Data Services Products: EMC-OIINK_CUS_Moho2017 Moho depth and the thickness of crystalline crust within the central United States derived from teleseismic P-wave receiver functions

Summary

The model Moho depth values for the entire central United States are based on common conversion point (CCP) stacking of teleseismic P-wave receiver functions calculated from data recorded by USArray stations and other permanent deployments in the central United States. In the OIINK network footprint, there is a refined Moho depth model using the OIINK Flexible Array stations and other regional stations.

Description

Name OIINK_CUS_Moho2017
Title Moho depth and crystalline crustal thickness values within the central United States derived from receiver function observations
Type Crustal thicknesses
Sub Type
Year 2017
Short Description   The model Moho depth values for the entire central United States are based on common conversion point (CCP) stacking of teleseismic P-wave receiver functions calculated from data recorded by USArray stations and other permanent deployments in the central United States. In the OIINK network footprint, there is a refined Moho depth model using the OIINK Flexible Array stations and other regional stations.
Authors:  
Xiaotao Yang
Department of Geosciences, University of Massachusetts
233 Morrill Science Center
627 North Pleasant Street
Amherst, MA 01003, USA
email: xiaotaoyang@umass.edu
Previous Model NA
Reference Model NA
Model Download The picked Moho surface depth and thickness of the crystalline crust from CUS CCP results:
CUS_Moho_2017.nc (see metadata ), is the netCDF file for the model
The original files in text format(CUS_crystallinecrust_thickness.txt & CUS_Moho.txt
The picked Moho surface depth and thickness of the crystalline crust from OIINK CCP results:
OIINK_Moho_2017.nc (see metadata ), is the netCDF file for the model

The original files in text format(OIINK_crystallinecrust_thickness.txt & OIINK_Moho.txt
Original Model Repository http://onlinelibrary.wiley.com/doi/10.1002/2017JB014150/epdf
Depth Coverage
Areal Coverage Central United States (latitude: 33°/43°; longitude: -96°/-80.8°)
 
Data Set Description This model includes Moho depths in two scales: the entire Central United States (CUS) and the footprint of the OIINK network. The Moho depths are extracted from the image volumes of P-to-S receiver functions using 3-D common conversion point (CCP) stacking for the CUS region, and the advanced Plane-Wave Migration (PWMIG) for the OIINK area within the broader CUS region. 291,020 and 179,244 receiver functions in the central United States are used in generating the images for the CUS area and the OIINK area, respectively. The crystalline crustal thickness values are derived by subtracting the top Phanerozoic sedimentary layers from the Moho depth (see Yang et al., 2017 for details). The CUS Moho depths range from 33.7 km to 66.9 km and the OIINK Moho depths range from 41 km to 65.4 km. The crystalline crustal thickness ranges from 32.5 km to 61.4 km in the CUS area and from 36.6 km to 63.5 km in the OIINK footprint region. Animations of the image volumes with the extracted Moho are available as supplements for Yang et al. [2017].
 
Supplemental Information
 

Moho depth maps the NSF funded EarthScope OIINK
Moho depth maps the NSF funded EarthScope OIINK (Ozark, Illinois, Indiana and Kentucky) project,
showing the strongly varied crustal thicknesses in the south-central Illinois Basin region.
(a) Plane-Wave Migration result using OIINK P-wave receiver functions. (b) Common Conversion Point
stacking result using P-wave receiver functions recorded by other regional networks. See Figure 2 in
the main text for names (abbreviations) and locations of major structures.

Citations and DOIs

To cite the original work behind this Earth model:

  • Yang, X., G. L. Pavlis, M. W. Hamburger, S. Marshak, H. Gilbert, J. Rupp, T. H., Larson, C. Chen, and N. S. Carpenter (2017), Detailed crustal thickness variations beneath the Illinois Basin area: Implications for crustal evolution of the midcontinent, J. Geophys. Res. Solid Earth, 122, 6323–6345, https://doi.org/10.1002/2017JB014150.

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:

Credits

Model provided by Xiaotao Yang

Timeline

2017-12-20
online

Categories

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