2026-05-28T03:06:24Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:72222021-10-22T19:22:11ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.2.4.2021.007 Eshetu, Addis Addis Eshetu Addis Ababa University, Addis Ababa, Ethiopia Mammo, Tilahun Tilahun Mammo Addis Ababa University, Addis Ababa, Ethiopia Tilmann, Frederik Frederik Tilmann 0000-0002-7439-8782 GFZ German Research Centre for Geosciences, Potsdam, Germany GFZ Data Services 2021 Crustal structure Main Ethiopian rift Afar hierarchical Bayesian ambient noise tomography Shear wave velocity EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS Eshetu, Addis Addis Ababa University, Addis Ababa, Ethiopia Tilmann, Frederik GFZ German Research Centre for Geosciences, Potsdam, Germany Dataset 10.1007/s00024-021-02880-2 10.1785/0120050077 CC BY 4.0 The Ethiopian rift is a unique natural environment to study the different stages of evolution from initial continental rifting to embryonic sea-floor spreading. We study the crust and uppermost mantle of the Afar, Main Ethiopian Rift and the adjoining plateaus using hierarchical Bayesian ambient seismic noise tomography. A shear wave velocity model of the crust is produced based on the point-wise linearized inversion of the dispersion curves extracted from the group velocity maps.

This dataset provides 3-D shear velocity results from Eshetu et al. (2021).

The file “3dmod.dat” contains the shear wave velocity model for the Ethiopian rift, sampled onto a regular grid. Poorly imaged cells are set to “nan”, see the main text for details. Note that the model primarly resolves S wave structure (Vs). P wave velocity (Vp) is not independently constrained but, during the inversion, calculated from Vs using empirical relations (Brocher, 2005).

Ethiopian rift 36.5 43 6 15