Part 1 Deep-sea minerals - distribution characteristics and their resource potential.- Deep-sea mining: current status and future considerations.- Composition, formation, and occurrence of polymetallic nodules.- Marine Co-rich Ferromanganese Crust Deposits: Description and Formation, Occurrences and Distribution, Estimated World-wide Resources.- Seafloor Massive Sulfide deposits: distribution and prospecting.- Submarine phosphorites: the deposits...