Image:North america rock plutonic.jpg

From Wikipedia, the free encyclopedia

No higher resolution available.

North_america_rock_plutonic.jpg‎ (644 × 526 pixel, file size: 158 KB, MIME type: image/jpeg)

Wikimedia Commons logo This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is attempting to create a freely licensed media file repository. You can help.

Four maps show the North American distribution of four principal types of rock: sedimentary, volcanic, plutonic and metamorphic rock.

Metamorphic rock

Plutonic rock

Sedimentary rock

Volcanic rock

North American terrain

North American rock types

Source

North America Tapestry of Time and Terrain. (USGS,GSC,COREMI)
North America Tapestry of Time and Terrain. ( USGS, GSC, COREMI)

Home: http://pubs.usgs.gov/imap/i2781/

Image: http://pubs.usgs.gov/imap/i2781/i2781_c_low.pdf 144 dpi, encoded to 72 dpi JPEG, compressed slightly to fit within Wikipedia 2MB limit.

Source: English Wikipedia, original upload 15 April 2005 by SEWilco

Public domain This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy

\

The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
Retrieved from "http://en.wikipedia.org/wiki/Image:North_america_rock_plutonic.jpg"