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 168
... copper in Hitku ( 22 ° 43 ′ : 86 ° 15 ′ ) area , where about 0.55 sq km was mapped ( 1 : 2000 ) and 691.13 m drilled in 4 holes . The copper mineralisation is confined to chlorite schist permeated by vein quartz and the mineralised zone ...
... copper in Hitku ( 22 ° 43 ′ : 86 ° 15 ′ ) area , where about 0.55 sq km was mapped ( 1 : 2000 ) and 691.13 m drilled in 4 holes . The copper mineralisation is confined to chlorite schist permeated by vein quartz and the mineralised zone ...
Page 273
... copper in Nalla- deshwar ( 27 ° 25 ′ : 76 ° 27 ′ ) area , by mapping an area of 0.62 sq km on 1 : 1000 scale in the old mines area . 153 bed rock samples were collected and 70 cu m of pitting and trenching were achieved . The rock types ...
... copper in Nalla- deshwar ( 27 ° 25 ′ : 76 ° 27 ′ ) area , by mapping an area of 0.62 sq km on 1 : 1000 scale in the old mines area . 153 bed rock samples were collected and 70 cu m of pitting and trenching were achieved . The rock types ...
Page 317
... copper in the altered trap rock occurring just below sand , gravel and alluvium . The concentration of native copper in a few pieces was high . Two boreholes , totalling 160.50 m , were drilled to collect samples for geological studies ...
... copper in the altered trap rock occurring just below sand , gravel and alluvium . The concentration of native copper in a few pieces was high . Two boreholes , totalling 160.50 m , were drilled to collect samples for geological studies ...
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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