The mining for mineral resources and the disposal of wastematerials are the
major potential sources of environmental hazard for the deep-seasystem.
Polymetallic nodules, manganese crusts, metalliferous sulphidic muds and
massiveconsolidated sulphides might serve as exploitable sources of various
metals, whilstphosporite deposits represent a further resource. The main types
of waste targeted for de... hiện toàn bộ