Records of the Geological Survey of India, Volume 127, Parts 3-4Includes the "Annual report of the Geological Survey of India," 1867- |
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active Aizawl anomaly associated bands bank base basemetal basin belt Bengal Bihar block bodies boreholes carried channel clay Code collected complex construction continued covered deposits depth detailed district Division drilling east Eastern Engineering exploration exposed extension faults field season flood folds Formation foundation further GEOLOGICAL MAP geophysical geotechnical gneiss gold grade grained granite grey Group hill INDEX indicated island limestone located lower major mineral mineralisation nature occur Operation Orissa phyllite places plain Plate Pleistocene potential present Project proposed quartz quartzite Quaternary recorded regional represented river road rocks samples sand sandstone scale schist sector sediments sequence sericite shale Shear Zone Singhbhum slope soil sq km stage strike structures suggested surface surveys taken thick tion traverses trending tunnel units upper values veins volcanics West