X-ray adsorption near edge spectroscopy (XANES) analysis of sulfur speciation in sediment samples from the Efri Haukadalsa river, Iceland

Sulfur K-edge XANES measurements of the relative proportion of reduced sulfur (i.e., S oxidation state less than or equal to zero) in select analysis spots within samples of suspended sediment, sediment deposits, and blank filters. Details on the analysis method and spectral fitting are provided in the associated manuscript.