Records of the Geological Survey of India, Volume 107The Survey, 1976 - Earthquakes Includes the Annual report of the Geological Survey of India, 1867- |
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Page i
... scale 1 : 253,440 and 80 sq km on scale 1 : 126,720 . The areas covered by larger scales were 1,810 sq km on scale 1 : 31,680 / 25,000 , 65 sq km on scale 1 : 21,120 and 50 sq km on scale 1 : 15,840 . Geomorphological mapping as well as ...
... scale 1 : 253,440 and 80 sq km on scale 1 : 126,720 . The areas covered by larger scales were 1,810 sq km on scale 1 : 31,680 / 25,000 , 65 sq km on scale 1 : 21,120 and 50 sq km on scale 1 : 15,840 . Geomorphological mapping as well as ...
Page 230
... scale and large scale mapping of an area of 0.5 sq km on 1 : 1000 scale was accomplished . The total estimated possible reserves of manganese ore with 25 % to 30 % Mn are of the order of 1,00,000 tonnes . In Chitradurga district , an ...
... scale and large scale mapping of an area of 0.5 sq km on 1 : 1000 scale was accomplished . The total estimated possible reserves of manganese ore with 25 % to 30 % Mn are of the order of 1,00,000 tonnes . In Chitradurga district , an ...
Page 323
... scale mapping on 1 : 2,500 scale and 0.30 sq km of contouring were carried out . 1400 samples were collected for chemical analysis . In this plateau , the average thickness of bauxite is about 2.5 m . overburden of laterite varies from ...
... scale mapping on 1 : 2,500 scale and 0.30 sq km of contouring were carried out . 1400 samples were collected for chemical analysis . In this plateau , the average thickness of bauxite is about 2.5 m . overburden of laterite varies from ...
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amphibolite Andhra Pradesh Archaean bands basalt basin bauxite beds Bihar biotite block boreholes carried chalcopyrite chlorite clay Coalfield conglomerate copper cores Deccan Trap Delhi deposits depth Director district Division dolerite drilling epidote exposed felspar folds formation fossil galena geochemical Geol geological mapping Geological Survey Geologists Jr geophysical Ghosh Glossopteris Glossopteris flora gneiss gneissic complex Gondwana grade grained granite gneiss greenish greenstone belts grey Group hill holes horizon indicated investigation Kashmir Kurnool laterite limestone Lower mapped an area metamorphism mineralisation minerals occur Panjal trap pegmatite phyllite pits Project pyrite quartz quartz veins quartzite Quaternary Rajasthan Raniganj regional river rock types samples sand sandstone Sarvashri scale schist schistose seams sediments shale shear zone Shri Singh Siwalik spillway sq km Srivastava stratigraphic studies sulphide Survey of India thickness traverse trending tunnel unconformity Upper upto valley varies Vindhyan