Lava - Wikipedia
WebLava is molten or partially molten rock ( magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or underwater, usually at temperatures from 800 to 1,200 °C (1,470 to 2,190 °F).
Lava | Types, Composition, Temperature, & Facts | Britannica
Web5 days ago · lava, magma (molten rock) emerging as a liquid onto Earth’s surface. The term lava is also used for the solidified rock formed by the cooling of a molten lava flow. The temperatures of molten lava range from about 700 to 1,200 °C (1,300 to 2,200 °F).
What's the Difference Between Magma and Lava in Volcanoes?
WebMay 8, 2018 · The distinction between magma and lava is all about location. When geologists refer to magma, they're talking about molten rock that's still trapped underground. If this molten rock makes it to...
Volcano facts and information - National Geographic
WebJan 15, 2018 · Volcanoes, explained. These fiery peaks have belched up molten rock, hot ash, and gas since Earth formed billions of years ago. Volcanoes are Earth's geologic architects. They've created more than ...
Lava Science | Ask An Earth and Space Scientist
WebJun 21, 2019 · The glowing red-orange material is molten rock from deep below the Earth’s surface. When it erupts and flows on the surface, it is known as lava. When lava flows, it creates interesting and sometimes chaotic textures on its surface. These textures let us learn a bit about the lava.
Lava Flows - Woods Hole Oceanographic Institution
WebLava is the most common form of material erupted from volcanoes that form oceanic islands like the Galápagos and Hawaiian Islands. Lava flows are usually only 1-10 meters thick, but some flows can be as thick as 50-100 meters, depending on the type of …
What is the difference between "magma" and "lava"? - USGS.gov
WebSince it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth's surface. Magma that has erupted is called lava. Some volcanic eruptions are explosive and others are not. The...
lava - Kids | Britannica Kids | Homework Help
WebLava is hot, liquefied rock that flows from a volcano or other opening in the surface of Earth. When the liquid rock is still underground it is known as magma. Igneous rock is formed when lava cools and hardens.
Lava - Simple English Wikipedia, the free encyclopedia
WebLava is magma, hot molten rock that flows through holes in the Earth's crust and onto the surface. Like magma , lava can be either viscous (~thick) or fluid (~thin). [1] Blocky lava is so thick and slow that it barely moves along the ground.
What Is Lava Made Of? | Ask An Earth and Space Scientist
WebNow for the chemistry. The chemistry of lava flows can tell scientists about where the lava came from beneath the surface. It also lets them learn a bit about how it flowed. Silicon is a good element to use to understand where the lava came from and how it …
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