Records of the Geological Survey of India, Volume 123, Part 1
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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AIRBORNE MINERAL SURVEYS AND EXPLORATION WING 4671
COAL WING 7285
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alignment analysis anomaly assess associated bands bank base basin belt block boreholes carried clay coal Code collected completed comprises construction continued core covered deposits depth detailed developed Director district DIVISION drilling evaluation exploration exposed field flows Formation foundation geological mapping Geologist geophysical geotechnical gneiss gold grade granite Group Headquarters holes identified indicated intrusive investigation length lignite limestone located logging lower magnetic major material mineral mineralisation Nagpur objective occur power house Pradesh prepared present processed proposed quartz quartzite range recorded Regional reported revealed river rock samples sand sandstone scale Scheme schist sediments shale shear Shri slope soil spillway sq km stage strike structure studies suggested surface surveys taken thickness tion Toposheet traverses trending tunnel types units Upper upto values varies various veins zone