GENERAL GEOLOGY OF THE AREA. 



Towards the left (north) of the profile the anticlinal folds of schist, 

 as above described, form a series of low rolling hills. In the distance 

 the continuation of the Pats towards Chatania is visible. The schist 

 hills slope gradually down towards the Tatapani basin, where (5 in fig. 1, 

 Plate I) the Talchir boulder bed and shales are seen, at once distinguished, 

 from the former by the dry jungles of thorns so characteristic in all 

 the older Gondwana rocks. 



There is a variety of hornblendic gneiss remarkably like decomposed 



sandstone in appearance, with quartzose schist 

 Sandstone-like gneiss. -, .^ • -.i 



dipping at a high angle towards the gneiss on the 



south, but forming a great fold as the dip turns round to the north again. 

 The strike is east-north-east to west-south-west, the same as the great 

 bounding fault which cuts off this area and throws the Gondwanas 

 against the schists. 



Another area, but strategraphically related to the preceding, forms 



Second area of meta- a fork inclosiug the gneiss of the Lurgi-Chandaura 



morphic schists. hills (Mandru 3,373 feet, Andru 3,23 S feet), and 



stretching in a south-west direction, forms the low hilly country near 



Pertabpur. 



The extreme eastern extension of the fork is composed of the sand- 

 Ridge of the water, stone-like gneiss, thin-bedded and in parts resem- 

 shed of Eer and Kunhur. \,\[^g -^{qq, schist ; it rests on the old gneiss forma- 

 tion on which Dhanuar is situated. It is in situ in the nullah flowing 

 north of the village in an east-west direction, and dips at a high angle 

 from the gneiss. From thence in a south-west direction stretches far away 

 a low range of hills of nearly uniform height, and forming at the same 

 time the watershed between the confluents of the Rer and Kunhur 

 rivers. This range is entirely composed of mica schist with associated 

 quartz schist and quartz rock. Following it from 

 east to west, I found it near Kobi, in the Goga 

 stream section, composed of pure quartz rock, which changes near Rampur 

 into a quartz rock with a few leaves of white mica disseminated through 

 it Crossing the range from Rampur to Kapaut, we find also patches o£ 



( 133 ) 



