Gamboa, Adriana; Montero-Serrano, Jean-Carlos; St-Onge, Guillaume; Rochon, André; Desiage, Pierre-Arnaud (2016): Mineralogy of surface sediment from the Canadian Beaufort Shelf and Amundsen Gulf (Canadian Arctic) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.866869, In supplement to: Gamboa, A et al. (2017): Mineralogical, geochemical and magnetic signatures of surface sediments from the Canadian Beaufort Shelf and Amundsen Gulf (Canadian Arctic). Geochemistry, Geophysics, Geosystems, 18(2), 488-512, https://doi.org/10.1002/2016GC006477
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Coverage:
Median Latitude: 70.796529 * Median Longitude: -129.471412 * South-bound Latitude: 69.488000 * West-bound Longitude: -138.597000 * North-bound Latitude: 71.907000 * East-bound Longitude: -122.630000
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
2004-804-106 (106) * Latitude: 70.600000 * Longitude: -122.630000 * Elevation: -122.0 m * Location: Northwestern Passages * Method/Device: Box corer (BC)
2004-804-109 (109) * Latitude: 70.660000 * Longitude: -123.430000 * Elevation: -569.0 m * Location: Northwestern Passages * Method/Device: Box corer (BC)
2004-804-115 (115) * Latitude: 70.849000 * Longitude: -125.050000 * Elevation: -352.0 m * Location: Northwestern Passages * Method/Device: Box corer (BC)
Comment:
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).
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
442 data points