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Trace element contents in different types of recent bottom sediments from the...
Trace element contents in different types of recent botoom sediments of the Indian Ocean are given. Sediment samples were obtained during cruises of the P.P. Shirshov Institute... -
Occurrence of interlayers in sediment cores collected in the East Indian Ocean
In the East Indian Ocean direct contribution of land volcanism to sedimentation appears as interlayers of tephra and tuffaceous sediments, pumice fragments, and dispersed... -
Rare earth element contents and sources in phosphorites from Pacific seamounts
Distribution of rare earth elements (REE) was studied in phosphorites collected from seamounts at depths from about 400 to 3600 m. In general phosphorites are characterized by... -
Composition and sorption capacity of oceanic and marine ferromanganese nodules
Experimental data obtained show that oceanic and marine ferromanganese nodules and crusts are natural ion-exchangers. Exchange capacity of oceanic ferromanganese aggregates is... -
Isotope compositions of oxygen and carbon from phosphates and Fe-Mn crusts an...
Results of a study of phosphates collected on Pacific Ocean seamounts using some physicochemical methods are described. Particular attention is paid to isotopic studies of both... -
Chemical composition of Fe-Mn ores from the North Pacific seamounts
Ore crusts from the Mid-Pacific Seamounts were studied by scanning electron microscopy and by atomic-absorption and chemical analysis. Characteristic ultramicroscopic structures... -
Isotopic composition of carbon in organic matter of sediments and particulate...
A study was made of isotopic composition of carbon in lipids found in three samples of separate particulates and in eight bottom sediment samples collected in a from the... -
Contents of 230Th, Fe2O3, MnO and P2O5 in bottom sediments from the Tropical ...
Shape of the 230Th vertical distribution curve ideally close to exponential is studied to determine isotopic age of deep-sea sediments. In practice such ideal 230Th vertical... -
Radiocarbon datings of Upper Quaternary bottom sediments from the Mediterrane...
Bottom sediment samples were collected in the Central Mediterranean, Southern Adriatic, Tyrrhenian, Algerian-Provencal, and Alboran basins of the Mediterranean Sea. Fifty-six... -
Vertical distribution of zooplankton biomass in the Sea of Japan
Vertical distribution of total zooplankton biomass and major taxonomic groups are investigated by layers to depths of 2500-3400 m on the basis of three series of net plankton... -
Contents of P2O5, Corg, Sr, and Ba in phosphorites and host sediments from th...
Sr contents in phosphorites on shelves of the Southwest Africa, and of Chile and Peru increase with degree of their lithification, from 0.05 to 0.28% and from 0.13 to 0.16%... -
Vertical distribution of zooplankton biomass in the Sea of Japan at Station V...
Vertical distribution of common zooplankton species is examined on the base of two series of layer-by-layer net catches down to depth of 3400 m. Differences between the series... -
Chemical composition of organic matter in ocean sediments
Group composition of organic matter in recent ocean sediments with high Corg content has been studied in detail. It has been shown that organic matter in sediments with Corg... -
Abundance and biomass of near-surface ichthioplankton in the Western Pacific
During Cruise 50 of R/V Vityaz ichthyoplankton in surface waters was collected by a neuston otter trawl for many days in four study areas of the Western Tropical Pacific.... -
Concentrations of dissolved organic carbon and particulate organic nitrogen i...
Data are presented on concentration of dissolved organic carbon and particulate organic nitrogen in sea water at four stations, and also of dissolved and particulate amino acids... -
Vertical variations in basic salt composition of interstitial waters from Pac...
Basic chemical composition of interstitial water in sediments of the Northwestern Pacific along a profile from the continental shelf of the Japan Trench to the ocean bed is... -
Vertical distribution of pelagic polychaetes in Kuril-Kamchatka Trench plankt...
Vertical distribution patterns of four mass species of pelagic polychaetes (with separate consideration of the adult, juvenile and larval stages) in plankton of the... -
Composition of organic matter in deep-sea holoturians and host bottom sedimen...
In 5 holothurian species of the Aspidochirota and Elasipoda orders concentration of organic carbon in alimentary canals due to selective feeding on the average is 7 times higher... -
Distribution of and biomass of macroplankton in the West Tropical Pacific
Thirty-five night-time samples were collected with an Isaacs-Kidd trawl at depths ranging from 40 to 1100 m on four fixed-position stations in the western equatorial Pacific.... -
Quartz and opaline silica in ocean sediments
A new method of quantitative analysis of quartz and opal in bottom sediments is developed. It is based on the study of sediment samples in form of suspensions in petrolatum...