Characterization of fossil remains using XRF, XPS and XAFS spectroscopies

16th International Conference on X-ray Absorption Fine Structure

Zougrou, I.M.^1 ; Katsikini, M.^1 ; Pinakidou, F.^1 ; Brzhezinskaya, M.^2 ; Papadopoulou, L.^3 ; Vlachos, E.^3 ; Tsoukala, E.^3 ; Paloura, E.C.^1

School of Physics, Aristotle University of Thessaloniki, Thessaloniki

54124, Greece^1

Main Department Scientific-Technical Infrastructure II, Helmholtz Zentrum Berlin, Berlin

12489, Germany^2

School of Geology, Aristotle University of Thessaloniki, Thessaloniki

54124, Greece^3

关键词: Micro X-ray fluorescence;    X-ray photoelectrons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/712/1/012090/pdf
DOI  :  10.1088/1742-6596/712/1/012090

来源: IOP

【 摘 要 】

Synchrotron radiation micro-X-Ray Fluorescence (μ-XRF), X-ray photoelectron (XPS) and X-ray Absorption Fine Structure (XAFS) spectroscopies are applied for the study of paleontological findings. More specifically the costal plate of a gigantic terrestrial turtle Titanochelon bacharidisi and a fossilized coprolite of the cave spotted hyena Crocuta crocuta spelaea are studied. Ca L2,3-edge NEXAFS and Ca 2p XPS are applied for the identification and quantification of apatite and Ca containing minerals. XRF mapping and XAFS are employed for the study of the spatial distribution and speciation of the minerals related to the deposition environment.