ASSESSMENT OF POTENTIAL POLLUTION OF THE GEOLOGICAL ENVIRONMENT UPON UNDERGROUND DISPOSAL OF RADIOACTIVE WASTE AT THE "ENISEISKII" SITE IN THE NIZHNEKANSKII MOUNTAIN RANGE (KRASNOYARSK REGION)

V. I. Mal'kovskii* **, A. A. Pek*, A. O. Kochkin*, A. Yu. Ozerskii***

* Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry,
Russian Academy of Sciences, Staromonetnyi per. 35, Moscow, 119017 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.
** Mendeleev University of Chemical Technology of Russia,
Miusskayapi. 9, Moscow, 125047 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.
*** Krasnoyarskaya Mining and Geological Joint-Stock Company, ul. Karla Marksa 62,
Krasnoyarsk, 660049 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

We analyzed safety of radioactive waste (RW) and spent nuclear fuel (SNF) disposal in the underground repository at the site "Eniseiskii" within Nizhnekanskii mountain range. The analysis was carried out on the basis of radioactive pollution simulation in the underground medium after a hypothetic escape of ra-dionuclides from the repository. It is shown that propagation of the pollution with the long-lived isotopes of U, Np, Pu, Am for 1000 years is of the order of 100 m or less, if the influence of colloidal transport of the radionuclides is insignificant. Hence, the hazard of the biosphere pollution with the above-listed radionuclides upon the disposal of RW and SNF in the underground repository at the "Eniseiskiy" site at a depth of about 500 m is low, in case the colloidal transport of radionuclides by groundwater is insignificant.

Key words: radioactive waste, underground repository, groundwater, radionuclide migration, mathematical modeling, colloidal transport.

THE SOIL AND VEGETATION DYNAMICS IN THE PINE-SPRUCE FOREST ECOSYSTEMS (THE SOUTH-WEST OF MOSCOW AREA)

M. V. Arkhipova*, L. B. Isachenkova**

*Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences,
Ulanskii per. 13, bid. 2, Moscow, 101000 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.
**Faculty of Geography, Moscow State University, Leninskie gory, Moscow, 119991 Russia.
E-mail: lb-isachenkova@mail. ru

Forest plantings of different age are studied in the southwest of Moscow area within the moraine plain. The stages of planting development and their specific features are distinguished. The influence of forest cutting and the subsequent spruce planting on the soil-vegetation cover is analyzed. The rate of soil and vegetation rehabilitation after cutting is determined.

Key words: soil and vegetation dynamics, southwestern Moscow area, vegetation succession.

TRANSFORMATION OF PETROLEUM PRODUCTS IN THE GEOLOGICAL ENVIRONMENT UPON CHANGES IN THEIR BITUMEN STATUS (ANTHROPOGENIC ASPECT)

A. P. Khaustov, M. M. Redina

Ecological Faculty, Peoples' Friendship University of Russia, Podolskoe sch. 8/5, Moscow,
117198 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The main problems in geoecological estimation of petroleum products transformation are analyzed taking in account their bitumen status. The four-zone model of oil products distribution is offered considering their transformation in geoenvironment. The non-equilibrium system of "water — rock — oil products (pollutants)" interaction is substantiated, with two genetic branches (abiogenic and biogenic) being distinguished, which form the final effect of pollution. The mechanisms of developing vertical and horizontal geochemical zoning of geological environment are presented. The polycyclic aromatic hydrocarbons are considered as the priority components of pollution.

Keywords: geoenvironment, oil products, pollution, transformation of chemical composition, downward filtration, indication of migrants, polycyclic aromatic hydrocarbons.

MUDFLOW PROCESSES IN THE MZYMTA RIVER BASIN (KRASNAYA POLYANA) AND THEIR IMPACT ON THE TERRITORY OF OLYMPIC CONSTRUCTION

N. A. Kazakov*, Yu. V. Gensiorovskii*, E. N. Kazakova*, G. L. Morozov**

*Sakhalin Branch of Far East Geological Institute, Far East Division, Russian Academy
of Sciences, ul. Gor'kogo 25, Yuzhno-Sakhalinsk, 6930023 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.
** "Inzhzashchita" Co. Ltd., ul. Plastunskaya 202, Sochi, Krasnodar krai, 354003 Russia

The map of mudflow basins is built by the results of field studies conducted by the authors in the Mzymta River basin during the period of 2004-2010. The mudflow characteristics are determined, and the problems in protecting territory and Olympic objects against mudflows are considered.

