- Volcano - Wikipedia
A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface [1]
- Which volcanoes are erupting? - List map of active volcanoes erupting . . .
Daily gas-and-ash plumes from the lava-dome complex rose as high as 4 km a s l , or around 750 m above the summit, and drifted W and NW during 6-8 July, based on webcam views and statements issued by the Tokyo Volcanic Ash Advisory Center (VAAC)
- About Volcanoes | U. S. Geological Survey - USGS. gov
Volcanoes are openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface Volcanic eruptions can last days, months, or even years
- Volcano | Definition, Types, Facts | Britannica
Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases The term volcano can also refer to the landform created by the accumulation of solidified lava and volcanic debris near the vent
- Understanding Volcanoes: Earth’s Fiery Forces
Even more paradoxical, volcanic gases may have played a role in Earth’s first breath of life The early atmosphere, rich in volcanic emissions, lacked oxygen but provided the raw materials for chemical evolution Life may have emerged in underwater hydrothermal vents—volcanic chimneys spewing nutrient-rich fluids into primordial seas
- Volcanoes and Volcanic Eruptions - Facts and Information
Articles, facts, information and photos for volcanoes and volcanic activity | Geology com
- Volcano facts and information | National Geographic
Volcanoes are Earth’s geologic architects They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive Their explosive force crafts
- Volcanoes - National Geographic Society
Volcanoes are classified as active, dormant, or extinct Active volcanoes have a recent history of eruptions; they are likely to erupt again Dormant volcanoes have not erupted for a very long time but may erupt at a future time Extinct volcanoes are not expected to erupt in the future
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