132 blanford: geology of western sind. 



water-course runs between the two sandstone hills. Along- the bed of 



this stream there is a foot-path, practicable with a 

 .Section at Barrah Hill. 



little climbing. 1 



At the base of the hills Manchhar beds are seen dipping at an 

 angle of about 35° to 45° to east-10°-south. Some of these beds are 

 fossiliferous, containing casts of shells, and rest unconformably upon 

 pale olive clays of Khirthar age, containing Corbula, Area, Cardita, Sfc. r 

 and passing into a bed abounding in Nummuliles leymerici. The latter 

 rests upon nummuhtic limestone (Khirthar) . 



The nummulitic limestone continues for some distance, and forms- 

 the outer ridge of the hills, the beds having a reversed dip of about 8U° 

 to the westward. West of this ridge is some low ground, in which the 

 upper members of the Ranikot group crop out, also with a reversed dip. 

 They comprise the bed with Rostellaria, already mentioned. They end 

 abruptly against a small cliff of white and grey limestone, the boundary 

 being* clearly a great fault. Here, therefore, as to the northward, 

 Ranikot beds occur east of the main fault. 



This white and grey limestone of the cliff is compact and hard, and 

 the upper portion is very sandy and gritty, the lower part purer. In the 

 upper part there are thin gritty ferruginous bands. The rock abounds in . 

 fossils, but, as a rule, only sections of shells, &c, are seen, and it is very 

 difficult to obtain anything recognizable. No Foraminifera could be 

 detected, but sections of Echinoderms and Gasteropods are common, and 

 one fragment of a Hippurite was obtained. 



Above the limestone, and, to some extent, passing into the gritty 

 calcareous beds already mentioned, is a great thickness of sandstone form- 

 ing the dark-coloured hills. The sandstone varies greatly in colour, being 

 brown, pink, and in places white ; with beds of conglomerate, dark gritty 

 limestones, and ferruginous bands. The whole weathers of a very dark 

 colour. 



1 The spot is about 10 miles south-west of Amri. The name of Barrah is only known 

 to the Baluchis, who, when water is available, drive their sheep, goats, and cattle to the 

 hills for pasture. The place may be recognized from a distance by the two dark-coloured 

 hills. 



( 132 ) 



