244 NERBUDDA DISTRICT. 



and exposes a series of beds whose position throws considerable lio-ht on 

 the question. 



Fig, 19. Sketch section of the rocks as seen near Pullassi, 



It is here evident that the vertical bed, (c) seen forming an island in the 

 Nerbudda, is the upturned prolongation of one which underlies those seen 

 in the escarpment on the right bank, (a) and that its position is probably 

 the result of the disturbances which produced the breccia (b) exposed just 

 behind (south of) it on the left bank. Elsewhere the trap, the alluvium, 

 or some of the formations more recent than this fault, conceal or obscure 

 the features here so well exposed, but no case is known where any of 

 these features is out of place; the breccia line, for instance, is never 

 seen north of the vertical bed of sandstone; nor are the schists ever 

 found between the latter and the Vindhyan escarpment. 



Some minor indications of disturbances, unconnected with boundary 

 lines. — Among the many rocks already described or occurring within the 



Description of the area included in our ma P> few appear more fre- 

 reccia " quently in the valley of the Nerbudda, or attract 



the attention of the geologist more, than one which we still have to notice. 

 It generally is found in amorphous masses of a reddish color, sometimes 

 with a honey-combed surface as if from the weathering of a porous or 

 vescicular rock, sometimes presenting smooth rounded outlines with the 

 polished metallic look so well known as characteristic of laterite. It 

 is extremely tough, has a conchoidal fracture, and the freshly broken 

 surface often presents a horny flint-like appearance. On such a surface 

 there may generally be traced the outlines of angular fragments enclosed 



