Virtasalo, Joonas J; Schröder, Jan F; Luoma, Samrit; Majaniemi, Juha; Mursu, Juha; Scholten, Jan Christoph (2019): Loss on ignition and caesium-137 in sediments from the Hanko submarine groundwater discharge site, northern Baltic Sea, Finland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.898673, In supplement to: Virtasalo, JJ et al. (2019): Submarine groundwater discharge site in the First Salpausselkä ice-marginal formation, south Finland. Solid Earth, 10, 405-423, https://doi.org/10.5194/se-10-405-2019
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Abstract:
Sediment samples were collected using a box corer, and cut in 1-cm sub-sample slices. The Cs-137 activity content of sub-samples was measured for 60 min using a BrightSpec bMCA-USB pulse height analyser coupled to a well-type NaI(Tl) detector. The same sub-samples were then analysed for water content and weight loss on ignition (LOI) by weighing sub-samples fresh, weighing after drying at 105 °C for 16 h, and weighing again after ignition at 550 °C for 2 h.
Keyword(s):
Coverage:
Median Latitude: 59.893340 * Median Longitude: 23.232350 * South-bound Latitude: 59.891680 * West-bound Longitude: 23.228930 * North-bound Latitude: 59.895000 * East-bound Longitude: 23.235770
Date/Time Start: 2018-05-30T00:00:00 * Date/Time End: 2018-05-31T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.095 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Virtasalo, Joonas J | |||
| 2 | Identification | ID | Virtasalo, Joonas J | Pockmark | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Virtasalo, Joonas J | Geocode | |
| 4 | Depth, top/min | Depth top | m | Virtasalo, Joonas J | ||
| 5 | Depth, bottom/max | Depth bot | m | Virtasalo, Joonas J | ||
| 6 | Water content, wet mass | Water wm | % | Virtasalo, Joonas J | Calculated from weight loss after drying at 105°C | |
| 7 | Loss on ignition | LOI | % | Virtasalo, Joonas J | Calculated from weight loss after ignition at 550 °C | |
| 8 | Caesium-137, activity per mass | 137Cs | Bq/kg | Virtasalo, Joonas J | Well-type NaI(Tl) detector, BrightSpec bMCA-USB pulse height analyser | |
| 9 | Caesium-137, standard deviation | 137Cs std dev | ± | Virtasalo, Joonas J | Well-type NaI(Tl) detector, BrightSpec bMCA-USB pulse height analyser |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
105 data points