162 W. BLANFORDj WESTEJRN INDIA. [PaRT II. 



It is far from clear how this inlier occurs. As the beds throughout 



Cretaceous Inller south '^^P *« *^® ^^^^^^ ^^^ ^^^ ^^^^^^ boundary is nearly 

 of Kawat, ^ straight line^ along which beds^ somewhat low 



in the series^ abut against the traps^ the most natural conclusion would 



Nature of north bound- ^^ ^^^^* ^^® northern boundary is a fault with an 

 ^^y* upthrow to the south bringing up the cretaceous 



rocks. East of the Kurro, where the boundary strikes east-20°-south^ 

 for about 1^ miles^ this appears undoubtedly to be the case, for two 

 silicious and calcareous veins which occur in the traps are suddenly cut 

 off by the sandstone, which could scarcely be the case if the boundary 

 were natural and the traps consolidated against a denuded ridge of creta- 

 ceous sandstone, in which case a crack subsequently formed in the trap 

 would, in all probability, extend for some distance at least into the sand- 

 stone. There are also other indications of faulting, the beds of sandstone 

 being turned up and cut off along the boundary. But west of the 

 Kurro, there is, for some distance, a ridge of sandstone, between which 

 and the stream there is a deep curve in the boundary, and another similar 

 curve is seen two miles further west, just west of Karkunpoor. The ridge 

 of sandstone just mentioned runs very steadily from the one curve to the 

 other, the beds dipping to the south. The curves are certainly opposed to 

 the idea of the boundary being a fault, but the evidence is not quite so 

 perfect as might be desired, the ground near the Kurro especially, being 

 much concealed by alluvial deposits. 



"West of Karkunpoor thin flaky sandstone, with minute lamiuse 

 of purple clay, and some intercalated calcareous flaggy bands is seen, 

 dipping at about 10" to south- 15°-east. Just west of the stream which 

 runs from the south, close to the village, the trap is seen to rest, ap- 

 parently naturally, though of course quite unconformably, upon these 

 beds, masses of volcanic ash appearing to fill hollows in the sandstone. 

 ( 324 ) 



