Mineral composition of sediment core PG2208 ...

• Main Authors: Biskaborn, Boris K, Nazarova, Larisa B, Kröger, Tim, Pestryakova, Luidmila A, Syrykh, Luidmila S, Pfalz, Gregor, Herzschuh, Ulrike, Diekmann, Bernhard
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: diatoms; Lake sediment core; lake sediment proxies; Siberia; Siberian Arctic; DEPTH, sediment/rock; Intensity, total; Quartz Intensity, 3.34Å; Quartz Intensity, 4.26Å; Plagioclase Intensity, 3.19Å; Kalifeldspar Intensity, 3.24Å; Hornblende Intensity, 8.4Å; Calcite Intensity, 3.024Å; Dolomite Intensity, 2.88Å; Illite Intensity, 10Å; Illite Intensity, 5Å; Chlorite Intensity, 14Å; Chlorite Intensity, 7Å; Composite Core; X-ray diffractometry XRD PHILIPS PW1820 goniometer; RU-Land_2013_Yakutia; AWI Arctic Land Expedition; Paleo Modelling PalMod; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; Arctic
• Online Access: https://dx.doi.org/10.1594/pangaea.942078; https://doi.pangaea.de/10.1594/PANGAEA.942078

To analyze the mineralogical composition of sediments we freeze-dried and milled 19 samples for X-ray diffractometry (XRD) using a PHILIPS PW1820 goniometer (40 kV, 40 mA, from 3 to 100°, step-rate 0.05°, Co ka radiation). Data processing was performed using the free software MacDiff 4.0.7. To avoid influence of opal and organic matter in the samples (Voigt, 2009), we used the ratio of the peak area intensities of each mineral to the sum of the peak area intensities of all detected minerals, and used this value to estimate percentages. ...