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The results of seismic surveys held at the geocryological stations Marre-Sale (western Yamal, the summer of 2009). The engineering and permafrost conditions under shallow river and lake are studied. Analysis of the field structure of compression and share SH-waves is completed. It is shown that share refracted SH-waves should be used for displaying the configuration of permafrost table which lay at 5-6 m depth. The salinity of frozen soils could be assessed also using this type of seismic waves