Muir, Hannah C; Evans, Claire; Reading, David G; Warwick, Phillip E (2025): Gamma emitting radionuclides in sediment cores from the Western Irish Sea Mud Belt, June 2022 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983361, In: Muir, Hannah C; Reading, David G; Warwick, Phillip E; Peel, Kate; Evans, Claire (2025): Sediment core data (organic carbon, dry bulk density, grain size, radionuclide) from the Western Irish Sea Mud Belt June 2022 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.983345
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-07-10 • DOI registered: 2025-08-08
Abstract:
Radionuclide analysis was carried out on freeze-dried sediments sampled at 1 cm resolution from the top 40 cm of 7 sediment cores (Sites 4, 8, 14, 15, 20, 21, 27). Samples were analysed for a few sediment depths to resolve the overall activity profile, then additional samples were analysed to resolve activity peaks. Not all samples were analysed for each 40 cm core section. Sediments were measured for 210Pb, 137Cs, and 241Am using Mirion (Canberra) Canberra High Purity Germanium (HPGe) well-type gamma spectrometers (GAU-Radioanalytical, University of Southampton) under their accreditation to ISO/IEC17025. Data acquisition was performed using Genie-2000 (Mirion Canberra) and spectral analysis was performed using Fitzpeaks 32 deconvolution software. The HPGe detectors were efficiency calibrated using a certified, mixed gamma radionuclide standard (National Physical Laboratory, UK) which was homogenised into a near-identical sample matrix to that of the test sample. Samples were counted for 8 hours to achieve low limits of detection.
Related to:
Muir, Hannah C; et al. (preprint): Organic Carbon Burial Rates in Muddy Temperate Shelf Sea Sediments. Earth and Space Science Open Archive (ESSOAr), https://doi.org/10.22541/essoar.174293123.38519064/v1
Project(s):
Manx Blue Carbon Project (Manx_Blue_Carbon_Project)
Coverage:
Median Latitude: 54.132414 * Median Longitude: -5.047229 * South-bound Latitude: 53.937700 * West-bound Longitude: -5.146500 * North-bound Latitude: 54.283000 * East-bound Longitude: -4.880800
Date/Time Start: 2022-06-14T17:30:00 * Date/Time End: 2022-06-16T12:55:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.750 m
Event(s):
WISMB_4 (Site 4) * Latitude: 54.262600 * Longitude: -5.029000 * Date/Time: 2022-06-14T17:30:00 * Elevation: -122.0 m * Recovery: 95 cm * Location: Western Irish Sea Mud Belt * Campaign: Manx_Blue_Carbon * Basis: Barrule * Method/Device: Gravity corer, UWITEC (GCUWI)
WISMB_8 (Site 8) * Latitude: 54.103500 * Longitude: -5.146500 * Date/Time: 2022-06-15T13:40:00 * Elevation: -114.0 m * Recovery: 105 cm * Location: Western Irish Sea Mud Belt * Campaign: Manx_Blue_Carbon * Basis: Barrule * Method/Device: Gravity corer, UWITEC (GCUWI)
WISMB_14 (Site 14) * Latitude: 54.205600 * Longitude: -4.999600 * Date/Time: 2022-06-15T10:20:00 * Elevation: -98.0 m * Recovery: 85 cm * Location: Western Irish Sea Mud Belt * Campaign: Manx_Blue_Carbon * Basis: Barrule * Method/Device: Gravity corer, UWITEC (GCUWI)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Muir, Hannah C | |||
| 2 | Latitude of event | Latitude | Muir, Hannah C | |||
| 3 | Longitude of event | Longitude | Muir, Hannah C | |||
| 4 | Site | Site | Muir, Hannah C | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Muir, Hannah C | Geocode | |
| 6 | Caesium-137 | 137Cs | Bq/kg | Muir, Hannah C | High-purity Germanium (HPGe) detector | |
| 7 | Caesium-137, error | 137Cs e | ± | Muir, Hannah C | High-purity Germanium (HPGe) detector | |
| 8 | Americium-241 | 241Am | Bq/kg | Muir, Hannah C | High-purity Germanium (HPGe) detector | |
| 9 | Americium-241, error | 241Am e | ± | Muir, Hannah C | High-purity Germanium (HPGe) detector | |
| 10 | Lead-210 | 210Pb | Bq/kg | Muir, Hannah C | High-purity Germanium (HPGe) detector | |
| 11 | Lead-210, error | 210Pb e | ± | Muir, Hannah C | High-purity Germanium (HPGe) detector |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1223 data points