36 W. BLANFORDj WESTERN INDIA. [PaRT I. 



as on the Chota Tawa river near its confluence with the Ner- 

 budda, and in the Kanyar river in the Dhar forest, the laminaj were 

 found to be no longer plane, but concentric around a nucleus, and near 

 Bagh the bedding was in more than one case traced across the direction 

 of the lamination, the latter being parallel to the cleavage seen in the 

 slates. 



The other rock is equally striking. It is a massive breccia, the 



Jasper or liornstone ^^trix of hornstone or jasper generally more or 



"^^^^^^- less red in colour, and containing angular fragments 



of white quartzite, sometimes apparently arranged in regular strata, but 



traversed in every direction by cracks filled with the jasper. 



Brecciation indeed is extremely common throughout all the beds of 

 _ Prevalence of breccia- ^^^ series. In places where the limestone and 

 tiou in Bijawurs. quartzite join, masses of each are found enveloped 



by the other, as though the v/hole had been crushed and ground together. 

 At the same time there appears reason for believing that the phenomenon 

 is not confined to this series, but that it is occasionally manifested amongst 

 the lower beds of the overlying Vindhyans.* 



Besides these two kinds of rocks, sandstones, generally argillaceous 

 Other kinds of rock ^""^ ^^^^^ brecciated, frequently with irregular 

 met with. quartzose layers and concretions, slates of various 



kinds, schists, not, however, very distinctly crystallized though completely 

 laminated, and quartzites, are all of more or less frequent occurrence. 

 Clay slate abounds in these rocks near Bagh. Traps also, much cleaved, 

 but still bearing the appearance of interstratification with the other beds, 

 are of occasional occurrence. 



* For this observation I am indebted to my colleague Mr. Mallet as detailed elsewhere. 

 I had not myself clearly traced the breccias in the Vindhyan beds, but although I saw that 

 some breccias, especially those near Andhari Bagh in the Dhar forest, could not clearly be 

 assigned to the Bijawurs, I hesitated to consider them Vindhyans. Mr. Mallet's explanation 

 of the Tawa and Pullasee sections has shown that the Vindhyan beds are probably occasionally 

 brecciated, and as my observations of matters of fact as recorded in my field notes coincide 

 with Mr. Mallet's, I think that he is right in this opinion. 



( 198 ) 



