SEC. 7-] CHAEWAR AND KATHOL RANGE. 199 



The upper jurassie rocks surround Deopur^ forming a bay to the 



„ west, crossed by a basaltic dyke, and run in among 



the traps south of the very conspicuous conical 



peak called Korikoba, more than 300 feet in height, and formed of 



rudely-columnar basalt overlying 200 feet of soft infra-trappean grits. 



Between Mhow and Mukkra denudation has exposed the upper 



sandstones within the general boundary of the 

 West of Mhow. 



traps, which are but thin for a short distance to the 



south, small inliers of the sandstone appearing in a few places. East- 

 ward of Mukkra village a stream valley exposes a section showing more 

 irregularity of the surface upon which the traps were deposited than 

 usually exists. Here an old sandstone and shale cliff, about 30 feet in 

 height, has been enveloped by the traps, and subsequently disclosed by 

 partial removal of their beds at a turning in the stream. The Jurassic 

 rocks are somewhat altered by contact with the trap, and a bed of white 

 sandstone has a glistening fracture, like that already described at 

 page 193.* 



The Gharwar range may be said to terminate to the eastward of this 

 place, but the same anticlinal, or else one parallel to it, continues to the 

 westward in the stratified traps of the Chitrana Hills. 



* In one or two places in this neighbourhood small portions of a band of " granular 

 and compact" sandstone rock, resembUng quartzite, were noticed by Mr. Feddeu in the trap 

 as though inter-stratified between two vesicular flows, with vertical tubes filled by zeolites 

 and green-earth. The sandstone is described as altered and passing in one place laterally into 

 a brown, decomposed amygdaloid, with small columnar structure. 



The fact of this sandstone being inter-bedded is not so clear as in another case to be 

 hereafter mentioned. At the place above described the white sandstone, said to he identical 

 in character, was clearly of Jurassic age, small portions jutting out from the old cliff 

 having been enclosed by trap afterwards partially removed. 



( 199 ) 



