单词	stratovolcano
释义	stratovolcano /ˌstratəʊvɒlˈkeɪnəʊ / noun (plural stratovolcanoes) A volcano built up of alternate layers of lava and ash.Nevado del Ruiz volcano is an andesite stratovolcano located in the northern Andes of Colombia.... Between 30 and 40 million years ago, eruptions from a cluster of stratovolcanoes blanketed the area with ash beds and volcanic mud flows, reaching a maximum thickness of 3,000 feet. Vesuvius is a stratovolcano that grew within the breached crater of Monte Somma volcano.
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