AFRP22 Tomographic Model & MTZ Receiver Functions: Data, Software, Plotting

AFRP22 (Boyce et al., 2023), is an adaptively parameterized, absolute P-wave tomographic model for Africa provided with and without crustal correction. Also provided is mantle transition zone Receiver Functions for new stations in the Turkana Depression (data embargo lifted 2024-05-24).

Citation:

Boyce, A., Kounoudis, R., Bastow, I. D., Cottaar, S., Ebinger, C. J., Ogden, C. S. Mantle Wavespeed and Discontinuity Structure below East Africa: Implications for Cenozoic Hotspot Tectonism and the Development of the Turkana Depression (under revision) Geochemistry, Geophysics, Geosystems.

This repository accompanies the publication of the tomographic model on the IRIS-EMC that can be found here: https://ds.iris.edu/ds/products/emc-afrp22/ or with the following doi: https://doi.org/10.17611/dp/emc.2023.afrp22.1. Please find AFRP22 and its related files for a detailed description of the distributed model.

The AFRP22_RFs_SHARE.tar repository contains:

• Plotting: Codes and necessary files to reproduce figures in main manuscript.
• tomography
  • Tomography_AFRP22: Implementation of MIT inversion algorithm used to produce AFRP22 including formatted data.
  • Raw_data: Hand-picked and processed seismic data (.SAC) from new African seismic networks.
  • Original_documentation: Documentation for original distribution of inversion code from MIT global seismology group 
• receiver_functions
  • Processing codes (SMURFPy) already available at doi: 10.5281/zenodo.4337257
  • Raw_data - Data files for P, PP and PKP RFs, CCP stacked volumes produced by SMURFPy code and picked discontinuity files

The following authors contributed to this work:

A. Boyce: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
R. Kounoudis: Department of Earth Science and Engineering, Royal School of Mines, Prince Consort Road, Imperial College London, London, UK.
I. D. Bastow: Department of Earth Science and Engineering, Royal School of Mines, Prince Consort Road, Imperial College London, London, UK.
S. Cottaar: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
C. J. Ebinger: Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA 70118, USA.
C. S. Ogden: School of Geography and Geology, University of Leicester, Leicester, LE1 7RH, UK.