The Minister of Mines and Minister of Development of North Eastern Region B.K. Handique has said that Geological Survey of India (GSI) is the principal agency for locating or identification of new mineral deposits in the country with a mandate to explore (through ground, airborne, satellite and marine surveys) and scientifically assesses mineral and energy resources. Exploration carried out by GSI in the country has augmented manifold the resources of a number of important minerals like non-coking coal, iron ore, bauxite, gold, basemetal, chromite, platinoid group of elements (PGE), molybdenum, dolomite, limestone, manganese, magnesite, ball clay, bentonite etc.
There is continuous upgradation of technology in GSI, particularly in respect of photogeology and remote sensing work, field survey, ground geophysical survey, aerogeophysical survey, marine survey, drilling operations, laboratory studies & research projects, information technology etc. GSI is developing expertise in magnetotelluric survey and Hyperspectral mapping at present.
In a written reply in the Rajya Sabha, the Minister said, GSI carries out regional exploration for minerals and quantifies the resource of the minerals investigated. Indian Bureau of Mines (IBM) prepares the inventory of mineral reserves of country from its own data and the information made available by Mineral Exploration Corporation Limited, State Directorates of Geology and Mining and other exploration agencies. The reserves of major minerals in India (as on 01.04.2005), (Source: IBM Year Book, 2007) is as under:
|
S.No. |
Ore / Mineral |
Reserve (in million tonnes) |
|
1. |
Copper ore |
369.49 |
|
2. |
Lead-Zinc ore |
125.75 |
|
3. |
Iron ore, Haematite |
7004.016 |
|
4. |
Iron ore, Magnetite |
58.50 |
|
5. |
Manganese ore |
138.15 |
|
6. |
Bauxite |
899.38 |
|
7. |
Limestone |
12715.31 |
|
8. |
Dolomite |
985.15 |
|
9. |
Gold Ore |
19.25 |
|
10. |
Chromite |
66.12 |
|
11. |
Molybdenum |
1.5 |
In additional the Annual Review of GSI (2009) gives the reserves of coal and lignite as under:
|
S. No. |
Ore / Mineral |
Reserve (in million tonnes) |
|
1. |
Coal |
267210 |
|
2. |
Lignite |
39070 |
Source: PIB

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