Safaierad, Reza; Vogt, Christoph (2023): Mineralogical analysis by X-Ray diffraction of Hashilan Wetland sediment core, western Iran [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956282, In: Safaierad, Reza; Zolitschka, Bernd; Djamali, Morteza; Dupont, Lydie M; Vogt, Christoph; Matthews, Roger (2023): Pollen, grain size, loss-on-ignition, elemental and mineralogical composition, magnetic susceptibility and radiocarbon measurements in Hashilan Wetland sediment core [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.956292
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Published: 2023-06-30 • DOI registered: 2023-06-30
Abstract:
For mineralogical analysis by X-Ray Diffraction (XRD), samples of ~ 1 gram were dried at 50 °C for 48 hours. The dried samples were ground and homogenized using mortar and pestle. XRD analyses were carried out at the Crystallography and Geomaterials Group, Dept. of Geosciences, University of Bremen. The X-ray diffractograms have been measured on a Philips X'Pert Pro multipurpose diffractometer equipped with a Cu-tube (kα 1.541, 45 kV, 40 mA), a fixed divergence slit of ¼°, a 16 samples changer, a secondary Ni-Filter, and the X'Celerator detector system. Measurements were performed as a continuous scan from 3–65° 2θ, with a calculated step size of 0.016° 2θ (calculated time per step was 100 s). Minerals were identified with the Philips/Panalytical software X'Pert HighScore™, which can also give a semi-quantitative value for each identified mineral on the basis of Relative Intensity Ratio (R.I.R)-values. The R.I.R.-values are calculated as the ratio between the intensity of the most intense reflex of a specific mineral phase and the intensity of the most intense reflex of pure corundum (I/Ic) referring to as the "matrix-flushing method" after Chung (1974).
References:
Chung, F H (1974): Quantitative interpretation of X-ray diffraction patterns of mixtures. I. Matrix-flushing method for quantitative multicomponent analysis. Journal of Applied Crystallography, 7(6), 519-525, https://doi.org/10.1107/S0021889874010375
Coverage:
Latitude: 34.581940 * Longitude: 46.886940
Date/Time Start: 2016-11-10T00:00:00 * Date/Time End: 2016-11-10T00:00:00
Minimum DEPTH, sediment/rock: 1.09 m * Maximum DEPTH, sediment/rock: 3.91 m
Event(s):
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
176 data points