DEEP CRUSTAL STRUCTURE IN NORTHEASTERN EURASIA AND ITS CONTINENTAL MARGINS
| Autor: | I. Yu. Vinokurov, Oleg Petrov, Sergey Kashubin, O. A. Tarasova, Evgeniia D. Milshtein, S. P. Shokalsky, E. A. Androsov |
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| Rok vydání: | 2021 |
| Předmět: |
010504 meteorology & atmospheric sciences
deep seismic sounding Science 010502 geochemistry & geophysics 01 natural sciences Gravity anomaly Metallogeny moho boundary Paleontology Continental margin Passive margin gravity anomaly 0105 earth and related environmental sciences Earth-Surface Processes transitional Pacific Plate consolidated crust Continental crust continental crust Crust sedimentary cover geotransect Tectonics Geophysics continent-ocean transition zone oceanic Geology |
| Zdroj: | Geodinamika i Tektonofizika, Vol 12, Iss 2, Pp 199-224 (2021) |
| ISSN: | 2078-502X |
| Popis: | The paper reports on the deep geophysical studies performed by the Geological Survey of Russia (VSEGEI) under the international project – Deep Processes and Metallogeny of Northern, Central and Eastern Asia. A model of the deep crustal structure is represented by a set of crustal thickness maps and a 5400-km long geotransect across the major tectonic areas of Northeastern Eurasia. An area of 50000000 km2 is digitally mapped in the uniform projection. The maps show the Moho depths, thicknesses of the main crustal units (i.e. the sedimentary cover and the consolidated crust), anomalous gravity and magnetic fields (in a schematic zoning map of the study area), and types of the crust. The geotransect gives the vertical section of the crust and upper mantle at the passive margin of the Eurasian continent (including submarine uplifts and shelf areas of the Arctic Ocean) and the active eastern continental margin, as well as an area of the Pacific plate. |
| Databáze: | OpenAIRE |
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