84 KING: KADAPAH AND KARNÜL FORMATIONS. [PART II. 
trap. This conglomerate varies very quickly, within a few yards, from 
an extremely coarse deposit to a fine pebble bed. All round the low 
hills south of Noyanpally the limestones may be seen lapping horizon- 
tally over the undulating quartzite strata of the hills themselves. 
Again, still further south, and not far from the south-west scarp of 
the KARNUL rocks, near the village of Moomoypully, are ‘blue beds’ 
overlying quartzites in a peculiar manner, with a sintery and jaspery 
calcareous breccia and conglomerate lying locally between the two series. 
Between the village and its tank to the south-west, there is a somewhat 
similar ease to that of Pellnyeota in an irregular low ridge or undula- 
tion of tumbled quartzite, either in beds or broken masses, about which the 
earliest deposition of the Koilkoontla blue beds was formed. Possibly 
the whole ridge may really only be made up of huge broken and 
tumbled fragments of quartzite ; nevertheless the limestone is deposited 
in and out, and over these irregularly placed masses of quartzite beds, 
along courses of jointing, or between the blocks, or in hollows, as though 
there had been here an old sea-bottom, with a low reef of tumbled 
debris of large masses of quartzite in their various forms of fracture. 
Here we have in both cases a decided unconformity, as well as 
overlap; while the covered quartzites are not of the next lower group, 
but of the much older KaDAPAH rocks. i 
The denudation to which the Jummulmudgoo group has been 
un c PET. exposed is most wonderfully and  pieturesquely 
displayed about here, or in faet along this south- 
west boundary. The overlying quartzites must have protected the thick 
series of limestones for a long time and to a great extent, but in the end 
they had to yield to overpowering forces in this particular, part of the 
country, and there are now left numerous flat-topped hills with steeper 
or gentler sloping sides, down the greater part of which one ean descend 
as by steps, the stratification 1s so regular and nearly horizontal, to the 
deep valleys between, or scarped terraces of limestone below. These 
( 84 ) 
