Gebhardt, Andrea Catalina; Daub, Pascal (2025): CT-Scan of sediment core PS128_39-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982479
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Published: 2025-05-16 • DOI registered: 2025-06-14
Abstract:
Core PS128_39-1 was retrieved from the mid-shelf portion of the Nielsen Basin (Mac. Robertson Shelf), a cross-shelf paleo-ice stream trough. To aid with lithological investigations, sectional views were extracted from 3D computed tomography (CT) scans performed on a Geotek RXCT scanner. A Thermo Kevex PSX10-65W was used as the x-ray source, run at a voltage of 130 kV with a current of 303 mA. After acquisition with the native Geotek XCT (v.5) software and subsequent pre-processing steps, orthogonal views of each core section were extracted from the central pixel of the reconstructed scan at a resolution of 68 pixels per cm. For better visualization, the histograms of the resulting .tif files were adjusted.
Related to:
Tiedemann, Ralf; Müller, Juliane (2022): The Expedition PS128 of the Research Vessel POLARSTERN to the Weddell Sea, Lazarew Sea, Riiser-Larsen Sea, Cosmonaut Sea and Cooperation Sea in 2022. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 764, 235 pp, https://doi.org/10.57738/BzPM_0764_2022
Coverage:
Latitude: -67.115819 * Longitude: 65.696089
Date/Time Start: 2022-02-09T15:00:48 * Date/Time End: 2022-02-09T15:00:48
Minimum DEPTH, sediment/rock: 0.320 m * Maximum DEPTH, sediment/rock: 8.090 m
Event(s):
PS128_39-1 * Latitude: -67.115819 * Longitude: 65.696089 * Date/Time: 2022-02-09T15:00:48 * Elevation: -647.2 m * O2A Registry URI: https://registry.o2a-data.de/items/3195 * Location: Indian Ocean * Campaign: PS128 (EASI-1) * Basis: Polarstern * Method/Device: Piston corer (PC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Section | Sect | Gebhardt, Andrea Catalina | |||
| 2 | Depth, sediment/rock, top/minimum | Depth sed top | m | Gebhardt, Andrea Catalina | ||
| 3 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Gebhardt, Andrea Catalina | ||
| 4 | DEPTH, sediment/rock | Depth sed | m | Gebhardt, Andrea Catalina | Geocode | |
| 5 | Binary Object | Binary | Gebhardt, Andrea Catalina | original | ||
| 6 | Binary Object | Binary | Gebhardt, Andrea Catalina | adjusted |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
45 data points