This map is a collaboration among the U.S. Geological Survey, Geological Survey of Canada, and Mexican Consejo de Resursos Minerales. The Tapestry map combines one-kilometer resolution digital elevation data with a new geologic map from the Decade of North American Geolgy geologic map/ On the main part of the map, the ages of rocks depict the geological history of the continent. Inset maps show the distribution of four major rock types: sedimentary, volcanic, plutonic, and metamorphic. The scale of the main part of the map is 1 to 8 million, using a Lambert Azimuthal Equal Area Projection.
U.S. Geological Survey, 2003, North America Tapestry of Time and Terrain: U.S. Geological Survey Miscellaneous Item 40
Notes: Includes information booklet
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