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ShareA supervolcano refers to a volcano that produces the largest and most voluminous kinds of eruption on Earth.
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The actual explosivity of these eruptions varies, but the sheer volume of extruded magma is enough to radically alter the landscape and severely impact global climate for years, with a cataclysmic effect on life.
For more information about the topic Supervolcano, read the full article at Wikipedia.org, or see the following related articles:
Yellowstone Caldera — The Yellowstone Caldera, sometimes known as the Yellowstone supervolcano, is a volcanically active region in Yellowstone National Park. It measures ... > read more
Volcanic rock — Volcanic rock is an igneous rock of volcanic origin. Volcanic rocks are usually fine-grained or aphanitic to glassy in texture. They often contain ... > read more
Caldera — A caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater. A caldera ... > read more
Pyroclastic flow from volcanoes — Pyroclastic flows are a common and devastating result of some volcanic eruptions. They are fast-moving fluidized bodies of hot gas, ash and rock ... > read more
Pumice — Pumice is a highly vesicular pyroclastic igneous rock of intermediate to siliceous magmas including rhyolite, trachyte and phonolite. Pumice is ... > read more
Shield volcano — A shield volcano is a wide volcano with shallowly-sloping sides. Shield volcanoes are formed by lava flows of low viscosity - lava that flows easily. ... > read more
Volcanic cone — Volcanic cones are among the simplest volcano formations. They are built by fragments (called ejecta) thrown up (ejected) from a volcanic vent, ... > read more
Toba catastrophe theory — According to the Toba catastrophe theory, modern human evolution was affected by a recent, large volcanic event. Within the last three to five ... > read more
Basalt rock — Basalt is a common gray to black volcanic rock. It is usually fine-grained due to rapid cooling of lava on the Earth's surface. It may be porphyritic ... > read more
Igneous rock — Igneous rocks are formed when molten rock (magma) cools and solidifies, with or without crystallization, either below the surface as intrusive ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Supervolcano at Wikipedia.org. See the Wikipedia copyright page for more details.
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