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).
Short-term prediction of volcanic eruptions involves monitoring the volcano to determine when magma is approaching the surface and monitoring for precursor events that often signal a forthcoming eruption. 1  Earthquakes-As magma moves toward the surface it usually deforms and fractures rock to generate earthquakes. Lava flows are produced on the surface, and these run like liquids down slope, along the lowest areas they can find. 2  If the magma emerges along a fracture, it results in a fissure eruption, often called a curtain of fire. 3  Lava flows produced by eruptions under water are called pillow lavas.