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North American Tapestry Add-on

The North American Tapestry Add-on  adapts the USGS North American Tapestry of time and terrain for use with NASA World Wind. It depicts the geological age and makeup of North America. Also included are the distributions of several major types of rock formation.

"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."   - USGS -

 

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North American Tapestry
North American Tapestry
Full globe view of the North American Tapestry.
 
North American Tapestry
Close-up of the USA
Eastern seaboard.