Zhu, Qing-Zeng; Yin, Xiuran; Taubner, Heidi; Wendt, Jenny; Friedrich, Michael W; Elvert, Marcus; Hinrichs, Kai-Uwe; Middelburg, Jack J (2024): DIC concentration and isotopic composition in sedimentay 13C-labeling incubation of sediment core HE483/25-2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962952
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Abstract:
DIC measurement: an aliquot of the slurry was filtered with a 0.2-µm filter to remove cells and other particles. After filtration, 1 mL of samples were acidified with 100 μL 45% phosphoric acid overnight in an Exetainer® vial pre-purged with CO2-free air before analysis. All samples were measured with a Delta Ray Isotope Ratio Infrared Spectrometer (IRIS) with URI Connect and autosampler (Thermo Fisher Scientific, Germany) with an analytical error of ±1‰. All isotopic values are reported in the delta notation as δ13C relative to the Vienna PeeDee Belemnite (VPDB) standard. Deviations of triplicate isotopic measurement of sample DIC were between ± 1‰ and ± 1,000‰ (for DIC with label uptake of >10,000‰). DIC concentration was calculated from the released amount of CO2 by calibration with sodium hydrogen carbonate solution.
Keyword(s):
Supplement to:
Zhu, Qing-Zeng; Yin, Xiuran; Taubner, Heidi; Wendt, Jenny; Friedrich, Michael W; Elvert, Marcus; Hinrichs, Kai-Uwe; Middelburg, Jack J (in prep.): Secondary production and priming reshape the organic matter composition
in marine sediments.
Project(s):
The Ocean Floor - Earth's Uncharted Interface (ClusterOceanFloor)
Funding:
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Latitude: 54.049840 * Longitude: 7.965630
Date/Time Start: 2017-04-26T08:49:00 * Date/Time End: 2017-04-26T08:49:00
Minimum DEPTH, sediment/rock: 0.325 m * Maximum DEPTH, sediment/rock: 2.325 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Zhu, Qing-Zeng | Geocode | |
| 2 | Depth, top/min | Depth top | m | Zhu, Qing-Zeng | ||
| 3 | Depth, bottom/max | Depth bot | m | Zhu, Qing-Zeng | ||
| 4 | Sample ID | Sample ID | Zhu, Qing-Zeng | |||
| 5 | Substrate type | Substrate | Zhu, Qing-Zeng | |||
| 6 | Time in days | Time | days | Zhu, Qing-Zeng | ||
| 7 | δ13C, dissolved inorganic carbon | δ13C DIC | ‰ PDB | Zhu, Qing-Zeng | Delta Ray Isotope Ratio Infrared Spectrometer (IRIS) with URI Connect and autosampler (Thermo Fisher Scientific, Germany) | |
| 8 | Carbon, inorganic, dissolved | DIC | µmol/l | Zhu, Qing-Zeng | Delta Ray Isotope Ratio Infrared Spectrometer (IRIS) with URI Connect and autosampler (Thermo Fisher Scientific, Germany) | |
| 9 | Volume | Vol | ml | Zhu, Qing-Zeng | Incubation volumn |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
560 data points