Fig. 8From: Major to trace element imaging and analysis of iron age glasses using stage scanning in the analytical dual beam microscope (tandem)Stage scan µXRF images, extracted spectra, and deconvolved spectral features of major, minor, and trace elements. A Ba (red), Si (blue), and Ti (green) X-ray image overlay. Small white arrows depict dark melt coating the specimen exterior, and larger black arrows highlight Ba- and Ti–rich regions of clear and dark glasses respectively. B Si (blue) and Zr (yellow) X-ray image overlay showing Zr hotspots. C Si (green), Zn (red), and Rb (blue) X-ray image overlay where black arrow highlights a diffraction artifact (see Fig. 9). D image of the sum of all X-rays with energies between 1 and 18 keV. E extracted spectra from Ti–rich and Ba-rich regions highlighted in A. F Deconvolved trace Ba signal in the presence of significantly greater Ti counts. G Deconvolved peaks for trace elements with high energy X-ray linesBack to article page