Fig. 7: Optical and electron microscopy of Timna-L sample showing surficial layer.

Comparison of: A Optical microscope image of partially vitrified Timna-L sample. B, C SEM-BSE (backscattered electron) images of partially vitrified sample showing scale of surficial layer (denoted as “SL” in C). In B, a red arrow points from the approximate location of the elemental map shown in (C).