HAYDEN : GEOLOGY OF NORTHERN AFGHANISTAN. 



Fig. 11. 



Section through the H&jar valley. 



are formed of the Red Grit series capped by the Cretaceous limestone 

 (Plate 18). 



As already pointed out, the lower end of the Kahmard valley 

 where the river turns sharply to the south, is also 

 filled with Tertiary beds similar to those of Dasht- 

 i-Safed and Banak. About two miles above the bend is the ruined fort 

 of Bajgah 1 and here a deep and narrow gorge through the anticlinal arch 

 of Cretaceous limestone connects the Kahmard valley with Madar. 

 Plate 17 is reproduced from a photograph of the gorge taken from the 

 Madar side and looking into Kahmard; figures 10 and 12 show the 



1 Mr. Griesbach's reference (9, 256) to Captain Hay's discovery of eocene fossils at 

 Bajgah was written when in camp and when he was unable to consult the original 

 paper (14, 1126), which merely contains a few sketches made by Captain Hay of 

 fossils that he had collected at and near Bajgah. The sketches are too incomplete to 

 be relied on for more than an approximate generic determination of the fossils, the 

 majority of which I should be more inclined to think were derived from the Upper 

 Cretaceous beds in the neighbourhood of Bajgah Fort. 



