MEMOIRS 



GEOLOGICAL SURVEY OF INDIA, 



On the Vindhyan rocks, and their associates in BuNDELCUND, 

 by Henry B. Medlicott, a. b., F. G. S., Professor of Geology in the 

 Thomason College of Civil Engineering, Roorki. 



The survey, of which the following report is an account, was under- 

 taken in the hope of tracing the Vindhyan for- 

 mation continuously along its northern limits from 

 where it is typically known on the table lands of Rewah and Punnah 

 into connexion with the stratified rocks of Gwalior and Delhi to the 

 north-west, and also to examine its relations to the rocks on which it rests 

 or with which it is in contact. 



Touching both these questions I can give some positive answers, that 



are not without interest. This great formation 

 General result. . . . 



exists in unbroken continuity along the entire area 



examined, between Allahabad and Gwalior, unchanged in lithological type 

 or in gisement. For a considerable portion of its boundary it is under- 

 laid by two or more distinct series of sedimentary rocks, of which I have 

 not seen any previous notice in this position, beyond the mere mention 

 of " Kutola iron" and " ferruginous conglomerates at Heerapore." 



The stripe of country to be described is as marked in orographical 



features as in geological structure. The north 

 Contour. 



escarpment of the great Vindhyan table land is 



the guiding line throughout; the area noticed sometimes extending for 



several miles on either side and sometimes being confined to the single 



