510 Scientific Proceedings, Royal Dublin Socrety. 
IX. AND X.—KARANPURA NORTH AND SOUTH.* 
These fields are situated at the head of the Damuda valley. 
Their areas respectively are 472 and 72 square miles. 
The groups occuring are the same as in the Bokaro field, save 
that in the southern tield there has been no trace of Panchets yet 
discovered :— 
Mahadeva, . : - z - 3800 feet. 
Panchet, : : : . rae 
Ranigunj, ‘ : : : C Go ae 
Tronstone shale 5 ; : 5 B00) 45 
Barakar, j : 3 ; 5 U0!) 55 
Talchir, 5 ‘ 5 5 - 400 ,, 
The following is an assay of a sample of the better class of 
coals in these fields :— 
Carbon, a : 5 ; s . 64°5 
Volatile, . : : : ; . 27-0 
Ash, : é O 0 C ge 
100:0 
The estimated amounts of coal are, for the larger field (North 
Karanpura), 8,750,000,000 tons, the estimated total thickness of 
seams being 38 feet. In the South Karanpura field the estimated 
amount is 75,000,000 tons, the thickness being 70 feet. 
The situation of these fields in a deep valley surrounded by 
hills, renders it improbable that this vast amount of coal will ever 
become available for economic purposes. 
XI—CHopE.t 
This isa small field of less than one square mile in extent. 
The chief point of interest about it is its position, which is on 
the Hazaribagh plateau, at an elevation of about 2,000 feet above 
the sea, or nearly 1,000 above the nearest fields in the valley of 
the Damuda. 
The groups represented are the Barakar and Talchir. 
There is only one seam of coal, and it is of poor quality. 
* Hughes, ‘Mem. Geol. Survey of India,” Vol. VIJ. Manual pp. 191-196. 
{t Ball, “Mem. Geol. Surv. India,” Vol. VIII. Manual p. 196. 
