(Table 1) Chemical element contents in ferromanganese encrustations from the Sierra Leone Rise

A detailed study of chemical and mineral compositions of ferromanganese encrustations indicated that their variability dependent on composition of host substrate and on geological and oceanological processes.

针对铁锰结壳（ferromanganese encrustations）的化学与矿物组成开展的详细研究表明，其组分变异性取决于宿主基底的组成以及地质与海洋学过程。