National Geologic Map Database
General Information
- Title: Distribution of Precambrian mafic intrusives penetrating some Archean rocks of western northern America
- Author(s): Snyder, G.L., Hughes, D.J., Hall, R.P., and Ludwig, K.R.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Open-File Report OF-89-125
- Publication Date: 1989
- Map Scale: 1:4,878,049
- Cross Section: None
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