Greenish gray claystone in Mulberry Member, Bandera Formation

The Mulberry Member lies between the heavy dashed lines; there
is no coal at this spot. The lower zone containing limestone (ls)
and claystone (cl) clasts is overlain by fossiliferous and calcareous
greenish gray claystone (the light dashed line marks the contact; ggc
at far right is a patch of greenish gray claystone separated from the
main part by a possible scour filled by algal limestone). The algal
limestone is lenticular and does not extend across the entire outcrop.
It seems to be in a similar stratigraphic position as the Farlington
Limestone Bed of the western outcrop belt, but no evidence exists to
make a definite correlation. The algal limestone is at the base of the
conglomerate and limestone unit.

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