n-Alkane concentration in thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia

• Main Authors: Jongejans, Loeka Laura, Liebner, Susanne, Knoblauch, Christian, Mangelsdorf, Kai, Strauss, Jens
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Alas lake; Arctic; AWI Arctic Land Expedition; Biomarkers; Carbon in Permafrost / Kohlenstoff im Permafrost; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate; Climatic Change; and Society; Core; Depth; bottom/max; sediment/rock; top/min; Event label; Gas chromatograph-mass spectrometer; GC-MS; greenhouse gas production; KoPF; n-Alkane C16; per unit sediment mass; n-Alkane C17; n-Alkane C18; n-Alkane C19; n-Alkane C20; n-Alkane C21; n-Alkane C22; n-Alkane C23; n-Alkane C24; n-Alkane C25; n-Alkane C26; n-Alkane C27; n-Alkane C28; n-Alkane C29; permafrost; Thermokarst; Yakutia; Siberia
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.928134; https://doi.org/10.1594/PANGAEA.928134

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 the n-alkane data from sediment cores YU-L7 and YUL15. Concentrations of n-alkanes in the range n-C16 to n-C37 are given in µg/g sediment. The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS.