TY - JOUR T1 - Focus on sulfur count rates along marine sediment cores acquired by XRF Core Scanner A1 - Cheron,Sandrine A1 - Etoubleau,Joel A1 - Bayon,Germain A1 - Garziglia,Sebastien A1 - Boissier,Audrey AD - IFREMER, Unite Geosci Marines, Ctr Brest, F-29280 Plouzane, France. UR - https://archimer.ifremer.fr/doc/00346/45731/ DO - 10.1002/xrs.2704 N2 - The aim of this study is to investigate the information provided by sulfur count rates obtained by X-ray fluorescence core scanner (XRF-CS) along sedimentary records. The analysis of two marine sediment cores from the Niger Delta margin shows that XRF-CS sulfur count rates obtained at the surface of split core sections with XRF-CS correlate with both direct quantitative pyrite concentrations, as inferred from X-ray powder diffraction (XRD) and sulfur determination by wavelength dispersive X-ray fluorescence (WD-XRF) spectrometry, and total dissolved sulfide (TDS) contents in the sediment pore water. These findings demonstrate the potential of XRF-CS for providing continuous profiles of pyrite distribution along split sections of sediment cores. The potential of XRF-CS to detect TDS pore water enrichments in marine sediment records, even a long time after sediment recovery, will be further discussed. Y1 - 2016/09 PB - Wiley-blackwell JF - X-ray Spectrometry SN - 0049-8246 VL - 45 IS - 5 SP - 288 EP - 298 ID - 45731 ER -