NERBUDDA DISTRICT. 



115 



Much yet remains to be clone with the fossils thence brought together, 

 and large undescribed collections now exist, from the study of which 

 important information will doubtless be elicited. 



In all the papers published regarding these however, it has never 

 been doubted that they were all derived from deposits of the same age, 

 and it remained for the survey to point out how entirely different in 

 position and period the bone-breccia of Jubbulpur and the bone gravels 

 and clays of the Nerbudda Valley are. 



In the preceding remarks also, a few other points have been noticed 

 in which the results of the detailed examination of the country by 

 the Geological Survey differ materially from all preceding views, — • 

 and the details of these will be found below. The chief points of 

 the difference were first brought forward by Professor Oldham in 1856, 

 and as,' while farther examination has added to the knowledge we 

 then possessed, no material change has been introduced in the clas- 

 sification hitherto proposed, it may be well here simply to state some of 

 the results. 



1st. — The entire group of Sandstones, Shales, &c, of Bnndelcund 

 and Rewah which lie north of the River Nerbudda, (or more correctly 

 of that part of the River Nerbudda included in our map,) the great 

 scarp of which rocks is well seen along that valley as well as 

 that of the Sone, was separated totally from the Sandstone Rocks 

 associated with coal, &c, which occur to the south of those rivers, and 

 with which it had previously been confounded : to this great group 

 the name of Vindhyan was applied, as being best seen in the Vin- 

 dhyan range. The probable cause of that remarkable scarp was also 

 pointed out. 



2nd. — The thick Sandstones of the Mahadeva and Puchmurri Ranges 

 which form such bold escarpments and pointed hills to the south of the 

 river, were also separated from the coal-bearing rocks on which they 

 rest. 



