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MINERAL PHYSICS DIVISION
PUBLICATION INFORMATION DIVISION
MAP COMPILATION PUBLICATION INFORMATION DIVISION
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alignment analysed anomaly associated bands bank belt block body boreholes carried Circle clay collected completed comprising construction contain continued core covered deposits depth detailed developed dips Director DISTRICT Division drilling east encountered examined exploration exposed fault field folds Formation foundation Garhwal geological mapping geophysical gneiss grade grained granite grey Group Headquarters holes India indicated investigation Laboratory length limestone located logged lower magnetic major measures mica mineralisation minerals observed occur phyllite pits power house Pradesh prepared present proposed quartz quartzite recommended regional reported river road rock rock types samples sandstone scale Scheme schist seams sediments sericite shale shear sheet Shri slate soil sq km stage strike structure studies suggested surface surveys taken thickness thin tion toposheet trace traverse trending tunnel upper upto valley varying veins West zone