Alkane, fatty acid, total (organic) carbon and nitrogen distribution in ancient permafrost deposits at the Batagay Megaslump, East Siberia

• Main Authors: Jongejans, Loeka Laura, Mangelsdorf, Kai, Karger, Cornelia, Strauss, Jens
• Format: Other/Unknown Material
• Language: English
• Published: PANGAEA 2022
• Subjects: alkanes; Arctic Siberia; AWI_Paleo; Biomarkers; carbon mobilization; fatty acids; frozen ground; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; thaw slump; Ice; permafrost; The Cryosphere; Thermokarst; Siberia
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.950124; https://doi.org/10.1594/PANGAEA.950124

These datasets describe sediment samples taken from the Batagay megaslump, located in Yana Uplands in northeastern Siberia. Most sediment samples were taken from the slump headwall (B19-P1) by rapelling down on a rope from the slump surface and taking samples with a hole saw (diameter 55 mm, 40 mm deep) mounted on a handheld power drill. A second profile (B19-02) of the lowest part of the slump headwall was sampled (~100 m south) using a hammer and axe from the slump floor. Two permafrost sediment blocks (B19-03 and B19-04) at the slump bottom that had fallen from the headwall were sampled using a chainsaw. Finally, a baidzherakh (thermokarst mound; B19-05) in the north of the slump was sampled using a hammer and axe. The samples cover 5 stratigraphical units: 1. lower ice complex, 2. lower sand unit, 3. woody layer, 4. upper ice complex, 5. Holocene cover.