SOURCE: U.S. Geological Survey Open-File Report 96-000
Image depicting the largest changes in global eustatic sea level that
have been inferred from geological studies. The light blue color shows
an estimate of the coastline of the eastern United States during the
last glacial maximum, about 20,000 years ago. The dark green shows the
modern coastline, and the lighter shades of green show the coastlines
that may have existed during the warm climatic interval of the middle
Pliocene epoch, about 3 million years ago.
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