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Geological mapping of Lingtse granitoid gneisses of Sikkim with special reference to their
Quaternary geological and geomorphological mapping of the KosiGandak Interfluve
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alignment associated axis bands bank basin belt Bihar blocks bodies carried channel clay Code collected complex construction covered deposits depth detailed district drilling Eastern Engineering Geology exposed EXTENDED fall fault feasibility FIELD SEASON folds Formation foundation geological mapping Geology Division geophysical gneiss grade granite grey Group grouting hill holes indicate irrigation joints length located lower major measures mica mineral mineralisation nature objective observed occur Operations Orissa pegmatite places Pleistocene present proposed quartz quartzite ranging recorded Regional REPORTS reservoir river rock samples sand sandstone scale scheme schist sediments shale shear zone Singhbhum slope Special Investigation spillway sq km stage stage geotechnical investigation structure suggested surface Survey taken traverses trending tunnel types units Upper values varies veins West Bengal zone