Records of the Geological Survey of India, Volume 131, Part 2The Survey, 1996 - 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 84
... collected along 7 lines in Dungina , Gijari and Chargharey areas , Chhukha Dzongkhag . These samples have analysed 87.74- 99.50 % SiO2 , 0.22-5.86 % Al2O ,, 0.10-1.10 % Fe2O , and less than 0.20-1.67 % CaO + MgO . Seventy samples of ...
... collected along 7 lines in Dungina , Gijari and Chargharey areas , Chhukha Dzongkhag . These samples have analysed 87.74- 99.50 % SiO2 , 0.22-5.86 % Al2O ,, 0.10-1.10 % Fe2O , and less than 0.20-1.67 % CaO + MgO . Seventy samples of ...
Page 98
... collected . In majority of the samples , Au values were found to be less than 0.1 ppm and silver values less than 5 ppm . This year a total of 30 samples were collected and sent for chemical analysis . In the area showing anomalous gold ...
... collected . In majority of the samples , Au values were found to be less than 0.1 ppm and silver values less than 5 ppm . This year a total of 30 samples were collected and sent for chemical analysis . In the area showing anomalous gold ...
Page 240
... collected between 13 ° and 14 ° N lat . and 70 ° 15 ' and 71 ° E long . for Mn - nodules and tephra sequence . 12 gravity cores were collected along three E - W transects . The same were cut , logged and subsampled . In total , 20.33 m ...
... collected between 13 ° and 14 ° N lat . and 70 ° 15 ' and 71 ° E long . for Mn - nodules and tephra sequence . 12 gravity cores were collected along three E - W transects . The same were cut , logged and subsampled . In total , 20.33 m ...
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aerogeophysical aeromagnetic airborne geophysical analysis anomaly assemblage Barakar Barakar coal seams Barakar Formation basin belt Bhutan Bihar biotite block borehole carbonaceous carbonatite carried chlorite clay Coalfield coarse grained Code continued covered Cruise database delineated depth district Division drilling Dzongkhag east eastern exploration for coal faults field season foliation garnet geochemical sampling geological mapping gneiss gold mineralisation Gondwana grade granite granulite grey Ground evaluation Group heavy mineral identified India indicated interpretation intersected investigation isotopic Kamthi layered lignite limestone located Madhya Pradesh mafic magnetic metamorphism multisensor Nagpur district Neoproterozoic occur Orissa OVERVIEW phyllite plagioclase programme quartz quartz veins quartzite Rajasthan range Raniganj Regional exploration sand sandstone scale schist seabed seam zones sections sector sediments sequence shale shallow shear zone shelf Singhbhum Sohagpur sq km studies Sub-project sulphide surface surveys Talchir Formation thickness Toposheet traverse trending ultramafic upto Valley values varying volcanics