Greenish gray claystone in Mulberry Member, Bandera Formation
The Mulberry Member lies between the heavy dashed lines;
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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