Вестник Кольского научного центра РАН. 2012, №2.

V.G. Dvoretsky, A.G. Dvoretsky COPEPOD DISTRIBUTION IN THE COASTAL ZONE OF THE BARENTS SEA, SPRING 2007 Spatial distribution of the copepods in southern part of the Barents Sea was investigated during the spring period 2007. A total of 19 copepod species were documented, their abundance and biomass varied from 635 to 1815 ind m-3 (55-75% of the total mesozooplankton abundance) and from 49 to 151 mg wet mass m-3 (39-91%). Copepoda nauplii (136-753 ind. m-3) prevailed in term of total abundance but Calanus finmarchicus predominated the biomass (29-129 mg m-3, 65-85%). Zoogeographical and ecological compositions of copepod community were analyzed. Herbivorous species prevailed the trophic structure (87% of total copepod biomass). Biodiversity of copepod community was 1.52-2.17 bit ind-1. Increased quantity of the copepod species was due to anomalous warm conditions of period studied. Keywords: zooplankton, copepods, Barents Sea. A.I. Kalashnik, S.V. Kazachkov, V.A. Soharev, D.V. Zaporojets, A.Yu. Dyakov RESEARCHES OF MINING DESIGNS OF AN OPEN-CAST MINE BY GEORADAR TECHNOLOGIES For the decision of a problem of maintenance of stability of the mining designs, playing major role in questions of efficiency and safety of working out of mineral deposits, georadar technologies have been used. The special technique of carrying out has been developed for these purposes field and calculate works. It has allowed to receive the information (new knowledge) on a current condition and structure of mining designs of one of deep ore open-cast mines of Kola peninsula. In work are resulted received radarogramms with interpretation and the analysis of the received data on localisation geological structures and zones of tectonic infringements. Features of a condition of the file, consisting in formation subparallel to the general contour of career dredging of zones by capacity to 4 -5 m, 10-20 m and 20 -60 m caused in various parametres of an is intense-deformed condition, fracturing and fluiding are revealed. The revealed features develop modern representations about a condition of files of breeds in a vicinity of career dredging and give possibility for the forecast of stability both separate ledges, and sites of a board of an open-cast mine, and a substantiation of parametres of conducting the mountain works providing their higher safety and efficiency. Keywords: georadar, technologies, a technique, mining constructions, structure, a condition, dispositions, stability, safety. N.E. Koroleva 100 YEAR OF GEOBOTANICAL EXPLORATION OF MURMANSK REGION: SOME RESULTS AND PERSPECTIVES History and progress of geobotany in Murmansk Region are surveyed, with attention to modern regional trends. Problems of practical application of modern geobotanical investigations are analyzed. Importance of regional development and teaching of geobotany on biological faculties is emphasized. Keywords: geobotany, phytocoenology, vegetation science, ecological expertise, Kol’skaja encyclopedia, history o f science, high school teaching, Murmansk Region. N.E. Koroleva S0R0YA ISLAND (FINNMARK COUNTY, NORTHERN NORWAY) AS AN ARENA OF INTERNATIONAL COOPERATION FOR ENVIRONMENTAL STUDY AND PROTECTION Plant communities’ types of S 0 r 0 ya Island (northern Norway) are surveyed as a base for environmental and ecological tours. Keywords: S 0 r 0 ya Island, northern Scandinavia, types o f plant communities, mountain tundra, subarctic birch forest, meadows, wetlands, seashore vegetation, guide-books, ecological tourism. E.D. Tereshchenko, A.E. Sidorenko and V.F. Grigoriev VARIATIONS OF THE ARTIFICIAL ELF ELECTROMAGNETIC FIELD OBSERVED IN THE TRANSITION ZONE The results of the experiment to study the dynamics of the electromagnetic field of artificial source ELF-range during period of 30 days are presented. Variations of the field with periods of several hours to several days are found. Observations during the sidereal period of the Moon show that field variations are in­ phase with the tidal deformations of the Earth's crust along a vertical axis. These variations have considerably higher amplitude than daily variations and may be associated with large-scale tidal processes occurring in the Earth's crust. Field variations with periods of less than a day are most likely caused by ionospheric processes. Keywords: electromagnetic field, artificial source, extremely low frequency, field variations, impedance, tidal deformations, ionosphere. 101