Summary
Three-dimensional electrical conductivity model for north-central Colorado, USA. Inverse solution was found using ModEM. Inversion methodology described in Murphy et al. (2024). Model regridded to lat/lon. Air cells have log10[conductivity] values of -10.
Quicklinks
Description
| Name | CO-MT |
| Title | Colorado USA 3D Lithospheric Electrical Conductivity Model |
| Type | 3-D Electrical Conductivity Earth Model |
| Units | log10 electrical conductivity, in Seimens/meter |
| Year | 2024 |
| Data Revision | r0.0 (revision history) |
| Short Description | Three-dimensional electrical conductivity model for north-central Colorado, USA. Inverse solution was found using ModEM. Inversion methodology described in Murphy et al. (2024). Model regridded to lat/lon. Air cells have log10[conductivity] values of -10. |
| Authors: | Benjamin S. Murphy, Geological Hazards Science Center, Geomagnetism Program, U.S. Geological Survey, Golden, CO, 80401, USA [now at Murphy Geo Consulting, LLC] Jonathan Saul Caine, Geology, Geophysics, and Geochemistry Science Center, U.S. Geological Survey, Denver, Colorado 80225, USA Paul A. Bedrosian, Geology, Geophysics, and Geochemistry Science Center, U.S. Geological Survey, Denver, Colorado 80225, USA Jade W. Crosbie, Geology, Geophysics, and Geochemistry Science Center, U.S. Geological Survey, Denver, Colorado 80225, USA |
| Reference Model | N/A |
| Prior Model | None |
| Inversion Software | Modular System for Electromagnetic Inversion, Egbert and Kelbert (2012) |
| Model Download | CO.MT.Murphyetal2024.conductivity.r0.0.nc (see metadata) is the model in netCDF 3 Classic format. CO-MT.ModelBundle.zip is the model in its original format |
| Model Home Page | None |
| Depth Coverage | 4 km above sea level to 200 km below sea level |
| Area | North-central Colorado, USA (38.32° to 40.34° latitude, -106.92° to -104.32° longitude) |
| Data Set Description | Model created by inverting full impedance tensors and vertical magnetic field transfer functions (period range ~ 0.01 – 10000 s) from 81 broadband and long-period MT stations across north-central Colorado, USA. |
Citations and DOIs
To cite the original work behind this Earth model:
- Murphy, B.S., Caine, J.S., Bedrosian, P.A., and Crosbie, J.W. (2024). Geoelectric evidence for a wide spatial footprint of active extension in central Colorado. Geology 52(4): 314-318. https://doi.org/10.1130/G51517.1
To cite IRIS DMC Data Products effort:
- Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, https://doi.org/10.1785/0220120032.
DOI for this EMC webpage: https://doi.org/10.17611/dp/emc.2024.comtmurphy.1
References
- Gary D. Egbert, Anna Kelbert, Computational recipes for electromagnetic inverse problems, Geophysical Journal International, Volume 189, Issue 1, April 2012, Pages 251–267, https://doi.org/10.1111/j.1365-246X.2011.05347.x
Credits
- r0.0 model provided by Benjamin S. Murphy.
Revision History
revision r0.0: uploaded October 1, 2024.
Timeline
- 2024-10-02
- r0.0 online
