Two genetic types of metal-bearing and ore-bearing sediments formed under the influence of different processes have been identified based on the results of the study of the bottom sediments of hydrothermal fields of the Russian Atlantic exploration area. The 1st type was formed as a result of ore minerals precipitation from the hydrothermal plume, the 2nd type – under the influence of diffuse hydrothermal flows entering the sediments from the substrate rocks. The distinctive features of the two identified genetic types of ore-bearing and metal-bearing sediments formed in different conditions were established: the character of distribution in the section and over the area, mineral and geochemical composition and textural and structural features.
Gablina et al. (Wed,) studied this question.