Mineralogy of surface sediment from the Canadian Beaufort Shelf and Amundsen Gulf (Canadian Arctic) ...

• Main Authors: Gamboa, Adriana, Montero-Serrano, Jean-Carlos, St-Onge, Guillaume, Rochon, André, Desiage, Pierre-Arnaud
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Event label; Station label; Latitude of event; Longitude of event; Elevation of event; DEPTH, sediment/rock; Zone; Difference; Goodness of fit; Quartz; Kalifeldspar; Plagioclase; Calcite; Dolomite; Pyroxene; Magnetite; Iron oxide; Phyllosilicate; Box corer; X-ray diffraction XRD; Amundsen Gulf
• Online Access: https://dx.doi.org/10.1594/pangaea.866869; https://doi.pangaea.de/10.1594/PANGAEA.866869

For the semi-quantification of the major mineralogical components, bulk sediment XRD scans were processed in the software package X'Pert High-Score Plus (PANalytical) using the Rietveld full-pattern fitting method. This method permits the semi-quantification of whole-sediment mineralogy with a precision of 5-10% for phyllosilicates and 5% for non-phyllosilicates minerals. The quality of the Rietveld fitting procedure was evaluated for the R-profile and goodness-of-fit (GOF). The R-profile quantifies the difference between the observed and calculated patterns, whereas the GOF is the ratio between the R-weighted profile (RWP; best least-squares fit between observed and calculated patterns) and R-expected theoretical (Rexp; best possible value for the residual). ...