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A.M. Plyusnin L.V. Zamana S.L. Shvartsev O.G. Tokarenko M.K. Chernyavskii 《Russian Geology and Geophysics》2013,54(5):495-508
The chemical, gas, and isotopic compositions of nitric thermal waters in the Baikal Rift Zone are considered. It is shown that the behavior of sulfate and carbonate ions in hydrothermal systems is different, which indicates that they are of two different origins. The studied thermal waters are of five chemical types formed in different geologic conditions. Special attention is given to the genesis of hydrotherms, the geologic and geomorphologic conditions of their recharge, and their equilibrium with rocks. It has been established that most of chemical elements of the waters migrated from rocks, but a significant portion of them is bound by secondary minerals, which results in their deep differentiation, accumulation, or precipitation. Thus, the so-called redundant elements appear, which were earlier considered to be of mantle origin. 相似文献
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Data are presented on the content of hydrocarbons (HC) relative to the concentrations of particulate matter, lipids, Corg, and chlorophyll a in the surface waters and snow-ice cover of the East Antarctic coastal areas. It was shown that the growth of the concentrations
of aliphatic HC (AHC) to 30 μg/l in the surface waters takes place in the frontal zones and under the young ice formation.
The AHC content in the snow increases with the growth of the aerosol content in the atmosphere. In the lower part of the ice
at the boundary with the seawater, despite the low temperatures, the autochthonous processes may provide high AHC concentrations
(up to 289 μg/l). Within the snow-ice cover on fast ice, synchronous content variations of all the compounds considered take
place. 相似文献
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Water Resources - Forest fires are a significant factor of the hydrological and hydrochemical regime of rivers. Forest-fire statistics and the characteristics of river network were used to choose... 相似文献
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Plyusnin A. M. Ukraintsev A. V. Chernyavskii M. K. Peryazeva E. G. Angakhaeva N. A. 《Water Resources》2021,48(2):273-284
Water Resources - The article considers the conditions under which the water resources and chemistry are forming in the mineral Bormashovoe Lake, which lies on the Svyatoi Nos Peninsula on the... 相似文献
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Based on the relations between the chemical properties of elements, the formation conditions of thermal springs, and the geologic structure of the area, the main factors controlling the geochemistry of local fissure-vein waters were determined. Our results suggest that the most important factors are the temperature gradient and intensity of water exchange, which exert a fluctuating influence on the chemical composition of waters from different parts of the area. The chemical composition of hydrothermal waters provides insight into the geologic evolution of the region and conditions of water-rock interaction. It was shown that hydrochemical parameters can be used to refine the temperature of water heating, to rank springs by the duration of water-rock interaction, to establish the relative age and depth of faults that served as pathways for thermal water discharge, and to determine the geochemical conditions of water migration. The data reported in this paper demonstrate that fault-related mineralization formed during intense volcanic activity at the early stage of Baikal rift development affected the chemical composition of thermal springs. 相似文献
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