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  1. National-Scale Geophysical, Geologic, and Mineral Resource Data and Grids for the United States, Canada, and Australia: Data in Support of the Tri-National Critical Minerals Mapping Initiative
  2. [Geophysical Data] Depth to Moho GeoTIFF grids for the United States, Canada, and Australia

[Geophysical Data] Depth to Moho GeoTIFF grids for the United States, Canada, and Australia

Dates

Publication Date
Start Date
2011-01-01
End Date
2019-12-31

Citation

McCafferty, A.E., San Juan, C.A., Lawley, C.J.M., Graham, G.E., Gadd, M.G., Huston, D.L., Kelley, K.D., Paradis, S., Peter, J.M., and Czarnota, K., 2023, National-scale geophysical, geologic, and mineral resource data and grids for the United States, Canada, and Australia: Data in support of the tri-national Critical Minerals Mapping Initiative: U.S. Geological Survey data release, https://doi.org/10.5066/P970GDD5.

Summary

The Mohorovicic discontinuity or 'Moho' maps the boundary between the earth's crust and mantle and is defined by an abrupt change in seismic velocity due to changes in the density of rocks between the crust and mantle. GeoTIFF grids that map depth to Moho (crustal thickness) for the United States and Canada, and for Australia are provided in this report and were used as evidential layers in developing prospectivity models for basin-hosted Pb-Zn mineralization (Lawley and others, 2022). A composite grid of Moho depths across the United States and Canada was created using data from Shen and Ritzwoller (2016) for the conterminous United States, from Zhang and others (2019) for Alaska, and from Schetselaar and Snyder (2017) for Canada. [...]

Contacts

Point of Contact :
Anne E McCafferty
Originator :
Anne E McCafferty, Brian LN Kennett, Michelle Salmon, Erdinc Saygin, AusMoho Working Group
Metadata Contact :
Anne E McCafferty, GS GGGSC DM Team
Publisher :
U.S. Geological Survey
USGS Mission Area :
Energy and Minerals
USGS Program :
Mineral Resources Program
SDC Data Owner :
Geology, Geophysics, and Geochemistry Science Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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GeophysicsMoho_USCanada_Australia.xml
“FGDC metadata”
Original FGDC Metadata
View 		25.15 KB application/fgdc+xml
GeophysicsMoho_Australia.zip
“GeoTIFF of depth to Moho-Australia” 		2.22 MB application/zip
GeophysicsMoho_USCanada.zip
“GeoTIFF of depth to Moho-US and Canada” 		7.43 MB application/zip
GeophysicsMoho_Australia.jpg
“Map of depth to Moho-Australia” 		thumbnail 2.15 MB image/jpeg
GeophysicsMoho_USCanada.jpg
“Map of depth to Moho-US and Canada” 		thumbnail 7.77 MB image/jpeg

Purpose

The purpose of these data is to provide a composite depth to Moho grid for the United States and Canada and a depth to Moho grid for Australia. The grids were used in developing prospectivity models for basin-hosted Pb-Zn mineralization as part of the tri-national Critical Minerals Mapping Initiative, a collaboration between the national geological surveys of the United States (U.S. Geological Survey), Canada (Geological Survey of Canada) and Australia (Geoscience Australia).
Map of depth to Moho-US and Canada
Map of depth to Moho-US and Canada

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  • USGS Geology, Geophysics, and Geochemistry Science Center

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