Memoirs of the Geological Survey of India

abundant alluvial alluvium Ammonites appear Arrialoor beds Arrialoor group Baculites bands bank Baramahal Belemnites bottom beds boulder-bed boundary calcareous Cauvery clay coarse Coleroon Conchifera conglomerate coral coral-reef limestone Cretaceous rocks Cuddalore sandstones Cullygoody denudation deposits described East Eastward exposed extent fauna feet ferruginous Forbes formation fossiliferous fossils fragments Garoodamungalum Geological gneiss granite grits hill hornblendic India Inoceramus intercalated irregular kunkur laterite latter lime limestone lower beds Madras magnesite magnetic iron mass metamorphic rocks miles mineral character neighbourhood Neocomian nodules North North-east Northern nullah numerous occur Ootatoor beds Ootatoor Group out-crop pebbles plant-beds Pondicherry probably quartz red soil regur resembling ridge river Salem sand sandy schist sedimentary seen shales shells Shevaroys similar South Arcot South-east Southern species specimens stone surface Tanjore tank Terany thickness Trichinopoly beds Trichinopoly district Trichinopoly group Trivicary Turritella unconformity upper valley Valudayur veins Vellaur Verdachellum village