Branched glyerol diakyl glyerol tetraether (brGDGT) 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: Arctic; biomarkers; Central Yakutia; greenhouse gas production; talik; thawed permafrost; thermokarst lake; Yedoma deposits; Event label; Core; Sample ID; Depth, top/min; Depth, bottom/max; DEPTH, sediment/rock; Branched glycerol dialkyl glycerol tetraether, Ia, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, Ib, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIa, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIb, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIIa, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIIb, per unit sediment mass; Truck mounted rotary drill; Liquid chromatography-mass spectrometry LC-MS; RU-Land_2015_CentralYakutia_Yuke; AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost KoPF; Cluster of Excellence Climate, Climatic Change, and Society CLICCS; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool PETA-CARB; Talik; Peta; permafrost; Thermokarst; Yakutia; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.928135; https://doi.pangaea.de/10.1594/PANGAEA.928135

This dataset describs 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 branched glyerol diakyl glyerol tetraether (brGDGT) concentrations from sediment cores YUL7 and YU-L15 which are given in µg/g sediment.The branched glycerol dialkyl glycerol tetraethers 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. ...