Records of the Geological Survey of India, Volume 106Geological Survey of India, 1971 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 229
... rock types in the area intruded by quartz and pegmatite bands . The bed rock depth varied from 1.52 m to 4.87 m at the two drill hole locations ( R.D. 7.23 and R. D. 10.25 ) . Fresh rock is available between 10.27 m . and 17.06 m ...
... rock types in the area intruded by quartz and pegmatite bands . The bed rock depth varied from 1.52 m to 4.87 m at the two drill hole locations ( R.D. 7.23 and R. D. 10.25 ) . Fresh rock is available between 10.27 m . and 17.06 m ...
Page 232
... rock types at the proposed dam site having E.-W. strike with northerly dips . Several joint sets have traversed these rock types which are often 1 to 1.5 m open at the surface . The mapping work could not be completed due to tribal ...
... rock types at the proposed dam site having E.-W. strike with northerly dips . Several joint sets have traversed these rock types which are often 1 to 1.5 m open at the surface . The mapping work could not be completed due to tribal ...
Page 350
... rock types belong to Pre - Aravalli age and comprise banded grey and pink biotite gneisses , migmatites and acidic intrusions in the form of quartz veins and pegmatites . The outcrops are quite sparse . Shri A. M. Rakshit covered an ...
... rock types belong to Pre - Aravalli age and comprise banded grey and pink biotite gneisses , migmatites and acidic intrusions in the form of quartz veins and pegmatites . The outcrops are quite sparse . Shri A. M. Rakshit covered an ...
Contents
Volume 106 | 1 |
EASTERN REGION CALCUTTA | 17 |
Publication Division | 50 |
Copyright | |
27 other sections not shown
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Common terms and phrases
alignment alluvium amphibolite Andhra Pradesh anomaly aquifers bands Basin bauxite bed rock Bihar biotite block bore holes boreholes carried charnockite clay coal Coalfield comprising copper covered an area deposits Depth to water dips dist district dolerite dolomite drill holes electrical logging exploration Exploratory drilling folds foliation formation garnetiferous geochemical geohydrological geological investigations geological mapping geophysical gneiss Gondwana grade granite gneiss graphite Groundwater Hazaribagh district Hydel indicated Khondalites laterite limestone located magnetite mapped an area mapped on scale metres mica schist million tonnes mineralised zones minerals nala Orissa pegmatite period under review phyllites pits power house Project pyrite quartzite Rajasthan recommended Region rock types S/Shri sand sandstone Scheme schist seams sediments shales shear zone Sheet Shri sillimanite Siwalik spillway strike length studies Subansiri sulphide Survey of India systematic thickness toposheet total meterage traverse trending tubewells tunnel underlain upto valley varies West Bengal