The body has an amazing ability to heal â but itâs not perfect. Below: April 29 â Every scar tells a story â about the time you fell from your bike or the day you burnt your hand. Every scar also tells about the bodyâs amazing ability to heal itself. But itâs not perfect.
Lava flow during a rift eruption at Krafla, Iceland in 1984. Lava is the 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 melts the rock within the earth is geothermal energy.When first erupted from a volcanic vent, lava is a liquid at temperatures from 700 to 1,200 Â°C (1,292 to 2,192 Â°F).his molten rock is formed in the interior of some planets, including Earth, and some of their satellites. The source of the heat that melts the rock within the earth is geothermal energy. When first erupted from a volcanic vent, lava is a liquid at temperatures from 700 to 1,200 Â°C (1,292 to 2,192 Â°F).
Non explosive eruptions are favored by low gas content and low viscosity magmas (basaltic to andesitic magmas). If the viscosity is low, non-explosive eruptions usually begin with fire fountains due to release of dissolved gases. When magma reaches the surface of the earth, it is called lava.Since it its a liquid, it flows downhill in response to gravity as a lava flows. Different magma types behave differently as lava flows, depending on their temperature, viscosity, and gas content.iliceous Lava Flow s-High viscosity andesitic and rhyolitic lava flows, because they canât flow very easily, form thick stubby flows that donât move far from the vent. Lava Domes or Volcanic Domes-result from the extrusion of highly viscous, gas poor andesitic and rhyolitic lava.