CHAP. 2.] KADAPAH FORMATION.—PAUPUGNEE BEDS. 151 
“Near Gooleheroo the surface of the gneiss, which here is highly syenitoid 
and considerably disintegrated, 1s covered by coarse purplish ferruginous quartzites, 
with occasionally thin slaty beds. Over this, massive thick-bedded quartzite which 
forms the mass of the hill, and, with some hard purple slates overlying it, composes 
the sloping surface of the hill northwards. The general slope of the hill northwards 
is about the same as the dip of the beds. 
“ Again, north-west of Goolcheroo, thick massive beds (quartzite) at bottom 
(the actual junction with the gneiss, which is seen close by, being obscured by debris) ; 
then about 20 feet of thinner-bedded, somewhat flaggy strata. Over these, coarse 
false-bedded quartzites forming the mass of the upper part of the hill, 2 to 300 feet, 
with some purplish slaty beds* overlying them and stretching northwards down the 
slopes of the hills. Similar beds are seen on all the spurs of the ranges east and 
south-east of Goolcheroo. 
* Nulkoorty peak, one of the highest, 1f not the highest point of this part of the 
range, shows fine cliffs of purple and yellowish quartzite in thick massive beds very 
similar to those seen near Goolcheroo. In the valley north of Nulkoorty purple slaty 
beds are seen.” 
With these purple slaty beds in other parts of this long east-west 
Rule deal norih faulted valley are bands of limestone: and these 
of Nullcoorny pese beds are the same as those further west in the 
Paupugnee. The middle of this valley except for a few miles at either 
end is of granitoid gneiss traversed by trap dykes: and on the northern 
side there is a second line of bold and precipitous cliffs of hard grey 
quartzite which are the same as those in the outer Nulkoorty scarp. 
There has been a downthrow to the south of from 3 to 400 feet along 
a series of faults by which the gneiss is thus brought in, in sharp con- 
tact with quartzites and limestones. This system of faults dies away 
at the eastern end of the valley, until the edges of the quartzite on 
either side of the fault are brought into contact again. Before the 
dislocation took place, the Gooleheroo quartzites must originally have 
lain in a great roll over a hill in the Cuddapah gulf which thus gave 
the Nulkoorty peak elevation, for there is a cross watershed in the 
middle of the range whence the streams flow away east and west. 
* These are the dying cut traces of the superincumbent limestone slate series.—W. K. 
T 9,030 feet ; southward of Cuddapah. 
(aie رز‎ 
