126 MIDDLEMISS: PHYSICAL GEOLOGY OF SUB-HIMALAYA. 



micro-granulitic rocks which are folded, crushed, and cleaved by a 

 pressure which has acted in an east and west direction. These rocks 

 run from Bhuwali near Naini TA1 to Khairna, and the same line of 

 strike is continued east of Ganai along another set of volcanic rocks 

 up to and beyond Lobah, near which place, as I have described in the 

 11 Records," they are separated from the schistose area of Dudatoli by 

 a great fault running also north and south for a great distance, until 

 near Ch£ndpur Garhi where it turns away to the west. These two sets 

 of rocks disturbed by east and west crushings are interfered with 

 across the middle of their course by the schistose series at Rdnikhet and 

 Dwarahith ; but I think they are, nevertheless, connected. That line 

 of north and south strike extends for about 60 miles, and makes an 

 angle of 6o° with the neighbouring strike of the Dudatoli schists, &c. 



Neither can it be considered to be due to a mere accidental varia- 

 tion of dip. The intensely crushed condition of the traps and micro- 

 granulitic rocks about Khairna is of exactly the same order as that 

 which I have described in the traps north of the Dudatoli area. The 

 crushing is one which has taken place in the cold and solid state of the 

 rock. It has affected not only the finer crystalline portions of it, but 

 also the amygdules present in the vesicles of the rock, which have 

 become drawn out into shreds. It has cleaved the rock ; and where 

 larger crystals occur in the micro-granulite they have become eye- 

 shaped by the same means. In some cases the rock is absolutely 

 powdered up into dust. 



More than this, this set of rocks at Bhuwa"li is continued south 

 nearly to the Gola R., interbedded with a few quartzites and slates. 

 The strike of cleavage and bedding is, as before, north and south very 

 nearly. Close by the Gola R. they come to an end suddenly by the 

 Nahan sandstone, which is striking in an exactly opposite direction, 

 and dipping towards the north at 65 . 



The lines of disturbance, therefore, in some Himalayan rocks do 

 not coincide with those of the Sub-Himalaya, nor with other Hima- 

 layan rocks, and must have been due to other and older directions 

 of thrust. 



( 184 ) 



