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alluvium amounted appears Aravalli average bands beds boulders Burma cent Central Chaung clay coal coalfield collected considerable contains continued decrease deposits depth district Ditto east eastern evidence fault feet field figs figure fossils Geol Geological grant hills important increase India iron January less limestone locality lost lower Manganese March Marl material matter miles million minerals Mining moisture Nagpur Nature Nummulitic obtained occur output P. L. renewal places Plate portion possible present probably production Prospecting Provinces Purple Quantity Rajputana range Raniganj recorded regarded reported represented result ridge rocks Salt sand sandstone seams seen shales Sheet shown side similar specific gravity specimens stone suggested surface Survey TABLE thickness thin tons tract Upper valued villages Vindhyan vitrains Waag western