THE LAKI RANGE, ETC. 12'S 



separated from each other by valleys of various widths. East of the 

 Country between Laki ran g e tnere is a broad synclinal occupied by 

 range and Indus. Manchhar beds, on the edge of which the Nari 



beds are, except at one locality far to the northward, absolutely wanting-., 

 and the Gaj beds either absent, like the Nari, or represented by a 

 very thin band often not more than a few feet in thickness. East of 

 this again is a very gentle and broad anticlinal, in the middle of which 

 the Ranikot beds are well exposed. To the southward the dips are very 

 low indeed, and the geology becomes very simple — an expanse of Khirthar 

 beds to the westward, from beneath which the Ranikot group crops 

 out to the eastward, near the edge of the alluvium. 



In order to avoid frequent references, it is as well to state at once 



that nearly the whole of this area is very in- 

 Inaccuracy of map. 



correctly represented on the Revenue Survey 



map. The details in the Laid range are especially inaccurate : for 



instance, the Mohan river, miscalled the " Runneewaree " on the map, 



is represented as rising some 8 miles too far to the north; and the 



main range, instead of lying east of the upper portion of this stream, 



is apparently that shown to the westward of the valley, this ridge being 



continuous all the way southward to Ranikot. The country between the 



Laki range and the Indus is also very incorrectly represented on the 



map. 



The description of the area commences, as usual, at the northern 



extremity at Sehwan, the Manchhar beds extending 

 Manchhars near Sehwan. 



north from the Rhagotnoro spur to the town 



itself. Close to Sehwan the Manchhars are seen dipping to the westward, 



but no good section is exposed for the 3 or 4 miles to the southward. 



From 4 to 6 miles south of Sehwan, however, near the place marked on 



the map as Wand Hote Khan, a very interesting section is seen, extending- 



from the Khirthar to the Manchhar group. The section is very well 



exposed near a foot-path leading from Jhangar to Rhagothoro. All the 



beds dip west by a little north, at an angle of about 45°. 



Going eastward from the road between Sehwan and Jhangar, the 



( 123 ) 



