Records of the Geological Survey of India, Volume 105The Survey, 1973 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
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Page 172
... boreholes , about 30 m . to the north of first series of five boreholes drilled earlier , was drilled to intersect the mineralised zone located by the first set of boreholes at greater depths , of 50 m . , vertically below the surface ...
... boreholes , about 30 m . to the north of first series of five boreholes drilled earlier , was drilled to intersect the mineralised zone located by the first set of boreholes at greater depths , of 50 m . , vertically below the surface ...
Page 259
... boreholes intersected good mineralisation of chalcopyrite upto a vertical depth of 80 m . In the Southwest block , three boreholes were drilled to test the I. P. geophysical anomaly in zones of old copper workings . One of the boreholes ...
... boreholes intersected good mineralisation of chalcopyrite upto a vertical depth of 80 m . In the Southwest block , three boreholes were drilled to test the I. P. geophysical anomaly in zones of old copper workings . One of the boreholes ...
Page 262
... boreholes . The boreholes located mostly along the margins of the plateau have not intersected any bauxite / aluminous laterite . Pitting to a maximum depth of 2.00 m alternating with the boreholes amounted to 38.67 cu m in 10 pits ...
... boreholes . The boreholes located mostly along the margins of the plateau have not intersected any bauxite / aluminous laterite . Pitting to a maximum depth of 2.00 m alternating with the boreholes amounted to 38.67 cu m in 10 pits ...
Contents
CENTRAL HEADQUARTERS | 1 |
NORTHERN REGION | 46 |
ORGANISATIONAL SET UP | 437 |
Copyright | |
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alignment alluvium amphibolite Andaman Andhra Pradesh anorthosites Archaean bands Baratang basalt basin bauxite beds Bihar biotite boreholes Carboniferous carried charnockite Circle clay coal coalfield conglomerate copper Deccan Trap deposits depth to water dips Director district Division dolerite dolomite drill holes dykes exploration exploratory exposed folds foliation Formation fossils garnetiferous geochemical geohydrological geological mapping Geological Survey Geologists Jr geophysical gneisses Gondwana grade grained granite groundwater Group horizon indicated investigation island Kashmir km on scale Laboratory laterite limestone located logging Madhya Pradesh mapped an area mapped on scale metres million tonnes mineral mineralisation nala occur pegmatite phosphorite phyllite pits Project pyrite quartz veins quartzite Rajasthan regional river rock types samples sandstone Sarvashri schist seams sediments shales Sharma shear zones Shri Singh slate spillway sq km strike length studies Survey of India thickness tion topo-sheets traversed trend tunnel ultrabasic Upper upto valley varies