Sec. 6.] detailed desceiptions. 117 



Tliey are the same wliite and occasionally brownish compact sandstones, 

 conglomeritic in places, which are seen at Dhabka. The beds are very- 

 massive, and obliquely laminated to a great extent. Ferruginous bands 

 are common, and beds of shale occur, white and lilac, and occasionally 

 deep purple in colour, and containing obscure plant impressions."^ Near 

 their southern border they dip at 15° or 20° to north-north-west, but the 

 inclination gradually diminishes to the northward. The trap dips at a 

 lower angle in the same direction. There is certainly unconformity : in 

 the Maroo, traps, dipping at 5°, rest upon sandstones dipping at very 

 nearly 15°, but part of the apparent difference may be due to the gradual 

 Unconformity of traps diminution of the dip to the northward. The con- 

 on sandstones. ^^^^^ Occurrence of the calcareous bed at the top of 



the sandstone, on the other hand, looks like conformity between these 

 beds and the trap. It is, however, highly probable that the traps and 

 these calcareous beds may be conformable to each other, and that both may 

 be unconformable to the sandstones below. At the time that the beds 

 were surveyed, no such unconformity was suspected nor searched for, but 

 it is a question worthy the examination of some future explorer. As has 

 been already remarked, it is highly probable that while the calcareous 

 beds are Lameta or Bagh, the sandstones below represent the rocks of 

 Kamptee. 



Near Gordo the dip of the traps is as high as 10°, and in one place 

 even 15°. This is near the fault, which is evidently. 



High dip in traps. 



in part at least, of later date than the traps. 

 Outside the base of the hills at Salbaldee, there is a narrow band 

 MetamorpMcs at Sal- ^^ metamorphic rocks faulted on both sides; on 

 ^^^^^^- the north against the sandstones, to the south 



against the traps. The general strike of the foliation is the same as 

 that of the fault at Salbaldee east-north-east to west-south-west, which 

 is also the direction of the great faults in the Nerbudda vaUey. The 



* There is a decided resemblance between these rocks and those of Bazargaon near 

 Nagpoor. 



( 279 ) 



