96 READER : REPORT ON THE RAMPUR COAL-FIELD. 



the borehole into three equal lengths, the following 

 table shows the gradation ; — ■ 



■ 



Top Length. 



Middle 



Length. 



Bottom 

 Length. 



Argillaceous, arenaceous shales .... 



% 

 60 



40 







% 

 54 







46 



% 



22 

 5 



73 





100 



100 



100 



All the boreholes which have been put down to test 

 this Field were started in this division of the Barakars, 

 except perhaps Nos. 1, 2a 3 and 4 of Dr. King and No. 1 

 of the Bengal-Nagpur Railway Company. The bore- 

 hole 828J feet deep put down near Dhoramuda during 

 1 899 was started near the top of this zone, and I think 

 the one put down during 1896 and 1897 near Kodopali 

 (485') proves practically the bottom part. 



To judge lrom all the data at present to hand, this 

 zone would appear to be about 1,600 to 1,700 feet thick ; 

 it will be seen then that so far as these two boreholes 

 (the Kodopali and Dhoramuda) are concerned there 

 appears still to remain from 500 feet to 600 feet of this 

 division to be proved. Horizontal section A will ex- 

 plain this better. 



The sections of the two boreholes above referred to 

 are appended and give in greater detail the succession 

 of the rocks composing this division. 



The above division of Barakars includes in its lower 

 part the seam of carbonaceous shale and coal exposed 

 near Durlipali and also ''the tesselated ironstone bed " 

 of Dr. Ball exposed a littls higher in the section. 

 Where exposed and weathered this ironstone bed is at 

 once recognised. Dr. Ball identified it at Chuakani, 

 about five miles north-notth-east of Durlipali. The 



