| Abstract: | Where were the land areas and oceans of the North American Continent one million years ago, compared to our present geography? Was North America always about the same size and shape as it is today? To answer these questions, we must construct maps of the lands and sea that existed during the past ages. This process of reconstructing ancient geography is called paleogeography (from the Greek word "palaios," meaning ancient). |
| Genre: | USGS Unnumbered Series |
| ProdID: | 70039574 |
| Citation Author: | U.S. Geological Survey |
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| Citation Language: | English |
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| Citation Number Of Pages: | 16 |
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| Citation Phsyical Description: | 15 p.; ill.; maps (col.) |
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| Citation Publisher: | U.S. Government Printing Office |
| Citation Series: | Monograph |
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| Citation Search Results Text: | Our changing continent; 1969; USGS Unnumbered Series; U.S. Geological Survey |
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| Citation Year: | 1969 |
| Type: | citation/reference |
| Text: | Our changing continent; 1969; USGS Unnumbered Series; U.S. Geological Survey |
| URL (THUMBNAIL): | http://pubs.usgs.gov/unnumbered/70039574/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/unnumbered/70039574/report.pdf |
| Date Other: | Sun, 1 Jan 2012 20:16 -0600 |
| Publisher: | U.S. Government Printing Office |
