Titschack, Jürgen; Yapan, Batuhan Çağrı; Otte, Julia Marén; Janssen, Felix; Timann, Christian; Lemke, Arne-Jörn (2020): Computed tomography analysis of multicorer SO268/2_122-1, core14 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.924449
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Published: 2020-11-04 • DOI registered: 2021-11-23
Abstract:
Selected multicorer cores of R/V Sonne cruise SO268-2 were scanned by a Toshiba Aquilion 64 computer tomograph (CT) at the hospital Klinikum Bremen-Mitte with an x-ray source voltage of 120 kV and a current of 600 mA. The CT image stacks have a resolution of 0.35 mm in x/y-direction and 0.5 mm resolution in z-direction (0.3 mm reconstruction unit). Images were reconstructed using Toshiba's patented helical cone beam reconstruction technique (TCOT) and are provided in DICOM-format. The data were processed with the ZIB edition of the Amira software (version 2021.03; Stalling et al., 2005; http://amira.zib.de). Within Amira, the core liners, including about 2 mm of the core rims, were deleted from the data set. Mangan nodules with diameters >~1 mm, open bioturbation traces, an unidentified organism (only present in core SO268-2-200-1 MC18), the natural bioturbated and surficial homogenised sediment were segmented by a marker-based watershed segmentation and visualized in 3D. Subsequently, the sediment components were quantified (MaterialStatistics module; volume per slice) and the mean and standard deviation of the sediment x-ray attenuation (MaterialStatistics module; statistics per slice per label; to avoid marginal averaging effects the sediment label was reduced by three voxels) were determined.
Further details:
Stalling, Detlev; Westerhoff, Malte; Hege, Hans-Christian (2005): Amira: A Highly Interactive System for Visual Data Analysis. In: Hansen, C.D., Johnson, C.R. (Eds.), Visualization Handbook. Butterworth-Heinemann, Burlington, 749-767, https://doi.org/10.1016/B978-012387582-2/50040-X
Vonnahme, Tobias; Molari, Massimiliano; Janssen, Felix; Wenzhöfer, Frank; Haeckel, Matthias; Titschack, Jürgen; Boetius, Antje (2020): Effects of a deep-sea mining experiment on seafloor microbial communities and functions after 26 years. Science Advances, 6(18), eaaz5922, https://doi.org/10.1126/sciadv.aaz5922
Project(s):
JPI Oceans - Ecological Aspects of Deep-Sea Mining (JPIO-MiningImpact)
Coverage:
Latitude: 11.862883 * Longitude: -117.013167
Date/Time Start: 2019-04-12T10:51:48 * Date/Time End: 2019-04-12T10:51:48
Minimum DEPTH, sediment/rock: 0.0000 m * Maximum DEPTH, sediment/rock: 0.2367 m
Event(s):
SO268/2_122-1 (MUC-24) * Latitude: 11.862883 * Longitude: -117.013167 * Date/Time: 2019-04-12T10:51:48 * Elevation: -4123.7 m * Location: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * Campaign: SO268/2 * Basis: Sonne_2 * Method/Device: Multicorer with television (TVMUC) * Comment: GER Dredge; Position USBL; TV-MUC
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
9480 data points
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