116 BLA.NFORD : GEOLOGY OF WESTERN SIND. 



in lower Manchkar conglomerates. The evidence of great denudation of 

 the Gaj beds during the deposition of the Manchhar group, is more com- 

 plete at this spot than elsewhere. Whether such evidence is connected 

 with the absence of Gaj beds to the south-eastward, is difficult to say. 

 The slopes between the southern border of the Manchhar and the 

 ridge of Gaj beds to the southward are composed 



Manchhar, Gaj, and 



Nari beds south of Munch- of Manchhar beds, which crop out at the sur- 

 face here and there, but are generally covered by 

 a great thickness of subrecent gravel and conglomerate. The ridge is 

 composed of the ordinary dark-brown Gaj limestones and calcareous 

 sandstones abounding in fossils; Echinolampas jacquemonti, Breyniacari- 

 nata, Echinodiscus, Peeten favrei, and Ostrea multicostata, being amongst 

 the commonest forms. To the south, of the ridge, the Nari sandstones are 

 well exposed, the greater portion consisting of soft thick beds, but there 

 are bands of ferruginous sandstone having a peculiar appearance, 

 simulating scorise, and containing fragments of ochrey clay ; and below 

 these again rusty brown sandstones, interstratified with white sands, 

 mottled with purple in places, in very thick beds. Below these again 

 are massive light-brown sands and sandstones with ferruginous bands, 

 containing concretionary brown iron-ore. Towards the base of these, 

 there is a bed of rather calcareous brown sandstone, containing JVum- 

 mulites garansensis and N. sublavigata. This band is several hundred feet 

 above the brown limestones at the base of the Nari beds, and the latter are 

 seen as usual at the foot of the Badhra range. This is a similar case to 

 that noticed on the Kenji Nai (p. 80), and serves to show the connection 

 between the brown limestones with nummulites and the sandstones of 

 the Nari group. Not far to the eastward, as will be shown in the next 

 chapter, the upper Nari beds are unconformable to the brown nummu- 

 litic limestones with N. garansensis. 



From Jhangar, the large village south of Manchhar lake, the hill 



Valley south of roa( l ^° Karachi runs southward through the long 



Jhangar. an( j w j^ e va u e y fa^ intervenes between the Laki 



range to the eastward and the Badhra, Khirthar, and other ranges 



( H6 ) 



