Summary
The Shear wave velocities are derived from Rayleigh wave phase velocities recorded by the OIINK Flex Array and Transportable Array stations in the central United States
Quicklinks
Description
| Name | OIINK_VS_model |
| Title | Shear velocity structure beneath the central United States |
| Type | shear wave velocities |
| Sub Type | |
| Year | 2016 |
| Short Description | Shear wave velocities derived from Rayleigh wave phase velocities recorded by the OIINK Flex Array and Transportable Array stations in the central United States. |
| Authors: | |
| Chen Chen | |
| Department of Earth, Atmospheric, and Planetary Sciences | |
| Purdue University | |
| West Lafayette, Indiana, 47907, USA | |
| Previous Model | NA |
| Reference Model | NA |
| Model Download | oiink-VSVPRHO-model.nc (see metadata ), is the netCDF file for the model OIINK_VS_model.txt is the text file of the Vs model. This file has a header line with the following values: min lat, max lat, dlat, min long, max long, dlong then each data point after that line has these values: grid point longitude, latitude number of depth layers for model at grid point (# of layers) thickness of layer #1, Vs, Vp, and density thickness of layer #2, Vs, Vp, and density … … … |
| Depth Coverage | 0 – 410 km |
| Area | central United States (latitude: 30.0/46.0; longitude: -103/-75) |
| Data Set Description | (see Chen et al., 2016) Shear wave velocities determined by inverting phase velocities of fundamental model Rayleigh waves. Absolute shear wave velocities are included in km/s for the crust and upper mantle of the region. Relatively high crustal shear velocities characterize the southern Illinois Basin and may correspond to high-density mafic intrusions that were emplaced during the development of the Reelfoot Rift. This model also exhibits low upper mantle velocities beneath the New Madrid seismic zone compared to those outside of the rift. The extent of reduced upper mantle velocities also extends beneath the Wabash Valley and Ste. Genevieve seismic zones. |
| Supplemental Information | |
Citations and DOIs
To cite the original work behind this Earth model:
- Chen, C., H. Gilbert, C. Andronicos, M. W. Hamburger, T. Larson, S. Marshak, G. L. Pavlis, and X. Yan (2016), Shear velocity structure beneath the central United States: implications for the origin of the Illinois Basin and intraplate seismicity, Geochem. Geophys. Geosyst., 17, https://doi.org/10.1002/2015GC006206.
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:
References
- Chen, C., H. Gilbert, C. Andronicos, M. W. Hamburger, T. Larson, S. Marshak, G. L. Pavlis, and X. Yan (2016), Shear velocity structure beneath the central United States: implications for the origin of the Illinois Basin and intraplate seismicity, Geochem. Geophys. Geosyst., 17, https://doi.org/10.1002/2015GC006206.
Credits
Model provided by Hersh J. Gilbert
Timeline
- 2016-07-11
- online
