Seemann, Fabian; Jenrich, Maren; Lindemann, Justin; Weiner, Mikaela; Hefter, Jens; Meyer, Hanno; Grosse, Guido; Jones, Benjamin; Strauss, Jens (2025): n-Alkane biomarker, carbon, nitrogen and d13C data from the Barrow Peninsula (northern Alaska) before and after a one-year long incubation experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.982646 (DOI registration in progress)
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Published: 2025-06-11
Abstract:
We conducted a one-year long incubation experiment with sediment samples from the Barrow Peninsula (Utqiagvik, Alaska). In 2022 sediments were cored in two thermokarst lakes (East and West Twin Lake), one drained lake basin and an undisturbed upland. Additionally, sediment samples were taken from Elson Lagoon and a semi-open lagoon. On in total 20 chosen depths of all cores, n-alkane biomarker analyses were conducted. Parallelly, carbon, nitrogen and carbon isotopic analyses were carried out. Subsequently, ten lacustrine and terrestrial samples were incubated for one year under aerobic and dark conditions at 10°C. At the end of the experiment, the initial analyses were repeated. The biomarker and elemental analyses were conducted at the Permafrost Research Section (AWI Potsdam) and the isotope data has been generated in the ISOLAB Facility (AWI Potsdam).
Keyword(s):
Related to:
Seemann, Fabian; Jenrich, Maren; Lindemann, Justin; Eulenburg, Antje; Weiner, Mikaela; Mollenhauer, Gesine; Meyer, Hanno; Overduin, Pier Paul; Grosse, Guido; Jones, Benjamin; Strauss, Jens (2025): Sediment and pore water investigations in thermokarst terrain near Utqiagvik, Alaska [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974136 (Reference data sheet)
Additional metadata:
SENSOR: Metadata for mass spectrometer ThermoFisher Scientific Delta-V-Advantage at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.1df540c8-1409-43bf-a237-9af0cd871fca
Further details:
SENSOR: Metadata for laboratory ISOLAB Facility - Stable Isotope Laboratory Potsdam at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.ddc92f54-4c63-492d-81c7-696260694001
Project(s):
Permafrost Research (AWI_Perma)
Funding:
Coverage:
Median Latitude: 71.276018 * Median Longitude: -156.458843 * South-bound Latitude: 71.263200 * West-bound Longitude: -156.496990 * North-bound Latitude: 71.290080 * East-bound Longitude: -156.423550
Date/Time Start: 2022-04-19T00:00:00 * Date/Time End: 2022-04-22T00:00:00
Minimum DEPTH, sediment/rock: 2.0 m * Maximum DEPTH, sediment/rock: 186.0 m
Event(s):
AK-Land_2022_NorthSlope_BRW22_DLB_001 * Latitude: 71.277200 * Longitude: -156.443110 * Date/Time: 2022-04-22T00:00:00 * Recovery: 1.42 m * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: SIPRE corer (SIPREC) * Comment: SIPRE corer (7.5 cm diameter)
AK-Land_2022_NorthSlope_BRW22_EL_001 * Latitude: 71.290080 * Longitude: -156.472000 * Date/Time: 2022-04-21T00:00:00 * Recovery: 2.26 m * Location: Alaskan North Slope * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Vibra-corer * Comment: Vibra corer (7.5 cm diameter)
AK-Land_2022_NorthSlope_BRW22_ETL_001 * Latitude: 71.275300 * Longitude: -156.464450 * Date/Time: 2022-04-20T00:00:00 * Recovery: 1.38 m * Location: Alaskan North Slope * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Vibra-corer * Comment: Vibra corer (7.5 cm diameter; 118 cm compressed)
Comment:
F.S. and M.J. received funding from the German Federal Environmental Foundation (Deutsche Bundesstiftung Umwelt).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Seemann, Fabian | |||
| 2 | Sample code/label | Sample label | Seemann, Fabian | Core name | ||
| 3 | Position | Position | Seemann, Fabian | Sample position | ||
| 4 | Status | Status | Seemann, Fabian | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Seemann, Fabian | Geocode – mean sample depth | |
| 6 | Depth, sediment/rock, top/minimum | Depth sed top | m | Seemann, Fabian | layer top | |
| 7 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Seemann, Fabian | layer bottom | |
| 8 | Carbon, total | TC | % | Seemann, Fabian | Carbon Analyzer, Elementar, soli TOC cube | |
| 9 | Carbon, organic, total | TOC | % | Seemann, Fabian | Carbon Analyzer, Elementar, soli TOC cube | |
| 10 | Nitrogen, total | TN | % | Seemann, Fabian | Nitrogen Analyzer, Elementar, rapid MAX N exceed | |
| 11 | Carbon/Nitrogen ratio | C/N | Seemann, Fabian | |||
