170 KING: KADAPAH AND KARNÜL FORMATIONS. [PART III. 
the dip of either the one or the other set of beds is so low and the 
sections so obscured by debris that nothing certain could be made out. 
However, the fact of the contained pebbles at various pomts being 
clearly of the underlying rocks, and the strong unconformity displayed 
to the south-west of Cuddapah, were decisive as to this distinct form 
of demarcation between these strata and the Paupugnee beds. 
The Margooty hills, on the Kistnah, are made up of quartzite 
sands, flags, and pebble beds, which underlie the 
On the Kistnah. ۱ 
slaty shales of the little Doorgum valley; but the 
order of succession 1s much obscured along the south-western slope. 
Contain Hout ot dos On this aecount the breecia beds are not at all 
VENE clear in their relations to the other beds, appearing: 
sometimes to be the uppermost and at other times the lowest of the series. 
The fragments in the breccia are of various pale-colored jaspers and cherts, 
with others of a peculiar white or buff silicious chert, which is made up of 
countless minute spheroids, giving quite an oolitic structure to weathered ۰ 
fragments. These contained fragments of oolitoid silicious chert are 
common to the lowest breecias and conglomerates of nearly the whole 
extent of the western outcrop of the Poolavaindla (Naggery) quartzites. 
They are evidently derived from beds of such rock in the subjacent group. 
Spread out over gneiss. At the passage of the Kistnah, at Someesalla and 
Shideshver, a ridge of quartzites has been cut through, which ridge 
eventually turns out, in its extension to the westward, to be formed of 
gneiss capped by quartzite conglomerates and breccias containing these 
fragments of oolitoid rock. And thence the same beds are spread out 
further west in the low ground and as cappings to some outlying hills. 
When describing the KARNÜÓÜL rocks, it was stated that Mr. Foote 
Mr. Foote considers is inclined to look on these outer quartzites as 
Do AM B UN belonging to the Banaganpillys, or diamond- 
bearing beds of the district; and that he had found some fragments 
of this oohtoid chert in the conglomerates of Singuwarrum hill. The 
۲ ۵ زر‎ 
