168 W. BLANFOllDj WESTEKN INDIA. [PaTIT II. 



But if a fault does intervene, why should this not be the north 

 boundary of the south-east patch of sandstone ? The reasons for doubting 

 the fault nature of this have already been given, and it appears probable 

 that the fault may have been of pre-trappean age. 



South of these patches of sandstones, in the mass of hills which 

 intervene between the Nerbudda and the flat ground watered by the 



,, „^ Kurro and other branches of the Hiran stream, - 



Ashy sandstone and ' 



conglomerate and inliers ^^^^^ ^^^ ^ ^g^jg ^f ^J^g ^shy sandstone and 



of cretaceous beds south •' '' 



of the above. conglomerate already mentioned, and also oc- 



casional small patches of cretaceous sandstone, so irregular in their 

 mode of occurrence that they are evidently in part brought up by 

 faults. - - 



A few miles south of the Chiklee Nanee before mentioned, an ashy 

 conglomerate is largely developed on the banks of a tributary of the 

 Kurro, between the villages of Mogra and Nakhal, and about half a 

 mile north of the former. It contains rolled and angular fragments 

 of various rocks, comprising altered sandstones, slate, and quartzite 

 in small quantities, crystalline marble with octohedral crystals of 

 magnetic iron, (a rock not observed in the district), and, above all, of 

 trap. The matrix is mainly trappean, with hornblend crystals, and has 

 the appearance of ash. It is excessively difficult, if not impossible in the 

 semi-decomposed condition in which these " ashy'^ beds occur at the 

 surface, to ascertain whether the matrix consists of small rolled fragments 

 of trap or of volcanic scoriae. The latter, which is so largely showered 

 out during volcanic eruptions, would be, of course, swept in quantities 

 into any stream which might exist. 



The conglomerate just mentioned is distinctly seen to rest upon 

 trap. It must be some hundreds of feet above the base of the volcanic 

 series. A similar bed, also. overlying trap, is met with about three miles 

 further east at Boojur on the Kurro. It abounds in rounded fragments 

 of sandstone derived from the cretaceous rocks. 



( 330 ) 



