LAVA

Lava

Lava refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. The source of the heat that liquifies the rock within the earth is geothermal energy. When first erupted from a volcanic vent, lava is a liquid at temperatures from . Up to 100,000 times as viscous as water, lava can flow great distances before cooling and solidifying because of its thixotropic and shear thinning properties.

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lava

Noun

  1. The melted rock ejected by a volcano from its crater or fissured sides.
  2. Magma.


The above text is a snippet from Wiktionary: lava
and as such is available under the Creative Commons Attribution/Share-Alike License.

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