| 12 | δ13C, organic carbon | δ13C Corg | ‰ PDB | Seemann, Fabian | Mass specrometer, ThermoFischer, Delta-V | ISOLAB Potsdam - SENSOR; see references |
| 13 | n-Eicosane, per unit sediment mass | C20/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 14 | n-Eicosane, per unit mass total organic carbon | C20/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 15 | 5alpha-androstane, per unit sediment mass | 5a-Androstane/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 16 | 5alpha-androstane, per unit mass total organic carbon | 5a-Androstane/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 17 | n-Heneicosane, per unit sediment mass | C21/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 18 | n-Heneicosane, per unit mass total organic carbon | C21/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 19 | n-Docosane, per unit sediment mass | C22/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 20 | n-Docosane, per unit mass total organic carbon | C22/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 21 | n-Tricosane, per unit sediment mass | C23/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 22 | n-Tricosane, per unit mass total organic carbon | C23/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 23 | n-Tetracosane, per unit sediment mass | C24/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 24 | n-Tetracosane, per unit mass total organic carbon | C24/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 25 | n-Pentacosane, per unit sediment mass | C25/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 26 | n-Pentacosane, per unit mass total organic carbon | C25/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 27 | n-Hexacosane, per unit sediment mass | C26/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 28 | n-Hexacosane, per unit mass total organic carbon | C26/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 29 | n-Heptacosane, per unit sediment mass | C27/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 30 | n-Heptacosane, per unit mass total organic carbon | C27/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 31 | n-Octacosane, per unit sediment mass | C28/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 32 | n-Octacosane, per unit mass total organic carbon | C28/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 33 | n-Nonacosane, per unit sediment mass | C29/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 34 | n-Alkane C29, per unit mass total organic carbon | C29/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 35 | n-Triacontane, per unit sediment mass | C30/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 36 | n-Triacontane, per unit mass total organic carbon | C30/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 37 | n-Hentriacontane, per unit sediment mass | C31/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 38 | n-Hentriacontane, per unit mass total organic carbon | C31/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 39 | n-Dotriacontane, per unit sediment mass | C32/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 40 | n-Dotriacontane, per unit mass total organic carbon | C32/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 41 | n-Tritriacontane, per unit sediment mass | C33/sed | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 42 | n-Tricontane, per unit mass total organic carbon | C33/TOC | µg/g | Seemann, Fabian | Gas chromatography mass spectrometry (GC-MS), Thermo Fisher Scientific, Gas Chromatograph, TRACE 1310; coupled with Single Quadrupole Mass Spectrometer, ISQ 7000 | |
| 43 | Average chain length, n-Alkanes, C23-C33 | ACL 23-33 | Seemann, Fabian | (δi23-33*Ci23-33)/(δCi23-33) | ||
| 44 | Carbon Preference Index, n-Alkanes (C23-C33) | CPI 23-33 | Seemann, Fabian | (δodd nC23-nC31)+(δodd nC25-nC33)/2*(δeven nC24-32) | ||
| 45 | Odd-over-even predominance, sum odd numbered/sum even numbered n-alkanes ratio | OEP n-alk | Seemann, Fabian | (nC27+nC29+nC31+nC33)/(nC26+nC28+nC30+nC32) | ||
| 46 | Aquatic n-alkane proxy (C23+C33)/(C23+C25+C29+C31) | Paq | Seemann, Fabian | |||
| 47 | Index of waxy n-alkanes to total hydrocarbons (C27+C29+C31)/(C23+C25+C29+C31) | Pwax | Seemann, Fabian | |||
| 48 | n-Alkanes, (C31+C33)/(C27+C31+C33) ratio | (C31+C33)/(C27+C31+C33) | Seemann, Fabian | |||
| 49 | Comment | Comment | Seemann, Fabian |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1379 data points