INVENTORY OF GEOLOGICAL RESOURCES OF COAL IN INDIA
As a result of exploration carried out up to the maximum depth of 1200m by the GSI, CMPDI, SCCL and MECL etc, a cumulative total of 285862.21 Million Tonnes of Geological Resources of Coal have so far been estimated in the country as on 1.4.2011. The details of state-wise geological resources of coal are given as under:
(A) : GONDWANA COALFIELDS :-
(in Million Tonnes)
State |
Geological Resources of Coal |
Proved |
Indicated |
Inferred |
Total |
Andhra Pradesh |
9296.85 |
9728.37 |
3029.36 |
22054.58 |
Assam |
0 |
2.79 |
0 |
2.79 |
Bihar |
0 |
0 |
160 |
160 |
Chhattisgarh |
12878.99 |
32390.38 |
4010.88 |
49280.25 |
Jharkhand |
39760.73 |
32591.56 |
6583.69 |
78935.98 |
Madhya Pradesh |
8871.31 |
12191.72 |
2062.70 |
23125.73 |
Maharashtra |
5489.61 |
3094.29 |
1949.51 |
10533.41 |
Orissa |
24491.71 |
33986.96 |
10680.21 |
69158.88 |
Sikkim |
0 |
58.25 |
42.98 |
101.23 |
Uttar Pradesh |
866.05 |
195.75 |
0 |
1061.80 |
West Bengal |
11752.54 |
13131.69 |
5070.69 |
29954.92 |
Total |
113407.79 |
137371.76 |
33590.02 |
284369.57 |
(B) : TERTIARY COALFIELDS :-
(in Million Tonnes)
State |
Geological Resources of Coal |
Proved |
Indicated |
Inferred
(Exploration) |
Inferred (Mapping) |
Total |
Arunachal Pradesh |
31.23 |
40.11 |
12.89 |
6.00 |
90.23 |
Assam |
464.78 |
42.72 |
0.50 |
2.52 |
510.52 |
Meghalaya |
89.04 |
16.51 |
27.58 |
443.35 |
576.48 |
Nagaland |
8.76 |
0 |
8.60 |
298.05 |
315.41 |
Total |
593.81 |
99.34 |
49.57 |
749.92 |
1492.64 |
(Source: Geological Survey of India)
CATEGORIZATION OF RESOURCES :-
The coal resources of India are available in older Gondwana Formations of peninsular India and younger Tertiary formations of north-eastern region. Based on the results of Regional/ Promotional Exploration, where the boreholes are normally placed 1-2 Km apart, the resources are classified into ‘Indicated’ or ‘Inferred’ category. Subsequent Detailed Exploration in selected blocks, where boreholes are less than 400 meter apart, upgrades the resources into more reliable ‘Proved’ category. The Formation-wise and Category-wise coal resources of India as on 1.4.2010 are given in table below:
(in Million Tonnes)
Formation |
Proved |
Indicated |
Inferred |
Total |
Gondwana Coals |
113407.79 |
137371.76 |
33590.02 |
284369.57 |
Tertiary Coals |
593.81 |
99.34 |
799.49* |
1492.64 |
Total |
114001.60 |
137471.10 |
34389.51 |
285862.21 |
* Includes 749.92 M.T. of Inferred resources established through mapping in North-Eastern region.
TYPE AND CATEGORY-WISE COAL RESOURCES OF INDIA :-
The Type and Category-wise coal resources of India as on 1.4.2011 are given in table below :-
(in Million Tonnes)
Type of Coal |
Proved |
Indicated |
Inferred |
Total |
(A) Coking :- |
-Prime Coking |
4614.35 |
698.71 |
0 |
5313.06 |
-Medium Coking |
12572.52 |
12001.32 |
1880.23 |
26454.07 |
-Semi-Coking |
482.16 |
1003.29 |
221.68 |
1707.13 |
Sub-Total Coking |
17669.03 |
13703.32 |
2101.91 |
33474.26 |
(B) Non-Coking:- |
95738.76 |
12368.44 |
31488.11 |
250895.31 |
(C) Tertiary Coal |
593.81 |
99.34 |
799.49* |
1492.64 |
Grand Total |
114001.60 |
137471.10 |
34389.51 |
285862.21 |
* Includes 749.92 M.T. of Inferred resources established through mapping in North-Eastern region.
Status of Coal Resources in India during Last Five Years:
As a result of Regional, Promotional and Detailed Exploration by GSI, CMPDI and SCCL etc, the estimation of coal resources of India has reached to 267.21 Bt. The estimates of coal resources in the country during last 5 years are given below:
(in Million Tonnes)
As on |
Geological Resources of Coal |
|
Proved |
Indicated |
Inferred |
Total |
1.1.2006 |
95866 |
119769 |
37666 |
253301 |
1.4.2007 |
99060 |
120177 |
38144 |
257381 |
1.4.2008 |
101829 |
124216 |
38490 |
264535 |
1.4.2009 |
105820 |
123470 |
37920 |
267210 |
1.4.2010 |
109798 |
130654 |
36358 |
276810 |
|