DEEP CRUSTAL STRUCTURE IN NORTHEASTERN EURASIA AND ITS CONTINENTAL MARGINS

The paper reports on the deep geophysical studies performed by Geological Survey of Russia (VSEGEI) under international project – Deep Processes and Metallogeny Northern, Central Eastern Asia. A model crustal structure is represented a set thickness maps 5400-km long geotransect across major tectonic areas Northeastern Eurasia. An area 50000000 km2 digitally mapped in uniform projection. show Moho depths, thicknesses main units (i.e. sedimentary cover consolidated crust), anomalous gravity magnetic fields (in schematic zoning map study area), types crust. gives vertical section crust upper mantle at passive margin Eurasian continent (including submarine uplifts shelf Arctic Ocean) active eastern continental margin, as well an Pacific plate.