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Precambrian Iron-Formations of the United States
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References
1973
Year
Historical GeographyEngineeringGeomorphologyPrecambrian GeologyLake Superior RegionPhysical GeographyUnited StatesEarth ScienceRegional GeologySocial SciencesNorthern Rocky MountainsBiogeographyQuaternary ResearchGeological DataGeochronologyGeographyGeologySouthwestern United StatesGeochemistryQuaternary Period
Distribution, genesis, age, Lake Superior region, northern Rocky Mountains, and southwestern United States