DESCRIPTIVE GEOLOGY : SLATE ZONE. 123 



a thicker band of Trias limestone outcropping down the ridge from 

 Maira and Buloliya and enfolding in a steep synclinal reversed to 

 the north-west a patch of the Spiti shales, which are traceable from 

 the hill behind Kakool as far as 1 mile north-east of Buloliya. 

 The Trias then turns over in an arch, the south-eastern limb 

 becoming sharply cut off by a fault which brings in the Infra- 

 Trias again. The last band may be followed all round the edge 

 of the hills in a south-westerly direction to near Nawashahir 

 (3^954 ^et) where a straight and steady fault brings in the 

 great Nummulitic formation. The Infra-Trias along this line is 

 spread out in a flat platform, receiving above it Trias limestone 

 in a very gentle synclinal fold. Such is a brief account of the rock 

 bands as projected on the rim of the alluvial bay from Meerpoor 

 to Mundroch Chhothee. 



The following more noteworthy points in the section may here 

 be given. As regards the Infra-Trias last mentioned near Mund- 

 roch, it consists of purple shales in a rather obscure outcrop next 

 the fault, covered by purple sandstone, and a white, powdery fels- 

 pathic sandstone. In all ways these rocks resemble the sandstones 

 and shales which we found representing the Infra-Trias near Shakur 

 Bandee, and Bazdar. No conglomerate is exposed at this point 

 nor are there any calcareous members of the Infra-Trias present. 

 Dipping at a low angle north-west at first they then flatten out as 

 mentioned above. Just about the "C" of Chhothee, and the "n'> 

 of Mundroch Buree fragments of hard haematite andbrecciated felsite 

 were found, but the rock could not be traced to a position in situ 

 between the Infra-Trias and Trias. Such places as were explored, 

 as for instance the edge of the hills south-west of Kakool shewed the 

 latter superposed on the former, without any intervening volcanic 

 rock. Nevertheless, the fragments strewn over the exposed 

 surface of the lower series plainly indicate that it does exist in 

 certain places, though not in all. 



North of the village of Kakool the stream-bed is strewn with 

 large fragments of felsite in considerable quantity — a fact accounted 



( 123 ) 



