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  • PANGAEA  (4)
  • Nature Research  (3)
Document type
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Years
  • 1
    Publication Date: 2023-03-03
    Description: Gridded multibeam bathymetry from Pelagia cruise 64PE445, Project SALTAX in 2018. The raw-data were post-processed and gridded at a resolution of 30 m with QPS Qimera. Small gaps are interpolated. TFW and PRJ files included. For RAW data please contact the authors.
    Keywords: 64PE445; 64PE445_MB; Bathymetry; MBES; mid ocean rift; Multibeam echosounder; Pelagia; Red Sea; red sea rift; SALTAX
    Type: Dataset
    Format: application/zip, 6.5 MBytes
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-04-20
    Description: This dataset contains a processed high-resolution (2m) bathymetry grid from the eastern axial volcanic ridge of Hadarba Deep. The acquisition was carried out in February 2022 from the OSS Handin Tide using the 6000m rated Hugin Superior AUV provided by FUGRO. The AUV was equipped with a Kongsberg EM2040 Mk2 multibeam echosounder set to 200 kHz. USBL navigation data were post-processed in NavLab. The bathymetry data were post-processed, merged with the corrected navigation, gridded, and interpolated in QPS Qimera. Multibeam backscatter data (0.8 m) were mosaiced in QPS FMGT from the raw data and cleaned Qimera GSF exports (both the bathymetric grid and backscatter mosaic are provided). All files' coordinate reference system (CRS) is EPSG:32637 - WGS 84 / UTM zone 37N.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (Media Type); Elevation, maximum; Elevation, minimum; Extracted from file; File content; Horizontal datum; Horizontal datum, projection stored in file; HT_02-2022; HT_02-2022-2; Latitude, northbound; Latitude, southbound; Longitude, eastbound; Longitude, westbound; Multibeam echosounder, Kongsberg Maritime, EM 2040; mounted on Autonomous Underwater Vehicle (AUV), Kongsberg, Hugin Superior; OSS Handin Tide; Raster cell size; UTM Easting, Universal Transverse Mercator; UTM Northing, Universal Transverse Mercator; UTM Zone, Universal Transverse Mercator; Vertical datum
    Type: Dataset
    Format: text/tab-separated-values, 31 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-04-20
    Description: Multibeam bathymetry raw data was recorded in the North Atlantic during cruise MSM70 that took place between 2017-12-25 and 2018-02-04. The data was collected using the ship's own Kongsberg EM 122. Sound velocity profiles (SVP) were applied on the data for calibration. SVP data are part of this dataset publication. This data is part of the DAM (German Marine Research Alliance) underway research data project.
    Keywords: Bathymetry; Binary Object; DAM_Underway; DAM Underway Research Data; Data file recording distance; Data file recording duration; DATE/TIME; EM122; EM122 multibeam echosounder; Event label; Expendable Sound Velocimeter; File content; LATITUDE; LONGITUDE; Maria S. Merian; MSM70; MSM70_0_underway-8; MSM70_1-1; MSM70_28-1; Multibeam Echosounder; Ship speed; Sound velocity profiler; South Atlantic Ocean; Start of data file recording, date/time; Start of data file recording, latitude; Start of data file recording, longitude; Stop of data file recording, date/time; Stop of data file recording, latitude; Stop of data file recording, longitude; SVP; XSV
    Type: Dataset
    Format: text/tab-separated-values, 5979 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-04-20
    Description: This zip file contains a processed high-resolution (2m) bathymetry grid from the summit of the Hatiba Mons volcano in the Red Sea rift. The data were collected in February 2022 with a 6000m rated Hugin Superior AUV provided by FUGRO. The AUV carried a Kongsberg EM2040 Mk2 multibeam echosounder set to 200 kHz. USBL navigation data were post-processed in NavLab. The bathymetry data were post-processed, merged with the corrected navigation, gridded, and interpolated in QPS Qimera. Multibeam backscatter data (1m) were mosaiced in QPS FMGT from the raw data and cleaned Qimera GSF exports (both mosaics are provided). All files' coordinate reference system (CRS) is EPSG:32637 - WGS 84 / UTM zone 37N.
