From Conservapedia - Reading time: 1 min
Mount Mageik volcano viewed from the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska. Mageik's broad summit consists of at least four separate structures built above different vents.
Steep, conical volcanoes built by the eruption of viscous
lava flows,
tephra, and
pyroclastic flows, are called
stratovolcanoes or
composite cones. Stratovolcanoes may erupt a variety of
magma types, including
basalt,
andesite,
dacite, and
rhyolite. All but basalt commonly generate highly explosive eruptions. A stratovolcano typically consists of many separate vents, some of which may have erupted cinder cones and domes on the volcano's flanks.
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References[edit]
- ↑ http://volcanoes.usgs.gov/Products/Pglossary/stratovolcano.html