Lithic fragments (L). Lithic-sedimentary fragments (Ls)
include those of carbonate (Lc) and chert rock fragments (Lch)
and very rarely, argillaceous fragments. Lithic-igneous (Li)
and lithic-metamorphic (Lm) fragments were observed in
varying proportions throughout the sequence (Table 1). Total
lithic fragments are much more abundant in the Injana
sandstones (40–58%) than those of the Fat’ha Formation
sandstones (14–20%). Generally, the carbonate lithic fragments
are more common than other types and occur as rounded
to subrounded micrite fragments (Figs. 5 and 6). Lithic chert
fragments are mostly microcrystalline, few radiolarian chert
fragments were identified (Fig. 5, D).