2$ MIDDLEMISS: GEOLOGY OF HAZARA AND BLACK MOUNTAIN. 



opaque white quartz mentioned by Waagen and Wynne 1 belong to 



a faulted portion of the Infra-Trias (see infra, page 101). A few 



of the beds are slightly more arenaceous than the rest, but they 



never become so siliceous as to merit the name of quartzites. 



Some steatitic clay-stones are recorded by Sub-Assistant Hira Lai 



from near the base of the series in the vicinity of Shakur Bandee. 



Besides the imperfect remains of small broken shells mentioned 



above, there occur in certain places better pre- 



Fossils of the Tnas served outlines of mollusca, which may be 

 limestone. 



traced on the surface of the limestone blocks. 



I have found, as Waagen and Wynne found, that making any collec- 

 tion from this formation is impossible, owing to the way in which the 

 fossils are " impacted in the hard rock from which they do not 

 separate." 1 am, therefore, unable to add anything to what the above 

 observers have written as regards the main Triassic limestone forma- 

 tion. 



If reference to Waagen and Wynne's original memoir be made, it 

 will be seen that from the occurrence of the genera Megalodon and 

 Dicerocardium chiefly, together with Chemnitzia, Gervillia y Rhyn- 

 chonellse, Terebratulse, and some uncharacteristic bivalves and 

 gastropods, they regarded the formation to be a representative of 

 the lower part of the Upper Trias of Europe and of the Para lime- 

 stone of Spiti (Stoliczka). At Khaira Gali also Ostrea Haidingeri 

 was identified by Dr. Waagen among the same limestone formation. 



They also claim to have detected another (higher) stage of 

 the Trias near Sulhud, in which they found the uncharacteristic 

 genera Nerinea, Neritopsis, Astarte, Opts, Nucula, Leda, and 

 Ostrea. I shall shew reason later to doubt the assigned stratigraphi- 

 cal position of these beds, inasmuch as a large section of the faulted 

 Infra-Trias limestone on the north face of Sirban hill has apparently 

 been included by Waagen and Wynne in their Trias limestone 

 series. 



1 Mem. G. S. of I., Vol. IX, 1872, p. 6. 

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