Records of the Geological Survey of India, Volume 130, Parts 2-3The Survey, 1995 - 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 29
... values show a range from 2 ° .25 to 1 ° .10 indicative of high grade di- agenetic zone within the depth of 365-485 meters . A definite pattern emerges out of the IC values . From an initial value of 1o6 at 365 metres it increases , with ...
... values show a range from 2 ° .25 to 1 ° .10 indicative of high grade di- agenetic zone within the depth of 365-485 meters . A definite pattern emerges out of the IC values . From an initial value of 1o6 at 365 metres it increases , with ...
Page 24
... values ranging from 50 ppb to 490 ppb . The soil samples from these areas show gold values varying from 50 ppb to 900 ppb . The available PGE analyses of the ultramafics show Pt values ranging from 54 ppb to 157 ppb and Pd values from ...
... values ranging from 50 ppb to 490 ppb . The soil samples from these areas show gold values varying from 50 ppb to 900 ppb . The available PGE analyses of the ultramafics show Pt values ranging from 54 ppb to 157 ppb and Pd values from ...
Page 7
... values are noted in this rock at values higher than the average crustal abundance of these elements in carbonate rocks . yet the values may not be of any economic significance . Pb concentration varies from 30 ppm to 160 ppm and Zn from ...
... values are noted in this rock at values higher than the average crustal abundance of these elements in carbonate rocks . yet the values may not be of any economic significance . Pb concentration varies from 30 ppm to 160 ppm and Zn from ...
Contents
ANTARCTICA DIVISION 5359 | 53 |
BHUTAN UNIT 6079 | 60 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING 80125 | 80 |
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amphibolite analysis Andaman anomaly assemblage bands Barakar Barakar Formation basalt basemetal basin belt Bhutan Bihar biotite block boreholes carried charnockites clay coal seams Coalfield coarse Code covered Deccan Deccan trap deposits depth Director district Division drilling east Eastern fault feldspar field season foliation garnet geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION gneiss gold Gondwana grade grained granite gneiss granitoids granulite grey Group heavy minerals indicated intersected Kamthi lignite limestone lineament lithounits located magnetic metamorphism mica mineralisation occur olivine Orissa OVERVIEW pegmatite petrographic phyllite plagioclase potential present programme Project quartz quartz veins quartzite range Raniganj REGIONAL EXPLORATION river rocks sand sandstone scale schist seabed seam zones sector shale shear zone silty Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment surface Survey of India thickness tion toposheet trending ultramafic upto varies volcanics West Bengal