TALCHEEE COAL FIELD. 



75 



nothing is accurately known. For comparison we must therefore have 

 „. „ , , recourse to the Nagpur and Damoodah fields, in 



Fields to be compared; ° "^ 



Nagpur and Damoodah. ^oth of wMch WB shall find most interesting points 

 of connexion with the Talcheer district. 



The Nagpur beds deserve the earlier notice at our hands, as they 

 present the greater number of analogies with the strata of Orissa. The 

 distance in a straight Hne from Nagpur to the westernmost edge of the 

 Talcheer basin is about 330 miles ; but according to Messrs. Hislop and 

 Hunter's map, outliers extend for some distance to the East of their 

 field, and these, doubtless, connect the Nagpur with the Gangpur field. 

 The strata of Nagpur are divided by Mr. Hislop into four groups, 

 which evidently from his description, though he 

 does not assert the fact, rest unconformably on each 

 other ; the uppermost bed (especially), a thick ferruginous sandstone,* 

 being stated to contain angular fragments and boulders of the lower 

 beds. It will be useful, and probably sufficient, to present parallel sections, 

 in order to exhibit the homologies of the Nagpur and Orissa strata. 

 To this have been appended the apparent representatives of the beds 

 of the Talcheer basin, which are found in the Damoodah field : — 

 Characters, &c. of the beds of 



Nagpur beds. 



Names proposed. 



Orissa. 



Nagpur (Hislop.) 



Damoodahf" Williams. J 



Mahadewa 

 Group. 



Thick, coarse and 

 false-bedded sandstones 

 and conglomerates fre- 

 quently ferniginous. 



Unfossiliferous. 



Thickness at least 

 2,000 feet. 



Thick ferruginous 

 sandstone of Mahade- 

 wa Hills and Nagpur. 



UnfossUiferous, ex- 

 cept some tree stems. 



Thioknessabout 2,500 

 feet. 



Wanting. (!) 



* Mr. Hislop, in his description, does not appear to have sufficiently distinguished this 

 upper sandstone (of the Mahadewa beds) from the kunkur-yielding alluvium, which seems 

 to compose his upper series at Nagpur. ( Vide Quarterly Journal Geological Society, Vol. II. 

 p. 369.) 



