Records of the Geological Survey of India, Volume 109The Survey, 1982 - Earthquakes |
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Page 27
DRILLING DIVISION Additional Chief Drilling Engineer : Shri C. P. Chugh A total of 206 rigs were deployed in different parts of the country mainly for exploration of coal , base metals , iron , manganese , bauxite , phosphorite , gold ...
DRILLING DIVISION Additional Chief Drilling Engineer : Shri C. P. Chugh A total of 206 rigs were deployed in different parts of the country mainly for exploration of coal , base metals , iron , manganese , bauxite , phosphorite , gold ...
Page 84
... DRILLING DIVISION Drilling Engineer : Shri R. D. Sinha ( Till 1.3.75 ) Shri Ajit Singh ( since 10.4.75 ) During the period under review , the Division had 22 drilling units including 2 drills fabricated by the Drilling Division , N. R. ...
... DRILLING DIVISION Drilling Engineer : Shri R. D. Sinha ( Till 1.3.75 ) Shri Ajit Singh ( since 10.4.75 ) During the period under review , the Division had 22 drilling units including 2 drills fabricated by the Drilling Division , N. R. ...
Page 23
rock produced during drilling ) can be expected with the return water , if there is no zone of water - loss above the zones of interest and or of the hole is cosed . The core recovery may be improved in the following way : ( a ) By drilling ...
rock produced during drilling ) can be expected with the return water , if there is no zone of water - loss above the zones of interest and or of the hole is cosed . The core recovery may be improved in the following way : ( a ) By drilling ...
Contents
GEOCHRONOLOGY AND ISOTOPE GEOLOGY DIVISION | 6 |
FIELD TECHNIQUE RESEARCH UNIT | 13 |
PUBLICATION DIVISION | 20 |
Copyright | |
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alignment amphibolite Andhra Pradesh axis bands basalt bauxite Bihar biotite block boreholes calcareous carbonatite carried charnockite CIRCLE clay coal comprising core covering an area Deccan Trap deposit depth Director DISTRICT Division dolomite dykes exposed fault folds foliation Formation geochemical geological mapping Geological Survey Geologist Jr geophysical geotechnical investigation gneiss Gondwana grade grained granite gneiss grey Headquarters hills indicated intrusives Jaipur kimberlites laboratory laterite limestone line km located logged Madhya Pradesh magnetite mapped an area metamorphism mineralisation minerals Murthy nala NW-SE occur pegmatite phyllite pits power house Project pyrite quartz quartz veins quartzite Quaternary RAJASTHAN Region river rock types S/Shri samples sand sandstone Sarvashri scale schist schistosity seams sediments shale shear zone Shri Singh Sinha spillway sq km Srivastava strike length stromatolites structure sulphide Super Group Survey of India Tamil Nadu thickness tion Toposheet traverse tremolite trending tunnel upto varies Vindhyan