carbonate concretes in corchia cave

aragonite artificiallight bedrock buildingmaterial calcite calcium calciumcarbonate carbonate carbonicacid cave cavern caving cement concrete coral crystalform curiousform dissolution eroded erosion foraminifera geologicalfact geology groundwater karst karsticformation lime limestone lit mineral namsongriver nature organicacid potholing rainwater river rockcolumn sedimentary solublerock solutional speleogenesis speleology speleothem spelunking stalactite stalagmite underground water