1 1 & WYNNE : TRANS-INDUS SALT REGION, KOHAT DISTRICT. 



rendering the arrangement obscure, still a tendency to an anticlinal 

 structure may be observed. The clays of the gypseous series appear to 

 be locally very thick, though much wasted, and the gypsum is most 

 largely developed on the south side of the original curve or arch. 

 Fig. 21 shows this section at Soortung (Surtung) salt locality west by 

 south from Teeree (Tiri). 



1. Salt. 2, Greenish and gray clays. 3. Thick gypsum bands. 4. Brown sandstones and earthy 

 limestones and shales with bands of gypsum and of purple or red clay. 5. Shaly and compact nummulitic 

 limestones. 6. Tertiary sandstones, clays, &c. Three feet red clay bands to south of section. R. Thin 

 red clay north of section. G. Thin band of gypsum. f.F.F. Apparent faults. 



Ascending to the first northern brow of the range here, over curved 



xr ,.,. ,. and tilted tertiary sandstone, some thin, shaly, and 



Nummulitic limestone J ' ' J ' 



associated with .gypsum. h ar( j er li mes tone of the nummulitic series crops 



out along the summit of the ridge, and turning over faces its southern 



side, sloping into the valley. Just at the northern outcrop at one spot, 



a little gypsum was found beneath the limestone, and as if overlying some 



red clay. Towards the top of the outcrop very 

 Lower Nummulitics. 



dolomitic-looking limestone, succeeded apparently 



the more shaly kind, and then overlying this with a dip of 30° to the 



south came a glistening saccharoid gray sandstone succeeded by red clay 



and purple sandstones, then by sandy clay with masses of white, opaque, 



gypsum in it, all over laid by 80 or 100 feet of dull, earthy, calcareous and 



sandy rock, passing in places into hard, whitish and gray calcareous 



sandstone, coarse calcareous sandstone and limestone in places. 



These rocks soon change from their southerly dip, forming a syncli- 

 nal curve as shown at 4 in the section, but in the southern outcrop of 

 this synclinal the section is not at all the same as that to the north. 



The calcareous and sandy rocks last mentioned form the upper edge 



of this scarp, resting upon 50 feet of whitish, soft, 

 Gypsum in this group. 



gypsum, beneath which is a talus of 200 feet or 

 so chiefly formed of greenish-gray clays. 

 ( *16 ) 