    Keywords: AUV; AUV bathymetry; Backscatter; Bathymetry; Bathymetry and Backscatter; Binary Object; Binary Object (File Size); Binary Object (Media Type); Elevation, maximum; Elevation, minimum; File content; high-resolution bathymetry; Horizontal datum; Horizontal datum, projection stored in file; HT_02-2022; HT_02-2022-1; Latitude, northbound; Latitude, southbound; Longitude, eastbound; Longitude, westbound; Mid-Ocean Ridge; Multibeam echosounder, Kongsberg Maritime, EM 2040; mounted on Autonomous Underwater Vehicle (AUV), Kongsberg, Hugin Superior; OSS Handin Tide; Raster cell size; Red Sea; red sea rift; Seamount; submarine volcano; UTM Easting, Universal Transverse Mercator; UTM Northing, Universal Transverse Mercator; UTM Zone, Universal Transverse Mercator; Vertical datum
    Type: Dataset
    Format: text/tab-separated-values, 45 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2021-02-08
    Description: Continental breakup represents the successful process of rifting and thinning of the continental lithosphere, leading to plate rupture and initiation of oceanic crust formation. Magmatism during breakup seems to follow a path of either excessive, transient magmatism (magma-rich margins) or of igneous starvation (magma-poor margins). The latter type is characterized by extreme continental lithospheric extension and mantle exhumation prior to igneous oceanic crust formation. Discovery of magma-poor margins has raised fundamental questions about the onset of ocean-floor type magmatism, and has guided interpretation of seismic data across many rifted margins, including the highly extended northern South China Sea margin. Here we report International Ocean Discovery Program drilling data from the northern South China Sea margin, testing the magma-poor margin model outside the North Atlantic. Contrary to expectations, results show initiation of Mid-Ocean Ridge basalt type magmatism during breakup, with a narrow and rapid transition into igneous oceanic crust. Coring and seismic data suggest that fast lithospheric extension without mantle exhumation generated a margin structure between the two endmembers. Asthenospheric upwelling yielding Mid-Ocean Ridge basalt-type magmatism from normal-temperature mantle during final breakup is interpreted to reflect rapid rifting within thin pre-rift lithosphere.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-02-07
    Description: The crustal and tectonic structure of the Red Sea and especially the maximum northward extent of the (ultra)slow Red Sea spreading centre has been debated—mainly due to a lack of detailed data. Here, we use a compilation of earthquake and vertical gravity gradient data together with high-resolution bathymetry to show that ocean spreading is occurring throughout the entire basin and is similar in style to that at other (ultra)slow spreading mid-ocean ridges globally, with only one first-order offset along the axis. Off-axis traces of axial volcanic highs, typical features of (ultra)slow-spreading ridges, are clearly visible in gravity data although buried under thick salt and sediments. This allows us to define a minimum off-axis extent of oceanic crust of 〈55 km off the coast along the complete basin. Hence, the Red Sea is a mature ocean basin in which spreading began along its entire length 13 Ma ago.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-02-07
    Description: For decades, hydrothermal activity along the Red Sea Rift was only inferred from metalliferous sediments and hot brines. Active hydrothermal fluid discharge was never directly observed from this young ocean basin, but could be key to understanding the evolution of hydrothermal vent fields and associated life. Here we report the discovery of widespread diffuse venting at Hatiba Mons, the largest axial volcano in the Red Sea. The active vent fields are composed of iron-oxyhydroxide mounds, host thriving microbial communities and are larger and more abundant than those known from any other (ultra) slow-spreading mid-ocean ridge. Diffuse venting, controlled by intense faulting, and the lack of vent-specific macrofauna, are likely causes for the abundant microbial mats that dominate and built up the hydrothermal mounds. These microbe-rich hydrothermal vent fields, occurring in a warm ocean, may be analogous to Precambrian environments hosting early life and supporting the formation of large iron deposits.
    Type: Article , PeerReviewed
    Format: text
    Format: text
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