NERBUDDA DISTRICT. 255 



striking a feature this parallelism forms in the geological structure of 

 the country, and if the Vindhyan fault be considered through its course 

 from Mundlaisir to Eotasgur (see smaller map), the extent of length 

 along which this parallelism, or approximate parallelism, exists is very 

 considerable. The continuity in rectilinear direction of the faults No. 2 

 (the boundary faults of the lower Damuda and Talcheer rocks) has not 

 been followed out to any thing like the same extent, but enough is 

 known to show that they too are approximately parallel to the others. 

 The direction of all these fault lines is capable of being determined with 

 an exactness seldom attainable in measuring that of hill ranges, while 

 at the same time the great length to which they are known to extend, 

 and the very important part they play in the physical geography of the 

 country, certainly entitle them to be ranked with the results of those 

 great movements in the earth's crust to which the elevation of mountain 

 chains has been attributed. 



Considered from this point of view, the results at which we have 

 arrived, go to show that in our district important displacements of the 

 rocks of several distinct formations, along lines rectilinear in directions 

 for great distances, and remarkably parallel to each other, are due to 

 movements which were not synchronous, but on the contrary occurred 

 at intervals separated by the lapse of whole geological epochs. 



Referring to the list of faults given above (page 250,) we have in the 

 first place faults No. 1 and No. 2 demonstrably of distinct age; the 

 older can be proved anterior to the deposition of the upper Damudas, 

 and the more recent subsequent to the consolidation of the Lameta 

 beds. 



I have endeavoured to show that the Vindhyan fault is older than the 

 oldest Talcheer beds. If the evidence adduced in support of this view 

 be considered sufficient to establish it as a fact, we then have another 

 great fault line parallel to each of the former fault systems, and sepa- 

 rated in age from the more ancient of those by the whole period during 



