St. Helena is a volcanic island although volcanic activity has long since ceased. The last volcanic eruptions occurred about 7 million years ago and since that time the island has been sculpted into its present form by the forces of erosion.
Added: Sat Sep 06 2003
Category: Destinations: Africa: Saint Helena: Science and Environment: Geology
URL: http://geowww.ou.edu/~bweaver/Ascension/sh-nat.htm
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