-------- Original Message --------
Subject: North America Tapestry Map from USGS
Date: Thu, 7 Aug 2003 15:25:58 -0600
From: "Joseph J Kerski" <[log in to unmask]>


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Folks:

The following is one of the most beautiful and fascinating new maps I
have
seen in the past decade from the USGS; an excellent resource for earth
science and geography instruction.

Joseph Kerski
~~~~~~~~~~~~~~~~~~
Subject:   The North America Tapestry of Time and Terrain
            By: Kate E. Barton, David G. Howell, Jose F. Vigil

Stock #:  114767
Price:      $7.00 for the map plus $5.00 handling charge

A new map in the Geologic Investigations Series, I-2781, this tapestry
map
is the result of a collaboration among the U.S. Geological Survey, the
Geological Survey of Canada, and the Mexican Consejo de Resursos
Minerales.
The map combines one-kilometer resolution digital elevation data with a
new
geologic map from the Decade of North American Geology.   The scale of
the
large map is 1 to 8 million, using a Lambert Azimuthal Equal Area
Projection.

The cartographic tapestry is woven from a geologic map and a shaded
relief
map.  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.  On the main part of the map, the ages of rock depict the
geological
history of the continent, by showing the varying age of the bedrock
underlying North America.  Inset maps show the distribution of four
major
rock types: sedimentary, volcanic, plutonic, and metamorphic.

This map expands the original concept of the 2000 Tapestry of Time and
Terrain, by Jose F. Vigil, Richard J. Pike and David G. Howell, which
covered the conterminous United States.

For more information and to view the map online, visit
http://geopubs.wr.usgs.gov/i-map/i2781/  May be downloaded in different
formats.

To view a low-resolution JPG of the map, see:
http://rockyweb.cr.usgs.gov/public/outreach/images/northam_tapestry.jpg

This map measures approximately 54 x 44 inches.

To order:  call 1-888-ASK-USGS, or visit  http://ask.usgs.gov.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Joseph J. Kerski, Ph.D.
Geographer:  Education/GIS
US Geological Survey
Building 810 - Entrance W-5 - Room 3000
Box 25046 - MS 507
Denver CO  80225-0046 USA
[log in to unmask]
Voice 303-202-4315
Fax    303-202-4137
http://rockyweb.cr.usgs.gov/public/outreach/
USGS:  Science for a Changing World
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~