Articles | Volume 12, issue 3
Research article
19 Mar 2021
Research article |  | 19 Mar 2021

Gravity effect of Alpine slab segments based on geophysical and petrological modelling

Maximilian Lowe, Jörg Ebbing, Amr El-Sharkawy, and Thomas Meier

Data sets

ETOP01 1 arc-minute global reliefmodel: Procedures, data sources and analysis C. Amante and B. W. Eakins

The combined global gravity field model XGM2019e P. Zingerle, R. Pail, T. Gruber, and X. Oikonomidou

The Slab Puzzle of the Alpine-Mediterranean Region: Insights from a new, High-Resolution, Shear-Wave Velocity Model of the Upper Mantle A. El-Sharkawy, T. Meier, S. Lebedev, J. Behrmann, M. Hamada, L. Cristiano, C. Weidle, and D. Köhn

The Moho depth map of the European Plate M. Grad, T. Tiira, and ESCWorking Group

Satellite gravity gradient grids for geophysics J. Bouman, J. Ebbing, M. Fuchs, J. Sebera, V. Lieb, W. Szwillus, R. Haagmans, and P. Novak

Model code and software

tesseroids: Forwardmodeling gravitational fields in spherical coordinates L. Uieda, V. C. Barbosa, and C. Braitenberg

LitMod3D: An interactive 3-D software to model the thermal, compositional, density, seismological, and rheological structure of the lithosphere and sublithospheric upper mantle J. Fullea, J. C. Afonso, J. A. D. Connolly, M. Fernandez, D. García-Castellanos, and H. Zeyen

The GMT/MATLAB Toolbox P. Wessel and J. F. Luis

Short summary
This study estimates the gravitational contribution from subcrustal density heterogeneities interpreted as subducting lithosphere beneath the Alps to the gravity field. We showed that those heterogeneities contribute up to 40 mGal of gravitational signal. Such density variations are often not accounted for in Alpine lithospheric models. We demonstrate that future studies should account for subcrustal density variations to provide a meaningful representation of the complex geodynamic Alpine area.