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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Sajan sarthak Best Answer
FORMATION IS A LITHOSTRATIGRAPHIC UNIT AND IS MAPPED IN TOPOSHEET SCALE THAT IS; 1: 50000 MEANS 1CM ON MAP WILL BE 50000 CM ON GROUND OR .5 KM ON GROUND. SOME MORE INFORMATION BELOW