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Lava is molten or partially molten rock that erupts from a planetary surface. Learn about the composition, viscosity, and chemical types of lava, and see examples of lava flows and eruptions.
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. Lava, which is exceedingly hot (about 700 to 1,200 degrees C [1,300 to 2,200 degrees F]), can be very fluid, or it can be extremely stiff, scarcely flowing.
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Learn about the different types of lava based on their silica content, viscosity, and flow characteristics. Find out how lava is formed, classified, and what it looks like on the surface.
Learn about magma, the hot liquid and semi-liquid rock under Earth's surface, and lava, the magma that erupts onto the surface. Find out the types, temperatures, and effects of magma and lava.
Learn about the different types, shapes, and effects of lava, the molten rock that erupts from volcanoes. Discover how lava has influenced human history, culture, and science for thousands of years.
A`a lava flows a lot faster than pahoehoe and a`a are typically associated with eruptions that extrude lava rapidly. Because of its flow speed, the lava flow surface is disrupted and torn into pieces. If you want to understand how the material on the surface is disrupted, imagine stretching taffy. Once taffy has been stretched too far, it tears ...
Learn about the definition, composition, behavior, and features of lava, the molten rock that erupts onto the Earth's surface. Explore the differences between magma and lava, the types and effects of lava, and the role of volcanic gases.
Learn about lava, the hot molten rock that flows from volcanoes onto the surface. Find out the types, features and examples of lava, such as blocky, pahoehoe, aa and pillow lava.
Learn about lava, the molten rock that erupts from volcanoes and shapes the landscape. Discover the different types of lava, how they form, and how they influence life and ecosystems.