Kalyagin, A N; Tishchenko, P Ya; Gukov, Aleksander Yu; Volkova, T L; Kurilenko, L N; Chichkin, R V(PANGAEA, 2001-05-30)
In sediments of the Laptev Sea unknown earlier ferromanganese manifestations have been found. On the basis of structural-textural external signs they have been divided to five groups: 1) tube- and spindle-shaped pseudomorphs ...