SOUTHERN KHIRTHAR, BHIT AND BADHRA RANGES. 121 



On the west side of the little anticlinal ridge near Pokran, the suc- 

 cession of rocks is similar, but the Manchhar beds 



West of Pokran. 



are more largely developed. There is a broad 



expanse of desert plain, about 5 miles wide from east to west, chiefly 

 composed of Manchhar beds, the surface being mostly covered with 

 gravels derived from the disintegration of conglomerates. Gaj beds 

 are seen thinly represented at the base of the Manchhar group, and the 

 latter forms first a slight synclinal and then a broad anticlinal with 

 low dips. West of the plain, near the base of the Khirthar Range, the 

 first rock seen, after quitting the gravels, is Alveolina limestone (Khir- 

 thar) dipping eastward, and between this and the main range the rocks 

 are much confused. There is evidently a considerable amount of fault- 

 ing here. 



The anticlinal just mentioned becomes more developed to the south- 

 ward, and brings up Nari beds west of the police post at Karchat, 

 where Gaj and Nari beds are seen highly tilted, the axial portion of 

 the fold having been weathered out in the form of an imperfect am- 

 phitheatre, around which the outcrops of the different beds form con- 

 centric ridges. The oval is incomplete, for the west side is cut off by a 

 fault. 



This is close to the southern termination of the Khirthar range. 

 Southern extremity of The southern spur is a massive anticlinal of 

 Khirthar range. Khirthar limestone, rising, according to the Great 



Trigonometrical Survey measurement, to a height of 2,388 feet above 

 the sea. The Baran valley to the west and south of the range will be 

 described in Chapter VIII. 



( 121 ) 



