- Fig. 1. Fixed sands on the territory of the reserve « Chornye Zemli»
- Fig. 2. Open sands on the territory of the Chernozemelsky district
- Fig. 3. Map of «Chornye zemli» Reserve and «Mekletinsky» Reserve (the figure shows the locations of the above photographs of fixed and open sands)
- Fig. 4. Depressurized oil well of Nadezhda oilfield
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