Density Heterogeneities of the European Upper Mantle Inferred from 3-D Large-Scale Gravity Modelling

Autor:	Tamara Yegorova, V. G. Kozlenko, Vitaly Starostenko
Rok vydání:	1997
Předmět:	Lateral variation Gravitational field Density model Crust Sedimentary rock Astrophysics::Earth and Planetary Astrophysics Geophysics Residual Geothermal gradient Geology Mantle (geology) Physics::Geophysics
Zdroj:	Upper Mantle Heterogeneities from Active and Passive Seismology ISBN: 9789048149667
DOI:	10.1007/978-94-015-8979-6_24
Popis:	For Europe the 3-D density model of the Earth’s crust (in one degree averaging) has been constructed. The model is based on generalised velocity model and consists of two regional layers — the sedimentary cover and the crystalline crust with lateral variation of average parameters (velocity and density). Gravity residual anomalies, obtained by subtracting the calculated effect of the model from the observed gravity field, are caused mainly by density heterogeneities of the upper mantle. The mantle origin of the residual anomalies is confirmed by both the information on velocity structure of the upper mantle according to seismotomography study and geothermal data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5d835d46d94de258dc42efaa9ad46cf1 https://doi.org/10.1007/978-94-015-8979-6_24 Zobrazit plný text záznamu