NUMMULITIC ELLIPSOID OF JATTA. 1#3 



Here the nummulitic limestone of both sides of these hills meets, 

 Its eastern termina- forming a perfectly natural anticlinal U-shaped 

 ending to the high ground from which the sand- 

 stones of the tertiary series slope into the neighbouring low ground. 



The sketch (Fig. 31) is intended to represent the positions of 4he 

 various rocks looking from where the Ismail Khel river traverses the 

 gypseous series westward. 



1. Place of rock-salt. 2. Gypseous series, gypsum, clay, and alum shale, 3. Red 

 clay zone. 4. Nummulitic limestone. 5, Tertiary sandstone series. F. Faults. 



To the eastward of the Jatta ellipsoid an open plain sloping to the 

 Teeree Towey (Tiri Tauf) stretches out between this and the imperfect 

 ellipsoid containing the quarries of Saya Malgheen (Seya Malgih), the 

 distance between the two being about four and a half miles. 



6. — The imperfect ellipsoid of Saya {Seya) Malgheen (Malgin) {Salt 



quarries) . 



The ellipsoid of Saya (Seya) is apparently formed on a continua- 

 Continuation of Jatta tion of the same anticlinal axis as that of Jatta, 

 that is to say, they both occur in the same val- 

 ley, and both lie between the same two longer ranges in such a manner 

 as would suggest two upward undulations of one long anticlinal axis, 

 there being no hills where the depression between would have carried 

 the hard limestone rocks below the general level or incline forming 

 locally the lowest limits of atmospheric denudation. 



As usual in these features the ground is hilly, but little more than 



one ridge can be perceived, the southern side of 

 Anticlinal imperfect. 



the anticlinal having for the most part apparently 



disappeared in a fault coinciding very closely with the adjacent part of 



the Teeree Towey (Tiri Tarn) river bed, but where remnants are seen 



these are inverted. 



( 237 ) 



