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Somma |
Also found in: Wikipedia | 0.01 sec. |
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somma [′säm·ə]
(geology) The rim of a volcano. Somma (1) The name of a semicircular dome that is part of an ancient volcano near the Vesuvius crater. (2) The name for a nested crater consisting of an old volcano at varying stages of destruction that includes a younger volcanic cone in its caldera or crater. Examples of sommas are Mount Somma, which surrounds Vesuvius, and Avachinskaia Sopka on Kamchatka. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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