The structure of Moho topography for Russia, the adjoining regions and seas.

The uniform schema of Moxo topography for Russia, the adjoining regions and seas was formed<br>on the base of seismic data generalization. It shows the common regularity of deep peculiarity for the major<br>geological structures. The maximum earth crust thickness is marked in the areas of Uralide-Mongolian<br>orogen (more than 50 km) on the one hand, and the shields of the ancient platform (56-66 km) on another.<br>The crust thickness of the ancient platforms in a whole is nearly 38-44 km, for the West Siberian basin it<br>decreases to 32-36 km, in the modern shelf regions it is 24-32 km and at last in the ocean part - 15-22 km.