Muir, Hannah C; Evans, Claire; Reading, David G; Warwick, Phillip E (2025): Alpha emitting radionuclides in sediment cores from the Western Irish Sea Mud Belt, June 2022 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983360, 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 3 sediment cores (Sites 4, 8, 20). Samples were analysed to resolve activity peaks identified by gamma spectrometry. Not all samples were analysed for each 40 cm core section. To prepare samples for alpha spectrometry, an aliquot of sample was spiked with 209Po as a chemical yield monitor and then digested using aqua regia. A clean silver disc was then placed in the resultant digest for 210Po autodeposition. Alpha spectrometry (Ortec Octete) was conducted to measure the radionuclide 210Po. Data acquisition was performed using Genie-2000 (Mirion Canberra) and spectral analysis was performed using Fitzpeaks 32 deconvolution software. 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: 54.110933 * Median Longitude: -5.105267 * South-bound Latitude: 53.966700 * West-bound Longitude: -5.146500 * North-bound Latitude: 54.262600 * East-bound Longitude: -5.029000
Date/Time Start: 2022-06-14T17:30:00 * Date/Time End: 2022-06-16T11:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.395 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_20 (Site 20) * Latitude: 53.966700 * Longitude: -5.140300 * Date/Time: 2022-06-16T11:00:00 * Elevation: -65.0 m * Recovery: 97 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 | Polonium-210 | 210Po | Bq/kg | Muir, Hannah C | ||
| 7 | Polonium-210, error | 210Po e | ± | Muir, Hannah C |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
132 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Site | 5 Depth sed [m] | 6 210Po [Bq/kg] | 7 210Po e [±] |
|---|---|---|---|---|---|---|
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.005 | 90.7277 | 12.1008 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.015 | 91.6948 | 11.6717 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.025 | 86.0561 | 11.0204 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.035 | 91.2307 | 11.7943 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.045 | 89.2879 | 12.0194 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.055 | 83.6603 | 10.7113 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.065 | 89.1133 | 11.3914 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.075 | 72.0702 | 9.1575 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.085 | 67.6699 | 8.9071 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.095 | 51.8175 | 7.9303 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.105 | 62.5489 | 10.1304 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.115 | 59.1111 | 8.1652 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.125 | 49.6914 | 7.4846 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.145 | 41.2758 | 6.2365 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.165 | 29.1481 | 4.8775 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.185 | 27.1534 | 4.0595 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.205 | 29.7413 | 5.2099 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.225 | 17.1864 | 2.7852 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.245 | 26.2747 | 4.3518 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.265 | 23.6952 | 3.6723 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.285 | 23.2054 | 3.5455 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.305 | 22.3827 | 3.3330 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.325 | 25.0541 | 4.1103 |
| WISMB_20 | 53.9667 | -5.1403 | Site 20 | 0.345 | 23.7950 | 3.7553 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.005 | 194.0200 | 28.0406 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.025 | 198.4671 | 28.6714 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.055 | 183.5044 | 28.8973 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.075 | 155.2972 | 22.2528 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.125 | 133.6172 | 17.4909 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.165 | 99.5802 | 14.3914 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.205 | 63.6084 | 9.8241 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.245 | 59.9974 | 10.6868 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.325 | 33.3324 | 6.7636 |
| WISMB_4 | 54.2626 | -5.0290 | Site 4 | 0.395 | 30.1333 | 6.8832 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.005 | 176.9869 | 24.7091 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.025 | 168.6295 | 23.7137 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.055 | 166.5238 | 24.8729 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.075 | 165.3241 | 24.4840 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.125 | 131.1411 | 18.1176 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.165 | 86.1227 | 12.8647 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.205 | 50.7864 | 8.6325 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.245 | 37.9756 | 6.0877 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.325 | 31.0807 | 6.2998 |
| WISMB_8 | 54.1035 | -5.1465 | Site 8 | 0.395 | 38.3504 | 6.6697 |