78 



TALCHEEK COAL FIELD. 



in character for from 400 to 500 miles to the East of Nagpur ; their 

 extension to the West in the Nerbudda valley having been long known. 



Further let us consider the relations of the Orissa strata with those 

 of the Damoodah valley, as described by Mr. Williams. 



And here, too, some most interesting connexions may be discovered, 

 although it does not appear certain that any representatives of the upper 

 grits are seen in the Damoodah Coal Fields. It is evident that the 

 middle group is there far more developed than in Orissa, and there are 

 imquestionable representatives of the lower beds of Talcheer. 



Mr. Williams has arranged the strata of the Damoodah or Burdwan Coal 

 Field in three divisions, without very clearly specifying on what grounds, 

 but apparently from some supposed relations to the upper and lower 

 measures, and the millstone grit of the South Wales field. At the bottom 

 of his lowest division, he gives the following section *: — 



No. of Bed. 



Mineral Character. 



Thickness. 



139 

 140 



A bed of inferior coal 

 A grey argillaceous shale 



Feet. Inches. 

 15 

 26 



141 



[ White and light grey sandstone conglo- 1 

 <. merate, containing boulders of white > 

 I quartz of 12 inches in diameter ) 



325 



142 

 143 



( Greenish-grey argillaceous shale, alternating 

 1 with thm heds of sandstone 



I Greenish-grey argillaceous shale, containing 1 

 \ large concretions of limestone. ] 



200 

 153 



From want of more exact knowledge of these two lowest beds, it is 

 impossible to say whether they are the true representatives of the lower 

 shales, sandstones, &c. of the Talcheer field ; but as they agree with them 

 in position and mineral character, it is at least highly probable that they 

 are the same beds. 



* Vide Geological Report on the Damoodah valley, by D. H. Williams, Esq., pp. 73 and 74. 



