i 4 o 



GEOLOGY OF THE SON VALLEY, ETC. 



East of Maoli, at Bichiadol, there is an exposure of beds only a 

 few yards away from the gneiss ; they are highly crushed and dis- 

 turbed, dipping 40 W. of S. at 70 . 



East of the last-named point the line of separation between the 

 Barakars and gneiss can always be followed with very near approxi- 

 mation. The actual boundary is often marked by a band of the 

 peculiar " quartz-reef," or "hornstone-breccia." At one point there 

 is a tall narrow range of Mahadevas; but it is scarped on all sides 

 and of the nature of an outlier; yet the boundary occurs a very short 

 way north of it, and as the dips in the rocks are generally low or 

 inappreciable, there must be a fault as shown in Fig. 17 in order 

 to bring the gneiss almost on a level with the base of the Mahadevas- 



Fig. 17. 



I have not followed the boundary further east. Whether the ex- 

 planation given to account for the observed facts be correct or not, 

 it is well established that along all this line the junction is nowhere 

 of a normal character, that in several instances faulting is evident,, 

 and the main feature of the junction is that of a fault. 



140 



