174 NERBUDDA DISTRICT. 



. , x , great majority of the lines of breccia are also to 



Coincide with those of to J.J 



breccia.. be found. 



The localities already described will furnish examples of this. Return- 

 ins to Rawundeo, the rocks exposed near that 

 Cases of disturbed 

 areas. place, in the Tawa, are considerably contorted and 



lst case ' disturbed ; and the dips which are often at high 



ano-les are often reversed, butpassing towards the north, that is away from 

 the boundary, evidence of contortion and disturbance becomes gradually 

 less and less apparent. 



Acain, in the Machna, the beds are considerably broken, and bent; but 



if, from the junction of that stream with the Tawa, 



we proceed down the latter, to the N. — that is 



away from the boundary of the crystalline rocks, the beds gradually 



approach more and more to the horizontal. 



Again, in the Sita liiva section at Mopani, see Fig. 8, the beds are 

 less and less disturbed in proportion to their dis- 

 tance from their N. boundary. The dip decreases 

 from the vertical beds seen at the north end of the section, to one of 15° 

 where the Mahadeva conglomerates overlie them on the south, and in the 

 Johilla section precisely the same conditions are again repeated. 



It will hereafter be shown to how great an extent the boundaries be- 

 tween all these sandstone formations and the crystalline rocks, are 

 faulted, and no doubt the movements, which produced this break in 

 continuity of the beds, have also extensively influenced the stratigraphical 

 condition of the Talcheer and lower Damudas, disturbing them in the 

 vicinity of these boundaries, and of course, affecting them in inverse 

 ratio to their proximity to them. 



It is certain that the lower Damuda and Talcheer groups were much 



, ,. . disturbed prior to the deposition both of the Ma- 

 A ge of denudation of * r 



lower Beds. hadevas and also to that of the upper Damudas. The 



Mopani section (see Fig. 8), shows this very clearly for the Maha- 



