underwater mineral resources [ marine granulate | mining of the sea-bed | phosphorite | polymetallic nodule | Marine mining(STW) | marine sediments(UNBIS) ]
Meeresbodenschätze [ Manganknolle | Meeresgranulat | Phosphorit | unterseeische Ressourcen | unterseeisches Sulfid | unterseeische Zinnlagerstätte ]
52 ENVIRONMENT | MT 5211 natural environment | BT1 natural resources | RT exploitation of the sea-bed [5206] | mineral prospecting [6611] | offshore drilling [6616]
52 UMWELT | MT 5211 Natürliche Umgebung | BT1 natürliche Ressourcen | RT Nutzung des Meeresbodens [5206] | Offshore-Bohrung [6616] | Schürfung [6611]