CAP22 Tomographic model: Data, Software, Plotting

CAP22 (Boyce et al., 2023), is an absolute P-wavespeed tomographic model with focus on North American, specifically Canadian and Alaskan, mantle structure, provided with and without crustal correction.

Please cite the following work when using this data set:

Boyce, A., Liddell, M. V., Pugh, S., Brown, J., McMurchie, E., Parsons, A., Estève, C., Burdick, S., Darbyshire, F. A., Cottaar, S. Bastow, I. D., Schaeffer, A. J., Audet, P., Schutt, D. L., Aster, R. C. (2023). A new P-wave tomographic model (CAP22) for North America: Implications for the subduction and cratonic metasomatic modification history of western Canada and Alaska. Journal of Geophysical Research: Solid Earth, 128, e2022JB025745. https://doi.org/10.1029/2022JB025745

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-cap22/ or with the following doi: 10.17611/dp/emc.2023.cap22.1. Please find CAP22 and its related files for a detailed description of the distributed model.

The CAP22_TOMO_SHARE.tar repository contains:

Raw_data: Hand-picked and processed seismic data (.SAC) from western Canada and Alaskan seismic networks.

Original_documentation: Documentation for original distribution of inversion code from MIT global seismology group.

Tomography_CAP22: Implementation of MIT inversion algorithm used to produce CAP22 including formatted data.

Plotting: Codes and necessary files to reproduce figures in main manuscript.

The following authors contributed to this work:

A. Boyce: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
M. V. Liddell: Centre de recherche Geotop, Université du Québec à Montréal, QC, Canada.
S. Pugh: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
J. Brown: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
E. McMurchie: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
A. Parsons: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
C. Estève: Department of Meteorology and Geophysics, University of Vienna, Vienna, Austria.
S. Burdick: Wayne State University, Geology Department, Detroit, MI, USA.
F. A. Darbyshire: Centre de recherche Geotop, Université du Québec à Montréal, QC, Canada.
S. Cottaar: University of Cambridge, Department of Earth Science, Bullard Laboratories, Madingley Road, Cambridge, UK.
I. D. Bastow: Department of Earth Science and Engineering, Royal School of Mines, Prince Consort Road, Imperial College London, London, UK.
A. J. Schaeffer: Geological Survey of Canada Pacific Division, Sidney, BC, Canada.
P. Audet: University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada.
D. L. Schutt: Colorado State University, Department of Geosciences and Warner College of Natural Resources, Fort Collins, CO, USA.
R. C. Aster: Colorado State University, Department of Geosciences and Warner College of Natural Resources, Fort Collins, CO, USA.