Grains of Nonferrous and Noble Metals in Iron–Manganese Formations and Igneous Rocks of Submarine Elevations of the Sea of Japan     

O. N. Kolesnik  N. V. Astakhova 《Oceanology》2018,58(1):71-78

Iron–manganese formations and igneous rocks of submarine elevations in the Sea of Japan contain overlapping mineral phases (grains) with quite identical morphology, localization, and chemical composition. Most of the grains conform to oxides, intermetallic compounds, native elements, sulfides, and sulfates in terms of the set of nonferrous, noble, and certain other metals (Cu, Zn, Sn, Pb, Ni, Mo, Ag, Pd, and Pt). The main conclusion that postvolcanic hydrothermal fluids are the key sources of metals is based upon a comparison of the data of electron microprobe analysis of iron–manganese formations and igneous rocks dredged at the same submarine elevations in the Sea of Japan.  相似文献   

Phosphides in Volcanic Seamount Basalts in the Sea of Japan     

V. T. S”edin  O. N. Kolesnik  E. I. Yaroshchuk 《Lithology and Mineral Resources》2018,53(4):324-328

Electron microprobe data on phosphide grains detected for the first time in basalts from volcanic edifices in the Sea of Japan are presented. The find of phosphides can testify to the endogenic source of phosphorus and, consequently, volcanogenic hydrothermal origin of phosphorites in the Sea of Japan.  相似文献   

A find of an authigenic methane-derived carbonate in the Chukchi Sea     

O. N. Kolesnik  A. N. Kolesnik  B. G. Pokrovskii 《Doklady Earth Sciences》2014,458(1):1168-1170

This report presents data on the chemical, mineral, and isotope composition (δ¹³C and δ¹⁸O) of a large-sized fragment of limestone from the norhteastern part of the Chukchi Sea. It was shown that the formation of the rock is related to the authigenic microbial oxidation of methane. This process is of interest in view of the potential presence of oil and gas in the sedimentary deposits of the northern seas of Russia.  相似文献   

Structure of massive molecular clouds     

L. N. Arshutkin  I. G. Kolesnik 《Astrophysics》1984,21(1):441-450

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Origin and dynamics of expanding neutral hydrogen supershells     

I. G. Kolesnik  S. A. Silich 《Astrophysics》1989,30(2):178-187

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Cooling of dense interstellar clouds by carbon monoxide molecules     

L. N. Arshutkin  I. G. Kolesnik 《Astrophysics》1980,16(4):423-426

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Simulating OH/H₂O formation by solar wind at the lunar surface     

G.G. Managadze  V.T. Cherepin  V.N. Kolesnik 《Icarus》2011,215(1):449-451

We simulate the OH/H₂O production from the action of keV protons on the lunar regolith using a vacuum chamber and a mass analyzer to examine the molecular products released from olivine and SiO₂ powders during their irradiation by deuterium ions. The measured mass spectra, showing the OD/D₂O signature, confirm the possibility of OH/H₂O formation on the lunar surface by solar-wind hydrogen.  相似文献   

Geochemical characteristics of the surface layer of bottom sediments from the Deryugin Basin, Sea of Okhotsk     

V. V. Sattarova  A. S. Astakhov  O. N. Kolesnik 《Geochemistry International》2013,51(6):473-483

This paper reports data, including new analyses, on the contents of Ni, Co, V, Mo, Fe, Mn, Zn, Ba, Sc, Y, Cd, Rb, Cs, and W in the sediments of the Deryugin Basin. The features of the distribution of chemical elements in the bottom area were identified, and the zones of maximum accumulation of the major and trace elements were allocated. A correlation between the elements was shown.  相似文献   

Determination of the sea depth using the light pulse location technique     

A. P. Ivanov  A. I. Kolesnik 《Physical Oceanography》1991,2(2):127-133

Through analysis of the regularities in the signal-to-noise ratio variation we have determined the maximum depths of bottom location using the method of laser sounding, depending on the bottom albedo, the optical properties of the sea-water layer, the characteristics of the radiation source and detector, the magnitude of all types of noise, dark-current noise, Schottky noise, the noise of a light pulse propagation channel, and background noise. Simple formulae have been derived for technological calculations, optimization, and assessment of the efficiency of specific sounding systems.Translated by Vladimir A. Puchkin.  相似文献   

Mineral Grains of Base and Precious Metals in the Surface Layer of Bottom Sediments in the Chukchi Sea     

A. N. Kolesnik  O. N. Kolesnik  A. A. Karabtsov  N. V. Bondarchuk 《Doklady Earth Sciences》2018,481(1):887-892

Data on electron microprobe X-ray analysis of mineral grains of base (Cu, Zn, Sn, Pb, Ni, Bi, and Mo) and precious metals (Ag, Au, Pd, and Pt) detected for the first time in the sediments of the Chukchi Sea are presented. The peculiarities of the morphology and chemical composition of the grains are considered along with their sources and distribution in the sediments.  相似文献