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POSTGLACITAL MOTIONS AND GRAVITY FIELD VARIATIONS WITHIN THE BALTIC SHIELD
- Authors: Steblov G.M.1,2, Melnik G.E.1,2,3, Pogorelov V.V.2
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Affiliations:
- Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences
- Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences
- Public law company “Roskadastr”
- Issue: Vol 525, No 1 (2025)
- Pages: 127–134
- Section: GEOPHYSICS
- Submitted: 26.12.2025
- Published: 15.11.2024
- URL: https://ogarev-online.ru/2686-7397/article/view/362866
- DOI: https://doi.org/10.7868/S303450652510147
- ID: 362866
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Abstract
The vertical crustal displacements and temporal variations of the gravity field within the Baltic Shield are considered based on a joint analysis of observations from global navigation satellite systems and data from the GRACE/ GRACE-FO satellite missions. An increased rate of gravity anomalies variations versus crustal uplift rate is noted in the zone of junction of the Baltic Shield with the Russian Plate compared to the central part of Scandinavia. This feature is associated with the difference in geodynamic settings: a band of lateral compression in the junction zone, as opposed to extension in the central region of the Scandinavian Peninsula. For excess gravity anomalies, quantitative estimates are proposed based on the modeled lateral compression of the lithospheric layer in accordance with the horizontal velocities of the Earth’s surface motions based on available GNSS data.
About the authors
G. M. Steblov
Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences; Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences
Email: steblov@mitp.ru
Moscow, Russia
G. E. Melnik
Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences; Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences; Public law company “Roskadastr”Moscow, Russia
V. V. Pogorelov
Schmidt Institute of Physics of the Earth of the Russian Academy of SciencesMoscow, Russia
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