ZIP format (EMODnet-DE_Quaternary-INSPIRE.zip). The Readme.text file (German/English) contains detailed information on the GML file content. Data transformation was proceeded by using the INSPIRE Solution Pack for FME according to the INSPIRE requirements.

Geowissenschaftliches Berichtsarchiv Meeresgeologie, Mecklenburg-Vorpommern

1. Berichte zu geologischen Sachverhalten der Sedimentverteilung in ausgewählten Bereichen der Ostsee 2. Berichte, Gutachten und Stellungnahmen zur Erkundung von Ostseekiesen im Schelfbereich

Surveillance du site d'immersion des dechets faiblement radioactifs en Atlantique Nord-Est (FRA)

Etude des processus de remobilisation des radionuclides sur le site d'immersion de l'Atlantique Nord-Est. Ce programme comporte des campagnes oceanographiques en mer realisees en collaboration avec des instituts de recherche Allemands, Anglais et Hollandais. Sont etudies: a) Des processus de resuspension des sediments. b) La composition chimique et mineralogique de ces sediments. c) La composition chimique des particules en suspension. Ce programme s'integre au programme general de surveillance coordonne par l'Agence de l'Energie Nucleaire de l'OCDE. Trois campagnes ont ete realisees en 1982 et 1983. Les donnees obtenues sont actuellement integrees a un modele de resuspension et de circulation a petite echelle, developpe a l'Universite de Harvard. (FRA)

EasyGSH-DB: Morphologischer Raum (1996-2016)

Definition: Der morphologische Raum ist der Betrag der Differenz zwischen maximaler und minimaler Höhe eines Ortes über den Verlauf mehrerer Zeitschritte. Er kann genutzt werden, um morphologisch stabile Bereiche zu identifizieren, die zum Beispiel als potentielle Gebiete für Bauprojekte in Betracht kommen. Datenerzeugung: Die Basis für bathymetrische Produkte bilden gerasterte bathymetrische Modelle, die mithilfe des Funktionalen Bodenmodells, einem datenbasierten hindcast-Simulationsmodell, über räumlich-zeitliche Interpolationsverfahren aus einer Datenbasis von See- und Landvermessungen verschiedenster Datentypen erstellt werden. Für jedes Jahr von 1996 bis inklusive 2016 wird ein gerastertes bathymetrisches Modell in 10 m Auflösung für die Deutsche Bucht und zusätzlich in 250 m Auflösung für die Ausschließliche Wirtschaftszone für das Jahr 1996 erstellt. Für die Deutsche Bucht wird der morphologische Raum für jeden Rasterknoten berechnet, indem aus den bathymetrischen Modellen der jeweils höchste und niedrigste z-Wert über 21 Jahre Betrachtungsraum ermittelt und die Differenz zmax-zmin gebildet wird. Die maximale Spannweite der Gewässerbodenhöhe wird an jedem Punkt dargestellt. Da es sich um eine Auswertung mehrerer Zeitschritte handelt, ist der morphologische Raum nicht für die Ausschließliche Wirtschaftszone ermittelbar. Produkt: 10 m Raster der Deutschen Bucht, wobei an jedem Rasterknoten der Betrag des morphologischen Raums über den Zeitraum 1996 bis 2016 abgelegt ist. Das Produkt wird im GeoTiff-Format bereitgestellt. Zitat für diesen Datensatz (Daten DOI): Sievers, J., Rubel, M., Milbradt, P. (2020): EasyGSH-DB: Themengebiet - Geomorphologie. Bundesanstalt für Wasserbau. https://doi.org/10.48437/02.2020.K2.7000.0001 Literatur: Sievers, J., Milbradt, P., Ihde, R., Valerius, J., Hagen, R., Plüß, A. (2021): An integrated marine data collection for the German Bight – Part 1: Subaqueous geomorphology and surface sedimentology (1996–2016). Earth System Science Data. https://doi.org/10.5194/essd-13-4053-2021 English Download: The data for download can be found under References ("Weitere Verweise"), where the data can be downloaded directly or via the web page redirection to the EasyGSH-DB portal.

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