MARWAT AND KHASOR HILLS. 63 



to the lower parts of the formation. Many of the beds are fossili- 

 ferous, chiefly containing- Bijozoa, Proclucta, many Corals, and some 

 Terebratula. 



Above the lowest 200 or 300 feet of these rocks is a hard sandstone 

 band of 30 feet or so ; and at some distance further up in the section are 

 soft sandy beds containing Bellerophon. These continue to the base of 

 the cliffs overlooking the slopes, at which point longitudinal slippage or 

 faulting seems to have taken place, and the cliff limestone is chiefly white 

 and highly f ossilif erous, containing Proclucta, Spin/era, a large flat pecten- 

 oid shell 6 inches in diameter, Corals, Bryozoa, and in the uppermost of 

 these cliff beds several fossils of the unnamed form previously referred 

 to (p. 30) occur in the same beds with the club-shaped spines of an 

 Echinidea. 



Similar relations continue for a long distance southward : the crest 



of the hill carries with it a lower cliff escarpment 

 Towards Omar Khel. . . 



than is usual ; the upper beds dip into the I/wargi 



or Rumani Khel valley, and the lower part of the group, slipped about 



and undulating, covers the whole south-eastern slopes with crags and 



shingle. Towards Omar Khel the crinoidal limestone, though shattered, 



seems to overlie rusty calcareous and greenish sandy beds with Fusulina, 



and from beneath these come a mass of grayish and red, but chiefly red, 



clays and sandstones. 



These red and earthy beds belong to the boulder group ; they project 



from the hill side at such a height that the group 

 Boulder group. . • 



must occupy a considerable space m the section, 



and they are largely exposed in the Chedala wan, a little way south- 

 ward from the village. The beds are disturbed, somewhat over-slipped 

 by higher portions of the same group, and appear to be also more or less 

 contorted, but their general dip is to the north-west, at first high, then 

 vertical, and again lower, passing under the carboniferous limestones. 

 Although it is not certain, still there is, from the general appearance of 

 the section and the occurrence twice of boulder beds, just a possibility of 



( 273 ) 



