Fig. 9

Plot Mg/Ca of the red and pinkish-beige tesserae analysed in situ (raw net counts). a Dolomite. b Ironstone. c Limestone. d Dolomitic limestone. e Glass tesserae

Plot Mg/Ca of the red and pinkish-beige tesserae analysed in situ (raw net counts). a Dolomite. b Ironstone. c Limestone. d Dolomitic limestone. e Glass tesserae