『Abstract
　The composition of sand-silt and pelite fractions of deep-sea sediments deposited under different hydrodynamic conditions was studied. Assemblages of clastic, clayey, biogenic, and authigenic minerals formed under the influence of surface and bottom currents were traced. It is shown that biogenic opal, fine-dispersed celestobarite, and authigenic protosyngenetic ferromanganese micronodules, which are composed of only manganese phases, represent indicators of cyclonic gyres characterized by enhanced bioproductivity. Collophane (bone detritus), phillipsite, palagonite, and large celestobarite crystals prevail in mineral assemblages below the anticyclonic gyres, whereas ore micronodules are depleted in manganese. Surface and bottom currents control the distribution of clastic (terrigenous edaphogenic, terrestrial-volcanogenic) and clay minerals, as well as biogenic opal in the form of Echmodiscus frustules in sediments. Edaphogenic mineral assemblages represent the reliable indicators of bottom currents.』

(Introduction)
Materials and methods
Brief characteristics of hydrodynamic environments
Mineral composition of the main types of oceanic sediments
Results
　Gyres of oceanic surface currents
　Surface (regional) and deep oceanic currents
　Eastern Indian ocean
　　Composition of the coarse silt fraction of sediments
　　Composition of pelite sediments
　Marginal seas of the west Pacific
　Bottom currents
　Pacific Ocean
　　Site I
　　Site III
　　Site VI
　　Site IX
　　Site X
　Indian Ocean
　　Site X
　　Site XIV
　Atlantic Ocean
　　Site XVIII
Conclusions
Acknowledgments
References