CHAE. 1.[ THE KADAPAH FORMATION. 137 
cleavage planes are seen rolling about very much, now dipping east 
or west, and presently vertical, tnere the associated quartz is found. 
So that the deposition of the quartz would seem to be an accompani- 
ment in some way of the formation of curved cleavage. At the same 
time, the bedding is at various angles westward; and its surfaces are 
frequently puckered in sinuous ridges and furrows. 
Likewise, on the Jungumrazpilly pass across the Nullamullays, 
(Fig. 182), there are grey slates in which the planes of cleavage are undu- 
lating with a general dip of 30° to 35° eastward, strike of planes N. 3° W., 
surface of planes slightly rugose or puckered up in sinuous lenticular 
elevations and depressions. 
Fig. 18. (a) (b). Wavy cleavage-planes. 
s (508% 3 
