Records of the Geological Survey of India, Volume 114

alignment analysis anomaly associated bands bank belt block boreholes carried Circle clay collected completed comprising construction continued core covered deposits depth detailed developed dips Director DISTRICT Division drilling east encountered examined exploration exposed fault field folds Formation foundation four Garhwal geological mapping geophysical gneiss grained granite grey Group Headquarters holes included India indicated intruded investigation Laboratory length limestone located logged magnetic major measures mineralisation minerals Nagaur observed occur officers 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 values varying veins zone