Abstract
Methods and the results of estimating the anomalies characterising the density inhomogeneities in the European-Mediterranean upper mantle are described. These anomalies were obtained by subtracting the gravity effect of a crustal density model derived from seismic velocities from the observed gravity field averaging over an area of 1o × 1o. The 3-D density model of the study region comprises two regional layers of varying thickness with lateral variation of average density: the sedimentary cover and the crystalline crust. The average densities for model layers were evaluated by using a velocity/density conversion function and taking into account sediment consolidation with depth. Clear correlation between residual gravity anomalies and both velocity heterogeneities and thermal regime data of the upper mantle has been revealed. An agreement of positive anomalies over the Alps, the Adriatic plate and the Calabrian Arc with high velocity domains in the upper mantle and reduced temperatures at the subcrustal layer are caused by lithospheric “roots” and thickened lithosphere below these structures. Gravity residual lows, revealed over the Western Mediterranean Basin and Pannonian Basin, are in correspondence with both low velocities and high temperatures in the upper mantle. These anomalies are the result of the presence of asthenosphere in shallow near-Moho depths below these basins.
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References
Artemjev, M. E., Kaban, M. K., Kucherinenko, V. A., Demyanov, G. V., and Taranov, V. A. (1994), Subcrustal Density Inhomogeneities of Northern Eurasia as Derived from the Gravity Data and Isostatic Models of the Lithosphere, Tectonophysics 240, 249–280.
Babuška, V., Plomerová, J., and Pajdušak, P., Lithosphere-asthenosphere in central Europe: Model derived from P residuals. In Proc. of the Fourth EGT Workshop: The Upper Mantle (eds. Nolet, G., andDost, B.) (European Science Foundation, Strasbourg 1988) pp. 37–48.
Babuška, V., Plomerová, J., and Granet, M. (1990), The Deep Lithosphere in the Alps: A Model Inferred from P Residuals, Tectonophysics 176, 137–165.
Babuška, V., and Plomerová, J. (1992), The Lithosphere in Central Europe—Seismological and Penological Aspects, Tectonophysics 207, 141–163.
Belousov, V. V. (1990), Tectonosphere of the Earth: Upper Mantle and Crust Interaction, Tectonophysics 180, 139–183.
Blundell, D., Freeman, R., and Mueller, St. (eds.), A Continent Revealed (Cambridge University Press, Cambridge 1992).
Čermak, V. (1993), Lithopheric Thermal Regime in Europe, Phys. Earth Planet. Inter. 79, 179–193.
Giese, P., and Pavlenkova, N. I. (1988), Structural Maps of the Earth’s Crust in Europe, Izv. AN SSSR, Fizika Zemli 10, 3–14 (in Russian).
Granet, M., and Trampert, J. (1989), Large-scale P-velocity Structures in the Euro-Mediterranean Area, Geophys. J. Int. 99, 583–594.
Granser, H. (1987), Three-dimensional Interpretation of Gravity Data from Sedimentary Basins Using an Exponential Density-depth Function, Geophys. Prospect. 35, 1030–1041.
Hurtig, E., Čermak, V., Haenel, R., and Zui, V. (eds), Geothermal Atlas of Europe (Hermann Haack Verlagsgesellschaft GmbH, Geographisch-Kartographische Anstalt Gotha 1992).
Kinsmann, D. J. J., Rift basins and peculiarities of sediment accumulation in the conditions of sagged margins of continents. In Petroleum and Global Tectonics (eds. Fischer, G., and Judson, S.) (Princeton University Press 1975) pp. 61–91.
Kissling, E. (1993). Deep Structure of the Alps—What Do We Really Know? Phys. Earth Planet. Inter. 79, 87–112.
Lillie, R. J., Bielik, M., Babuška, V., and Plomerová, J. (1994), Gravity Modelling of the Lithosphère in the Eastern Alpine-Western Carpathian-Pannonian Basin Region, Tectonophysics 231, 215–235.
Mueller, St., and Panza, G. F., The lithosphere-asthenospher e system in Europe. In 1st EGT Workshop, the Northern Segment (eds. Galson, D. A., and Mueller, St.) (European Science Foundation, Strasbourg 1984) pp. 23–26.
Podoba, N. V., and Ozerskaya, M. A. (eds.), Physical Properties of Sedimentary Cover of East-European Platform (Nauka, Moscow 1975) (in Russian).
Panza, G. F., and Suhadolc, P. (1990), Properties of the Lithosphere in Collisional Belts in the Mediterranean—A Review, Tectonophysics 182, 39–46.
Rusakov, O. M. (1990), The Thickness and Density of Sedimentary Cover in the Indian Ocean, Geophys. J. 3 (8), 390–399.
Snieder, R. (1988), Large-scale Waveform Inversions of Surface Waves for Lateral Heterogeneity—II: Application to Surface Waves in Europe and Mediterranean, J. Geophys. Res. 93, 12067–12080.
Spakman, W., van der Lee, S., and van der Hilst, R. (1993), Travel-time Tomography of the European-Mediterranean Mantle Down to 1400 km, Phys. Earth Planet. Inter. 79, 3–14.
Starostenko, V. I., and Manukyan, A. G. (1987), Gravimetric Problems for Spherical Celestial Bodies and their Application to the Study of the Nectaris Basin Mascon on the Moon, Boll. Geofis. Teor. Appl. 29(115), 201–219.
Wortel, R., and Spakman, W. (1996), The Geodynamic Evolution of the Alpine-Mediterranean Region: From Structure to Dynamics, Mitteilungen der Gesellschaft der Geologie- und Bergbaustudenten in Österreich 41, 142–143.
Yegorova, T. P., Kozlenko, V. G., Pavlenkova, N. I., and Starostenko, V. I. (1995), 3-D Density Model for the Lithosphere of Europe: Construction Method and Preliminary Results, Geophys. J. Int. 727, 873–892.
Yegorova, T. P., Starostenko, V. I., Kozlenko, V. G., and Pavlenkova, N. I. (1997), Three-dimensional Gravity Modelling the European-Mediterranean Lithosphere, Geophys. J. Int. 129, 355–367.
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Yegorova, T.P., Starostenko, V.I., Kozlenko, V.G. (1998). Large-scale 3-D Gravity Analysis of the Inhomogeneities in the European-Mediterranean Upper Mantle. In: Plomerová, J., Liebermann, R.C., Babuška, V. (eds) Geodynamics of Lithosphere & Earth’s Mantle. Pageoph Topical Volumes. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8777-9_18
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DOI: https://doi.org/10.1007/978-3-0348-8777-9_18
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