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Geologic Investigations Series I-2781

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# The North America Tapestry of Time and Terrain

#### By Kate E. Barton, David G. Howell, José F. Vigil

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| **ABSTRACT**

The North         America Tapestry of Time and Terrain (1:8,000,000 scale) is a product         of the US Geological Survey in the I-map series (I-2781). This map was prepared         in collaboration with the Geological Survey of Canada and the Mexican         Consejo Recursos de Minerales. 

This cartographic         Tapestry is woven from a geologic map and a shaded relief image. This         digital combination reveals the geologic history of North America through         the interrelation of rock type, topography and time. Regional surface         processes as well as continent-scale tectonic events are exposed in the         three dimensions of space and the fourth dimension, geologic time. The         large map shows the varying age of bedrock underlying North America, while         four smaller maps show the distribution of four principal types of rock:         sedimentary, volcanic, plutonic and metamorphic.

This map         expands the original concept of the 2000 Tapestry of Time and Terrain,         by José F. Vigil, Richard J. Pike and David G. Howell, which covered         the conterminous United States. The U.S. Tapestry poster and website have         been popular in classrooms, homes, and even the Google office building,         and we anticipate the North America Tapestry will have a similarly wide         appeal, and to a larger audience. |
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this map as a PDF file
this map as a medium-resolution (300 dpi) PDF file
this map as a low-resolution (144 dpi) PDF file
a smaller, jpeg
files used for printing this map

Geologic data were compiled by John C. Reed, Jr. (USGS) and John O. Wheeler (Geological Survey of Canada), for the Decade of North American Geology Geologic Map of North America, sponsored by the Geological Society of America. These geologic data were simplified and generalized by David G. Howell (USGS). The shaded relief map was created from 1-km resolution digital elevation data.

**For additional information, contact:**Geology, Minerals, Energy, and Geophysics Science CenterBuilding 19, 350 N. Akron Rd.P.O. Box 158Moffett Field, CA 94035

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U.S. Department of the Interior |            U.S. Geological Survey           	URL: *http://pubsdata.usgs.gov/pubs/imap/i2781/index.html*            Page Contact Information: GS Pubs Web Contact           	Page Last Modified: Tuesday, 09-Jan-2024 12:31:03 EST