The polygenous nature of the Patyn ore—magmatic cluster (Mountainous Shoriya)     

E. V. Belyaev 《Doklady Earth Sciences》2010,435(1):1420-1422

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Bottom bituminous constructions and biota inhabiting them according to investigation of Lake Baikal with the Mir submersible     

O. M. Khlystov  T. I. Zemskaya  T. Ya. Sitnikova  I. V. Mekhanikova  I. A. Kaigorodova  A. G. Gorshkov  O. A. Timoshkin  O. V. Shubenkova  S. M. Chernitsyna  A. V. Lomakina  A. V. Likhoshvai  A. M. Sagalevich  V. I. Moskvin  V. I. Peresypkin  N. A. Belyaev  M. V. Slipenchuk  A. K. Tulokhonov  M. A. Grachev 《Doklady Earth Sciences》2009,429(1):1333-1336

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Problems in determining spatial inhomogeneity of <Superscript>137</Superscript>Cs fallout for estimating rates of erosion-accumulative processes     

V. N. Golosov  M. V. Markelov  V. R. Belyaev  O. M. Zhukova 《Russian Meteorology and Hydrology》2008,33(4):217-227

The issues of assessing variability of ¹³⁷Cs fallout of global and Chernobyl origin at reference sites are discussed with a purpose to use this isotope as a tracer for estimating the rates of erosion-accumulative processes. It is shown that local variability of soil contamination by ¹³⁷Cs at reference sites is within 7–20%, which makes it possible to use the isotope as a tracer. When studies are conducted within drainage basins, the available trend of the atmospheric ¹³⁷Cs fallout should be taken into account in assessing the soil and sedimentation redistribution.  相似文献   

Spatial variability of concentrations of chlorophyll <Emphasis Type="Italic">a</Emphasis>, dissolved organic matter and suspended particles in the surface layer of the Kara Sea in September 2011 from lidar data     

V. V. Pelevin  P. O. Zavjalov  N. A. Belyaev  B. V. Konovalov  M. D. Kravchishina  S. A. Mosharov 《Oceanology》2017,57(1):165-173

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Assessment of groundwater inflow in urban territories     

A. Yu. Belyaev  R. G. Dzhamalov  Yu. A. Medovar  I. O. Yushmanov 《Water Resources》2007,34(5):496-500

Analytical and numerical methods are proposed for the calculation of water inflow into construction pits under various geological—engineering and hydrogeological conditions at the construction site. Water inflow into the pit is shown to depend not only on lateral seepage but also on the leakage from underlying aquifers at appropriate parameters of their interaction. Under certain natural conditions, the most efficient method for construction pit draining at low water yield of soils in the construction area are light wellpoint systems, the capacity and layout of which is determined by the potential inflow through the pit contour. The results of analytical and numerical calculations for the assessment of groundwater inflow into a pit are given, and light wellpoint systems are shown to be effective under different combinations of natural and engineering conditions.  相似文献   

Self-potential anomalies in Cerro de Pasco and Hualgayoc areas (Peru) revisited     

D.S. Vagshal  S.D. Belyaev 《Geophysical Prospecting》2001,49(1):151-154

Self-potential anomalies with unexplained high values have been observed in various places. Such anomalies were reported in Peru more than 30 years ago. An explanation is proposed based on the electrokinetic effect obtained when a topographic high occurs above a rock layer through which water filtrates and which itself lies over a highly resistive layer. In such a case a fairly high self-potential may occur. Conversely, when one of these conditions is not met, the self-potential anomaly at the earth's surface resulting from the electrokinetic effect is strongly attenuated.  相似文献   

Some experience in unraveling geochemical earthquake precursors     

V. L. Barsukov  V. S. Serebrennikov  A. A. Belyaev  Yu. A. Bakaldin  R. V. Arsenyeva 《Pure and Applied Geophysics》1984,122(2-4):157-163

The discrimination of significant earthquake precursors from background noise is treated as a multistep problem of pattern recognition. Statistical characteristics of helium-content recorded in short time intervals are used as informative parameters. The set of calculated characteristics includes estimations of the mean, the variance, and the results of spectral analysis of the investigated time series. The selection of significant parameters and the rigorous estimations of time shifts between geochemical and seismic series are carried out by analyzing their cross-covariance function. It is established that the most informative characteristics of a hydrothermal system are related to the dynamic fluctuations of the geochemical parameters. The final phase of prediction is based on the application of a method of statistical discovery of images. A method of earthquake-time prediction is suggested. By using this method, we may determine the 10-day interval during which an earthquake may occur two months in advance. The prediction may be improved by increasing the frequency of sampling and by improving the precision of analytical measurements, both of which can be achieved by automation of monitoring devices. Deployment of uniform monitoring networks is needed in regions designated for special prediction tasks.  相似文献   

Chlorophyll, primary production, fluxes, and balance of organic carbon in the Laptev Sea     

A. A. Vetrov  E. A. Romankevich  N. A. Belyaev 《Geochemistry International》2008,46(10):1055-1063

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Lignin as an indicator of the sedimentation conditions on the Arctic shelf     

A. S. Ulyantsev  E. A. Romankevich  V. I. Peresypkin  N. A. Belyaev  I. P. Semiletov  S. Yu. Bratskaya  A. A. Vetrov  V. I. Sergienko 《Doklady Earth Sciences》2016,467(1):264-269

It is shown for the first time that the proportion of lignin in shelf deposits may range from 1/3 to the total concentration of organic carbon. The distribution of wood residues and lignin in the studied sedimentary formation is very uneven, which reflects the dynamic flux environment of sedimentation and OM supply. The calculated molecular indexes showed that most of the OM in deposits underwent insignificant diagenetic alterations.  相似文献   

Contemporary condition of macrozoobenthos in ultrashallow zone of Taman Bay,Sea of Azov     

V. A. Spiridonov  G. A. Kolyuchkina  N. A. Belyaev  A. B. Basin  V. V. Kozlovsky 《Oceanology》2016,56(2):248-258

The distribution of macrozoobenthic communities was studied in a vast ultrashallow (0–1.2 m deep) zone of northwestern Taman Bay (separated from the Kerch Strait by Chushka spit) in 2008–2009. Fifty-two species of benthic invertebrates were recorded. The species number, as well as Shannon and Pielou diversity indices, increased along Chushka spit from base to tip. The usual inhabitants of lagoons and estuaries of the Mediterranean Basin and the open Sea of Azov dominated in benthic communities: mollusks Abra segmentum and Hydrobia acuta and polychaetes Heteromastus filiformis and Hediste diversicolor (the latter only in summer). Changes in the community structure were largely determined by the seasonal dynamics of dominant species populations, which was similar to their dynamics in certainother transitional water bodies of the Mediterranean Basin. These changes indicate normal running of seasonal processes in the macrobenthic communities of Taman Bay in 2008 rather than the consequences of a catastrophic black oil spill in the Kerch Strait in November 2007.  相似文献