Records of the Geological Survey of India, Volume 121, 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 EXPLORATION WING
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alignment analysis anomaly arca assess associated bands base basin belt block boreholes carried clay coal collected completed comprises construction continued core covered deposits depth detailed Director district DIVISION drilling east ECONOMIC Engineer evaluation exploration exposed extension field flows Formation foundation geological mapping Geologist Jr Geologist Sr geophysical geotechnical gneiss gold grade granite Group Headquarters identified India indicated investigation laboratory length lignite limestone located logging Lower magnetic major measures mineral mineralisation Nagpur objective occur Operation period Pradesh prepared present programme proposed quartz quartzite Quaternary range recorded Regional reports river rocks S/Shri samples sand sandstone scale Scheme schist seams sediments shale Shri sq km stage strike structure studies suggested surface surveys taken thickness toposheet traverse trending tunnel types units upto values various varying West zone