KING: KADAPAH AND KARNÜL FORMATIONS. [PART 111۰ 
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the Kolumnullah slates again come in over these beds, the thickness as 
the contact is hardly more than one hundred feet at the most. Further 
still in this direction, or along the left bank of the river as it flows 
through the Palnád, the quartzites are very thin and show evident signs 
of a shoreward thinning out of the group. They are here overlaid, not 
far from their boundary on the gneiss, by limestones of the KARNULS.* 
No strong conglomerates were observed in the Kistnah area, except 
AN in a few localities. . The principal one among 
these is in the Timmerycota range of hills; on 
the right bank of the Kistnah in the western part of the Palnád, there 
are here coarse conglomerates and pebble beds of worn fragments 
apparently of the peculiar non-deseript red and dark-colored striped 
quartzose rocks on which they are resting. The lowest beds here are 
dark-colored, black and purple, coarse sands full of pebbles and small 
shingle of red, black, and striped, hard, compact quartzite, or quartz- 
rock, derived from what appears to be a much older series of rocks.t 
There are again pebble beds and conglomerates of a somewhat 
imilar character at the bottom of these quartzites 1n the western part 
of the Kistnah range, cropping out along the crest of hills south 
of Verabudr Droog; only in this ease there are none of the striped 
rocks of Timmerycota to be seen. At Verabudr Droog these pebble 
beds are overlying purple and grey slaty shales of the next lower group. 
Lower down stream, in the bed of the river, some two miles east of the 
Droog, there is à splendid show of these pebble and conglomerate beds, 
* There must, of course, have been a good dealof denudation before the deposition of 
the KARNUL limestones; but everything indicates that there was a great decrease in the 
thickness of the Kistnah beds from what it is at Irlaconda. 
T The Timmerycota Trigonometrical Station and that part of the back-bone of this 
range of hills are made up of these striped quartzose rocks, which are striking round in a 
curve, and are more or less vertical along this striped, or foliated, or laminated structure— 
it is not clearly evident what the striped appearance is due to. The overlying beds 
are resting unconformably on these rocks. 
(02567) 
