Seismic Density Model of the White Sea’s Crust
| Autor: | Michail Nilov, Lyubov Bakunovich, Boris Belashev, Nikolai Sharov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
White Sea
010504 meteorology & atmospheric sciences lcsh:QE1-996.5 Crust Geophysics Geodynamics software complex “Integro” 010502 geochemistry & geophysics 01 natural sciences lcsh:Geology Depth sounding Discontinuity (geotechnical engineering) Gravitational field Magmatism earth’s crust seismic velocity layers General Earth and Planetary Sciences Fennoscandian Shield M-discontinuity velocity and density models Structure of the Earth Kimberlite Geology 0105 earth and related environmental sciences |
| Zdroj: | Geosciences Volume 10 Issue 12 Geosciences, Vol 10, Iss 492, p 492 (2020) |
| ISSN: | 2076-3263 |
| Popis: | Study of the deep structure of the White Sea region is relevant to active geodynamics, manifestations of kimberlite magmatism, and the prospects of oil and gas searches. The aim of this work was to model the velocity and density structure of the earth&rsquo s crust in the White Sea region. Modelling was carried out using the known data of instrumental observations and the software complex &ldquo Integro&rdquo With the help of 2D models based on deep seismic sounding (DSS) profiles and a digital map of the anomalous gravity field, the density structures of local areas of the region&rsquo s crust were refined. A 3D density model was built. Within the framework of this model, the positions of the density layers were determined. The relief of the Mohorovichich (Moho or M) discontinuity reflects the anomalies of the gravity field. Depression of the Moho boundary in the bottleneck of the White Sea indicates the vertical structure of the earth&rsquo s crust associated with manifestations of kimberlite magmatism. |
| Databáze: | OpenAIRE |
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