Labuhn, Inga; Tell, Franziska; von Grafenstein, Ulrich; Hammarlund, Dan; Kuhnert, Henning; Minster, Bénédicte (2022): Stable isotopes in recent biogenic carbonates from Lake Locknesjön, Sweden collected in 2018 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942627
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Abstract:
This dataset presents measurements of stable isotopes in biogenic carbonates (δ13C and δ18O) from Lake Locknesjön, Sweden. Carbonate samples were collected in 2018 from different lacustrine organisms along a water depth gradient from 0 to 8 m depth: encrustations from the calcifying algae Chara hispida, valves from the bivalve mollusk Pisidium sp., and valves from two species of ostracods, Candona candida and Candona neglecta. Adult specimen and different juvenile stages of the ostracods were sampled. The carbonate samples originate from living organisms, i.e. which were alive at the time of sampling in 2018, and from their subfossil remains in the uppermost centimeter of the lake sediments. The carbonate samples were collected by a diving team. Carbonate isotope measurements were carried out at MARUM, Bremen, Germany, using a ThermoFisher Scientific 253plusgas isotope ratio mass spectrometer with a Kiel IV automated carbonate preparation device. The standard deviation of the reference standards over the measurement period was 0.06‰ for δ18O and 0.03‰ for δ13C.
Keyword(s):
Related to:
Labuhn, Inga; Tell, Franziska; von Grafenstein, Ulrich; Hammarlund, Dan; Kuhnert, Henning; Minster, Bénédicte (2022): A modern snapshot of the isotopic composition of lacustrine biogenic carbonates – records of seasonal water temperature variability. Biogeosciences Discussions, 19, 2759–2777, https://doi.org/10.5194/bg-19-2759-2022
Funding:
University of Bremen (Uni Bremen), grant/award no. 2018/ZF08/FB8/Labuhn: The Central Research Development Fund (CRDF)
Coverage:
Median Latitude: 62.989167 * Median Longitude: 14.806982 * South-bound Latitude: 62.977708 * West-bound Longitude: 14.649752 * North-bound Latitude: 62.992528 * East-bound Longitude: 14.834431
Date/Time Start: 2018-07-24T00:00:00 * Date/Time End: 2018-07-25T00:00:00
Minimum Elevation: 328.0 m * Maximum Elevation: 328.0 m
Event(s):
UvG2001 * Latitude: 62.988967 * Longitude: 14.816267 * Date/Time: 2018-07-24T00:00:00 * Elevation: 328.0 m * Lake water depth: 1 meter * Location: Lake Locknesjön, Sweden * Method/Device: Sampling by diver (DIVER)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Labuhn, Inga | |||
| 2 | Latitude of event | Latitude | Labuhn, Inga | |||
| 3 | Longitude of event | Longitude | Labuhn, Inga | |||
| 4 | Date/Time of event | Date/Time | Labuhn, Inga | |||
| 5 | Elevation of event | Elevation | m | Labuhn, Inga | ||
| 6 | Location of event | Location | Labuhn, Inga | |||
| 7 | Species | Species | Labuhn, Inga | Indicates the ostracod or Chara species. Pisidium were only identified at the genus level | ||
| 8 | Sample type | Samp type | Labuhn, Inga | For ostracods: indicates whether the sample was from an adult (""Adult"") or juvenile specimen. Juvenile stages are named A-1, A-2, A-3 and A-4 | ||
| 9 | Origin | Origin | Labuhn, Inga | Indicates whether the cabonate samples originates from an organism which was alive at the time of sampling (""living"") or was a subfossil sample from surface sediments (""subfossil"") | ||
| 10 | Sample number | Sample no | Labuhn, Inga | Gives the number of valves (for ostracods and Pisidium) or stalks (for Chara enrcustations) which were used for the stable isotope measurement | ||
| 11 | δ13C, carbonate | δ13C carb | ‰ PDB | Labuhn, Inga | Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device | relative to V-PDB |
| 12 | δ18O, carbonate | δ18O carb | ‰ PDB | Labuhn, Inga | Mass spectrometer ThermoFisher Scientific 253plus gas coupled to a KIEL IV carbonate preparation device | relative to V-PDB |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1409 data points