CHAP. 9.] KADAPAH FORMATION.—PAUPUGNEE BEDS. 157 
The accompanying figure is taken from part of the low scarp at this point and 
shows how the lowest of the quartzites has been altered to some extent with the 
gneiss. The underlying rock (G) is a distinctly foliated variety of quartzose gneiss, 
foliation north by west, south by east, with a dip of 60°—70° east; and it is over- 
laid by quartzite grits and sands (S. S.) which are dipping 5? east. ` The upper part 
of G is conglomeratic, but this is only the bottom or coarse gravelly layer with 
patches of sand and grit (S!). . The most peculiar feature is, that the lowest beds of 
the quartzites are stringed, east-west, with white quartz; which strings also penetrate 
the upper surface of the underlying rock. 
Up to this point, the Goolcheroos have been lying on the gneiss in easy 
Signs of dislocation Undulations pretty much like what would have been 
ne the case if the bed of the old Kuddapah sea had, to- 
wards its western shore, been not very roughly denuded ground with humpy 
hillocks, bosses or domes of granitic rocks, rendered, however, more rugged 
and ridey in places by those very ridges, now much more sharply denuded 
than they were then, which are held up by the dykes of fault-rock. 
At and northwards of the Paipully country there are, however, indications 
of dislocation and contortion which show at intervals up to Kurnool. 
East-south-east of Paipully, in the deep and narrow gorge west by south of 
Chellumpully, the quartzite beds are much contorted, and in one case there is a 
reversed dip. They thicken very much in this gorge, and there was evidently some 
faulting along north-north-west to south-south-east, and éast-north-east, west-south-west 
lines, though apparently of not more than 50—60 feet. Along the north-north-west 
line a patch of the quartzites has been thrown down some 20—80 feet to the west, 
and there is a dyke of fault-rock running along this line. It does not appear, 
however, that this fault-rock had anything to do with the dislocation; or if it had, 
it must be much younger than the rock of the generality of the dykes in this district. 
Down at the bottom of the gorge west of Chellumpully (or Chennumpully) where 
the dislocation and reversed dip of the bed is so evident, there are traces of granite 
banking up the nearly vertical beds of quartzite in the reversed dip. A section at the 
bottom in a north-north-west direction shows the following stratigraphy :— 
Fig. 23. Diagram section of the bottom of the gorge west of Chellumpully. 
gn. gheiss: gr. granite: q. quartzite. 
