MINISTER OF THE STATE IN THE MINISTRY OF MINES
(SHRI SIS RAM OLA)
(a) : The details of target set and work accomplished for survey work carried out by Geological Survey of India
(GSI) during the last three years is given below:
Target vs. Achievement for the various survey work carried out by GSI for the last three years
Type of Survey F.Y. 2004-05 F.Y. 2005-06 F.Y. 2006-07
Target Achievement. Target Achievement. Target Achievement.
a) Ground Survey
Systematic Geological 360 300 420 550 570 590
Mapping (sq.km) (scale
1:50,000)
Spl. Thematic Mapping 6599.20 6510.50 11549.80 10730 8341 8043
(sq.km.)(scale 1:25,000)
Geochemical Mapping 22731.60 25677.50 23858.60 23848.30 26015.60 24215
(sq.km)(scale 1:50,000)
Geophysical Mapping 16304 16253.50 16054 17863 18012.05 16803
(sq.km) (scale 1:50,000)
Large Scale Mapping 922.14 1041.05 1076.14 1283.92 1508.88 1393.55
(sq.km) (scale 1:10,000-
25,000)
Detailed Mapping 27.24 34.77 32.96 28.84 26.88 31.96
(sq.km) (scale 1:
Drilling(metre) 87129.44 82209.86 85501.43 83708.41 84236.38 70425.55
b) Aerial Survey
Multisensor / 28000 20926 28407 32481 28062 28777
Aeromagnetic Survey
(with Twin Otter)(lkm)
(b) & (c) : GSI estimates mineral resources on the basis of regional surveys. New mineral resources identified
during these surveys are given below:
Gold Ore
Rajasthan :
3.22 million tonnes of gold ore with 2.36 g/t. gold in Bhukia East Block.
11.207 million tonnes of gold ore with 2.10 g/t. gold in Bhukia East Central Block.
2.46 million tonnes of gold ore with 1.83g/t. gold in Bhukia North Central Block.
2.59 million tonnes of gold ore with 1.50 g/t. gold in Bhukia South Central Block.
3.33 million tonnes of gold ore with 1.50 g/t. gold in Timran Mata West Block.
3.6 million tonnes of gold ore with 2.30 g/t. gold in Timran Mata East Block.
12.896 million tonnes of gold ore with 1.65 g/t. gold in Delwara Block.
Jharkhand :
0.40 million tonnes of gold ore with 3.1 g/t. gold in Parasi area, Ranchi.
1.11 million tonnes of gold ore with 2.24 g/t. gold in Parasi area, Ranchi.
0.25 million tonnes of gold ore with 3.85 g/t. gold in Pahardia area, Singhbhum(West)
0.33 million tonnes of gold ore with 3.65 g/t. gold in Pahardia area, Singhbhum(West)
Karnataka:
0.293 million tonnes of gold ore with 2.0 g/t. gold in Ajjanahalli East Block, Tumkur.
Platinum Group of Metals(PGM) :
0.294 million tonnes of PGM ore with average grade of 1.79 ppm in Hanumalapura Block, Davangere district, Karnataka.
Basemetals:
3.2 million tonnes of copper-gold ore with 1.56 ppm gold and 1.09% copper in Dhani Basri area, Dausa district,
Rajasthan.
Manganese :
5.962 million tonnes of ore with averge grade of 27% manganese in Pacheri-Lasarda sector, Keonjhar district, Orissa.
Iron Ore :
20.42 million tonnes of iron ore in Sundargarh district, Orissa.
Coal & Lignite :
Coal resource augmented by 2228.75 million tonnes in the states of West Bengal, Jharkhand, Orissa, Madhya Pradesh,
Chhattisgarh, Maharashtra and Andhra Pradesh. Lignite resources augmented by 417.59 million tonnes in the states
of Tamil Nadu and Rajasthan(upto June 2006).
Clay :
1.9 million tonnes of sedimentary clay and 1.93 million tonnes of residual clay estimated from Klayikode block,
Kasargod district, Kerala.
Limestone :
395.86 million tonnes in Larket Block, Jaintia Hills, Meghalaya
11.59 million tonnes in Jalaphet Block, Jaintia Hills, Meghalaya.
531 million tonnes in Lumshortoh and Um-Maju blocks, Jaintia Hills, Meghalaya
48.33 million tonnes in Vridhhachalam sub-basin, Tamil Nadu.
Graphite :
1.08 million tonnes of graphite in Sivaganga graphite belt, Tamil Nadu.
(d) & (e) : As per Directorate of Geology and Mining(DGM), Rajasthan, problems are being faced in commercial
exploitation of minerals occurring in forest, charagah and khatedari lands. Court decisions on Aravalli Range,
environment and tribal belts besides complex procedures for obtaining various clearances before starting such
ventures are other constraints.
