The paper discusses the structural-morphological characteristics of the ore horizon of the Buranny site of the Tomtor deposit (Arctic Siberia). At the base of the ore layer, the Northern and Southern depressions are established, separated by a linear elevation of sublatitudinal strike. In the Northern Depression, the pools of two submeridional structures are completely filled with ore material, and the pools of the third are partially filled. The pools of the sublatitudinal structure of the Southern Depression are partially filled with ore material. All pools are additionally filled with Permian coarse coal-bearing sediments. Differentiation of REE2O3 and Y2O3 within the ore layer is observed. The proportion (%) of Y2O3 from the sum of REE2O3+Y2O3 (YREE+Y) varies from 0.86 to 21%. Maximum values are observed at the saddles of the base of the ore layer, in local depressions of saddles or at the edges of pools. Ores with high YREE+Y values contain authigenic phosphates of both LREE and Y; the content of MREE and HREE increases in such ores. It is assumed that fluctuations in Eh-pH parameters during the accumulation of ore matter led to the fractionation of rare earth elements.

In this work the use of GIS and RS methods for construction of map-scheme of forest stands of the central siberian botanic garden SB RAS territory by relative content of coniferouse and deciduous trees is considered. In the study the spaсe images of high resolution QuickBird of summer and autumn seasons is used. The resulted map-scheme of forest stands of CSBG SB RAS allowed to give the quantitative estimation of coniferouse and deciduous trees ratio.

In this work the use of methods of GIS and RS for monitoring of change of lakes and solonchaks areas is considered. In the study the data of land observation and space images of middle resolution (Landsdat, SPOT) of period 1989-2008 is used. The developed complex technology on the basis of GIS and RS allows to pass from qualitative to quantitative estimation of key parameters changes in ecosystems. The derived results shows the perspective of RS data using for monitoring the processes, caused by humidity dynamics on the Western Siberia south.