(Figure 3) Sedimentological and biogeochemical analyses of outcrop PG2038-1 ...

• Main Authors: Schleusner, Philipp, Biskaborn, Boris K, Kienast, Frank, Wolter, Juliane, Subetto, Dmitry A, Diekmann, Bernhard
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: SibLake; DEPTH, sediment/rock; Stratigraphy; Carbon, total; Nitrogen, total; Sulfur, total; Carbon, organic, total; Carbon, inorganic, total; Carbonates; Carbon, organic, total/Nitrogen, total ratio; δ13C; Grain size, mean; Size fraction < 0.002 mm, clay; Silt; Sand; Sorting; Skewness; Quartz/total intensity ratio; Anorthite/total intensity ratio; Illite/total intensity ratio; Quartz/Feldspar ratio; Grab; Carbon and nitrogen and sulfur CNS isotope element analyzer, Elementar, Vario EL III; Carbon and nitrogen and sulfur CNS isotope element analyzer, Elementar, Elementar Vario MAX Cube; Calculated; Mass spectrometer Finnigan Delta-S; Beckman Coulter Laser diffraction particle size analyzer LS 200; X-ray diffraction XRD; RU-Land_2010_Lena; AWI Arctic Land Expedition; Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn; Arctic; Coulter; permafrost
• Online Access: https://dx.doi.org/10.1594/pangaea.833692; https://doi.pangaea.de/10.1594/PANGAEA.833692

X-ray diffractometry - For information about the mineral contents, the samples were ground and analysed by X-ray diffractometry (XRD) using a Panalytic Empyrean X-ray diffractometer. The mineral peak area intensities were determined graphically and calculated using Macdiff (Petschick 2012). Following Vogt (2009), the semi-quantitative mineral contents were determined by the ratio of the individual peak intensities against each other. Here we used the ratio of the quartz- and feldspar peaks, and the ratio of the illite peak against the total peak area intensities of all minerals (TI).Grain-size distribution - The samples were pretreated with acetic acid to remove the inorganic carbon. In order to destroy the organic compounds, a hydrogen peroxide treatment was conducted on a platform shaker, where ammonia was used for neutralization of the pH. The sample material was dispersed and homogenized on an overhead shaker using tetrasodium pyrophosphate. The grain-size distribution was measured using a Beckmann ...