On the QmFLt plot the sandstones fall within the
quartzose recycled provenance field (Fig. 2b). Barail sandstones
(Qm79F6Lt15) plot near the craton interior field, whereas upper
Surma Bokabil sandstones (Qm64F14Lt22) have slightly lower Qm
contents. On the QmPK plot (Fig. 2c), monocrystalline quartz is
abundant relative to feldspar, and feldspar content increases up
sequence, from the Barail Group and within the Surma Group.
Sedimentary lithic fragments are abundant in the Barail Group
(Lm39Lv1Ls60) but metamorphic lithic fragments increase a little in
the Surma Group (Lm48Lv0Ls52). Both groups plot well within the
suture belt provenancefield (Fig. 2d)