Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2022
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.941155 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867170112535003136 |
|---|---|
| author | Jongejans, Loeka Laura Liebner, Susanne Knoblauch, Christian Mangelsdorf, Kai Strauss, Jens |
| author_facet | Jongejans, Loeka Laura Liebner, Susanne Knoblauch, Christian Mangelsdorf, Kai Strauss, Jens |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents biogeochemical and biomarker parameters of sediment cores YU-L7 and YU-L15. Biogeochemical analyses include total carbon (TC) content, total organic carbon (TOC) content, total nitrogen (TN) content. Biomarker parameters include the n-alkane concentration, average chain length (ACL), carbon preference index (CPI), brGDGT concentration, archaeol concentration and the isoGDGT-0 concentration. The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS. The branched and isoprenoid glycerol dialkyl glycerol tetraethers, as well as the dialkyl glycerol diether lipid (archaeol) were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface. The pH soil is the sediment pH which was assessed by adding 6.12 mL of 0.01 M CaCl~2~ to ~2.5 g dried sediment and measuring with a Multilab 540 (WTW) at 20°C. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_941155 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Biogeochemical parameters of thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia, version 2 Jongejans, Loeka Laura Liebner, Susanne Knoblauch, Christian Mangelsdorf, Kai Strauss, Jens Alas lake; Archaeol, per unit sediment mass; Arctic; AWI Arctic Land Expedition; Biomarkers; Calculated; Carbon, organic, total; Carbon, total; Carbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAX; Carbon in Permafrost / Kohlenstoff im Permafrost; Carbon Preference Index, n-Alkanes; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Element analyser (calculated by TC-TIC); Event label; Gas chromatograph-mass spectrometer; GC-MS; greenhouse gas production; Isoprenoid acyclic glycerol dialkyl glycerol tetraether, per unit sediment mass; KoPF; Liquid chromatography-mass spectrometry (LC-MS); n-Alkanes, average chain length; n-alkanes, total, per unit sediment mass; Nitrogen, total; PETA-CARB; pH, porewater; pH, soil; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; Sample ID; Sum branched glycerol dialkyl glycerol tetraether, per unit sediment mass; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; WTW MultiLab 540; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7 This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents biogeochemical and biomarker parameters of sediment cores YU-L7 and YU-L15. Biogeochemical analyses include total carbon (TC) content, total organic carbon (TOC) content, total nitrogen (TN) content. Biomarker parameters include the n-alkane concentration, average chain length (ACL), carbon preference index (CPI), brGDGT concentration, archaeol concentration and the isoGDGT-0 concentration. The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS. The branched and isoprenoid glycerol dialkyl glycerol tetraethers, as well as the dialkyl glycerol diether lipid (archaeol) were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface. The pH soil is the sediment pH which was assessed by adding 6.12 mL of 0.01 M CaCl~2~ to ~2.5 g dried sediment and measuring with a Multilab 540 (WTW) at 20°C. |
| title | Biogeochemical parameters of thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia, version 2 |
| topic | Alas lake; Archaeol, per unit sediment mass; Arctic; AWI Arctic Land Expedition; Biomarkers; Calculated; Carbon, organic, total; Carbon, total; Carbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAX; Carbon in Permafrost / Kohlenstoff im Permafrost; Carbon Preference Index, n-Alkanes; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Element analyser (calculated by TC-TIC); Event label; Gas chromatograph-mass spectrometer; GC-MS; greenhouse gas production; Isoprenoid acyclic glycerol dialkyl glycerol tetraether, per unit sediment mass; KoPF; Liquid chromatography-mass spectrometry (LC-MS); n-Alkanes, average chain length; n-alkanes, total, per unit sediment mass; Nitrogen, total; PETA-CARB; pH, porewater; pH, soil; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; Sample ID; Sum branched glycerol dialkyl glycerol tetraether, per unit sediment mass; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; WTW MultiLab 540; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7 |
| url | https://doi.org/10.1594/PANGAEA.941155 |