Key words: mudflow, mudflow process.

ASSESSMENT AND RANKING OF THE OLYMPIC CONSTRUCTION SITES IN SOCHI BY LANDSLIDE HAZARD DEGREE

V. I. Osipov, Yu. A. Mamaev, and A. A. Yastrebov

Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences,
Ulanskiiper. 13, bid.2, Moscow, 101000 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The paper deals with the assessment of engineering geological conditions in the mountainous sites of Olympic construction in Sochi, Adler region including the combined highway and railway route and the construction site of mountain sport structures. The geological history of the area is considered as well as the conditions of formation and stability of modern slopes. The slopes are ranked by the degree of landslide hazard for the purpose of planning and installation of monitoring systems and engineering protection systems at the most hazardous sites.

Key words: river valley and mountain slopes, engineering geological conditions, ranking sites according to landslide hazard, landslide monitoring.

THE ROLE OF PETROLEUM POLLUTION TRANSFORMATION IN CHANGING PROPERTIES OF SEASONAL THAWING AND FREEZING GROUNDS

R. G. Motenko, Yu. A. Nefedyeva

Geological Faculty, Moscow State University, Leninskie gory, Moscow, 119991 Russia.
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

The results of complex experimental studies in thermal, acoustic and electric properties of seasonally thawing and freezing petroleum-contaminated soils of different grain-size as well as the results of the investigation of petroleum structure and properties are considered. The changes in the investigated properties are discussed depending on the duration of petroleum transformation, degree and conditions of pollution, as well as temperature of grounds. The time changes of considered parameters are compared to the petroleum structure; their close interconnection is shown, which was decisive for revealing the role of petroleum transformation in the formation of investigated properties. Proceeding from the results obtained, the predictive calculations were performed for changing the depth of seasonal thawing and freezing for the grounds of different grain size in the European North, Western Siberia and Alaska; taking into account the influence of varying albedo of the surface and thermal properties.

Key words: freezing ground, petroleum pollution, transformation of petroleum, thermal conductivity, specific electric resistance, speed of longitudinal waves, seasonal thawing depth.

INFLUENCE OF MICROSTRUCTURE OF CLAY SOILS OF DIFFERENT ORIGIN ON THEIR DEFORMATION UNDER COMPRESSION AND PLATE LOADING TESTS

L. G. Bulygina*, V. N. Sokolov*, A. G. Koshelev**

* Geological Faculty, Moscow State University, Leninskie gory 1, Moscow, 119991 Russia.
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.
** Moscow Trust for Geological and Geodetic Survey

The paper deals with the influence of microstructure on the deformation properties of clays. The studies were conducted on clays of different age and genesis composing the upper part of the geological section in Moscow. Deformation characteristics were determined using compression and plate loading tests. Samples collected before and after tests allowed us to study the initial microstructure of clay, to trace changes in it, and to identify the main factors controlling the microstructure transformation.

Key words: mocrostructure, clay soil, plate loading test, compression.

APPROACHES TO REGIONAL GEOECOLOGICAL MAPPING

V. G. Zaikanov, T. B. Minakova, and E. V. Buldakova

Sergeev Institute of Environmental Geoscience, Russian Academy of Sciences,
Ulanskii per. 13, bid. 2,Moscow, 101000 Russia. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

Theoretical and methodological fundamentals of regional geoenvironmental mapping are considered. A spatial hierarchy of mapped objects is developed as well as the algorithm of building geoecological maps of the region. Geoecological regions and urbosystems are taken as objects of geoenvironmental mapping to a medium scale. Unified legends for the evaluation (evaluation of engineering-geological conditions, geoecological assessment area) and the advisory maps are proposed. The suggested approach to geoecological mapping is implemented by the example of the Smolensk region.

Key words: geoecological mapping of the region, geosystem approach, consistent mapping, geoecological district, urbogeosystem.