Figure 8a:
a) Fragment of a cereal mill, made of cemented biocalcarenite, found on the surface of the well site (scale = 6cm); b)
binocular microscope view of the cereal mill (scale bar = 1mm) c) binocular microscope view of the raw material produced by this mining activity, a cemented biocalcarenite (scale bar = 2mm) d) microscopic view of a thin-section, doubly polarized light, of the same rock (scale bar = 1mm)