34 
BALL AND SIMPSON: COALFIELDS OF INDIA. 
In 1880 Griesbach ^ and a year later Blanford,^ reported on 
inspections of the outcrops. Both observers noted the extreme 
disturbance of the rocks and considered the deposits too poor to 
be workable. The latter states that the principal seam varies from 
two feet four inches to two feet eight inches in thickness. He 
quotes the following analysis : — 
Moisture 10-9 
Volatile matter ..... 33- 1 
Fixed carbon ..... 41-0 
Ash 15-0 
The exposures were again examined in 1890, by R. D. Oldham^ 
who mentions that the Mach mines have been worked fitfully 
for years and measured the following section at a point 2 miles south 
of Mach :— 
Coal 
1' 
3" 
Shale 
1' 
10 
Coal 
0' 
10" 
Strata 
15' 
6 
Coal 
1' 
iir 
Shale 
0' 
3' 
Coal 
0' 
2" 
Strata 
6' 
10 
Coal 
0' 
7" 
Shale 
0' 
6' 
Coal 
0' 
3" 
Shale 
0' 
3' 
Coal 
0' 
10" 
Total coal 
5' 
101 
Analysis of the coal from these seams approximated closely to 
that quoted above. Near the southern end of Bohr hill in a total 
of 3 feet 10 inches of strata, 2 feet 9 inches of coal was measured. 
This coal on analysis yielded 6 per cent, of ash. 
At Digari in the Zharakhu valley, two seams are found. These 
vary in thickness from 2 feet 2 inches to 2 feet 11 inches and 2 feet 
8 inches to 3 feet 3 inches, respectively. At the time of Mr. Oldham's 
visit they had been opened up at intervals over a length of 6,000 
» Mem., Geol. Surv. hid.. Vol. XVITI, 22 (1881). 
2 Rec, Geol. Surv. Ind., Vol. XV, 149 (1882). 
' Report on the Coal Resources of Quetta, etc., Calcutta (1891). 
