254 KING: KADAPAH AND KARNÜL FORMATIONS. [PART I11. 
where the earthy purple and red slates are found to be resting on coarse 
dirty-colored massive quartzite-grits. These form the floor of this 
tributary of the Kistnah far back up its course. Thence the path 
climbs up over the outcrop of the whole series of slates to the plateau of 
upper quartzites on which Sreeshalum is built, as in the following 
diagrammatic section :— 
8. 
i H 
à i E 
3 E ii s و‎ NNE 
ک بی‎ 3 $ È & re x 
بح‎ a 3 oe 800-1006 f* 
ا‎ = 
Fig. 42. Diagrammatic section across the Sreeshalum plateau. Hor. Scale Z miles to 1 inch. 
a.—Sreeshalum quartzites with intercalated slates aoe ae 
b.—Kolumnullah slates with tesselated sandstones, &c. ... 2 Kistnah Beds. 
e.-—Iriaeonda quartzites As "v vis E 
None of the beds in this part of the field are at all such typical 
slates as are seen in other localities. "They are here essentially earthy 
slates, very well cleaved, but with no obscurity in their lamination. They 
are often shaly enough to give fine opportunities for exposing organic 
remains if there were any.* ‘There is such a grand display of these 
strata here that they may be called after the Kolumnullah, so as to 
distinguish them from Sreeshalum quartzites above. 
To the east of Sreeshalum beyond Shigaram Pagoda there is a 
sharp roll up of the strata by which the sandy flags and shales beneath 
the upper or Sreeshalum quartzites become exposed, but these soon 
roll down again to the east, and then the rest of the river-valley is of the 
upper most beds. The lie of the strata is in a shallow basin or trough, rising 
up north and south, and for part of the distance, up to the east—as in 
* I examined the beds frequently in my climbs up over these slates, but could find 
no trace of organic remains.—W. K. 
( 254 ) 
