108 BLANFORD ! GEOLOGY OF WESTERN SIND. 



ferous limestone forms low rises. The green clays and their associates 



may be traced along the base of the hills to a village called Mithunjo 



on the inch map, and perhaps a little further south. Near Mithunjo 



they are well exposed between the two limestone hills called Maleki 



Khanwari and Sherawari Tekri, and the clay here contains Leda and 



other bivalves. 



About Kot Deji there are numerous detached hills. Those at the 



„ . ,, , , „ T . , town itself are escarped, and are apparently con- 

 Neighbourhood of Kot r Li J 



Deji. nected with the main range by rock, no alluvium 



intervening, for limestone crops out every here and there amongst the 

 sand-hills, east of the town. Some isolated rises west of the Mir-wah, or 

 Khairpur canal, appear completely surrounded by alluvium. 



South of Kot Deji there is no escarpment, and the rock dips to the 

 south-west, or is horizontal, and forms low rises, much as to the eastward, 

 greatly covered and concealed by sand-hills. The latter gradually increase 

 in height, until, beyond the neighbourhood of Busdar, only isolated 

 patches of rock can be found. 



The blown sand of these hills is of a pale greyish tint, and appears 



to consist mainly of quartz. It contains some 

 Blown sand. . . .. 



mica. This blown sand covers an enormous area 



to the east of Sind ; but the country is beyond the limits of that described 



in the present report. l 



CHAPTER VI— SOUTHERN KHIRTHAR, BHIT AND BADHRA RANGES 

 WITH THE NEIGHBOURHOOD OF MANCHHAR LAKE. 



The present chapter deals with the area immediately south and south- 

 east of that described in the last but one, and 

 treats of a tract of country extending from the 

 plains of Upper Sind, near the Manchhar Lake to the Baran river, and 

 from the western frontier to the valley traversed by the hill road 



1 For an account of the blown sand in the Indian desert, and the peculiarities of the 

 sand-hills, see Jour. As. Soc. Bengal, xlv, 1876, pt. 2, p. 86; Rec. Geol. Surv. India, x, p. 20; 

 Manual, i, p. 436. 



( 108 ) 



