Vallius, Henry Holocene sedimentary environment and sediment geochemistry of the eastern Gulf of Finland, Baltic sea - Espoo Geological Survey of Finland 2007 - 70 p. ilus., tbls., mapa Subjects--Topical Terms: CONCRECIONGEOLOGIA ECONOMICAGEOLOGIA ESTRUCTURALMETALES PESADOSNODULOS DE MANGANESOPALEOPROTEROZOICOSEDIMENTOS MARINOS Subjects--Geographic Terms: FINLANDIAMAR BALTICO