On the Coal Fields and Coal Production of India. 511 
Xii.—Irxuri* 
This field is situated about 25 miles north-west of Hazaribagh. 
The Barakar coal-measures, which include a few seams of inferior 
coal, are exposed only over half a square mile. The remainder 
of the area is made up by rocks of the Talchir group. 
XITI.— AurunGa.t 
This field is situated in the district of Lohardugga, to the west 
of the sources of the Damuda, in the valley of the Koel, a tribu- 
tary of the Sone. The area is 97 square miles, and the groups 
represented are :-— 
Mahadeva, . : - . 1,000 feet. 
Panchet, : : - - : TOOT; 
Ranigunj, . : é : a OOO, 
Barakar, a : 5 A 5 dlestol0) 
Talchir, . ° . ; : 300 ,, 
3,500 
There are numerous coal seams, some of large size, the estimated 
amount of coal which they contain being 20,000,000 tons. 
The following average proportions of constituents derived from 
the assays of seven samples from different localities indicates a 
very poor quality of fuel. 
Moisture, : 5 - C : 5 EES 
Volatile, ° : : 5 A ee aOses 
Carbon, , : : ‘ ‘ 9. ORES 
Ash, ; > : - ; 6 Bae 
100-0 
Valuable and extensive deposits of iron ores and limestones, 
occurring in and near the coal field, this inferiority of the coal 
is to be lamented, as should a project for manufacturing iron there 
ever be adopted, fuel, it seems probable, will have to be obtained 
from some of the neighbouring fields. 
* Hughes, ‘‘Mem. Geol. Survey of India,” Vol. VIII., p. 321. Manual, p. 197. 
t Ball, “Mem. Geol. Survey of India,” Vol. XV. 
