Magma which has reached the surface through a volcanic eruption The term is most commonly applied to streams of liquid rock that flow from a crater or fissure It also refers to cooled and solidified rock
Any molten material that is extrusive or volcanic, or the rock that forms from a molten extrusive
rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface
Molten rock erupted from a volcano Lava can occur in flows, domes, fragments and as pillows formed underwater
Molten rock erupted onto the surface of the Earth Lavas vary according to the chemistry of the molten rock In general the more silica they contain, the more viscous they are Basalt, a silica-poor (basic) lava tends to flow easily and therefore form thin, extensive lava flows, while rhyolite lava (acid) is so viscous it rarely flows and forms 'domes' above the site of the eruption
Lava is the name given to magma (molten or melted rock) when it reaches the earth's surface It is ejected from volcanoes during eruptions or oozes from cracks in the earth's surface and ev eventually solidifies to become volcanic rock
molten material that is erupted from a volcano LAVA FLOW - lava that moves like a viscous liquid LANDSLIDE - unstable earth that flows downward LARGE EARTHQUAKE - an earthquake that causes damage, usually over a 7 0 on the Richter Scale LIQUEFACTION - to become liquid usually refers to soil that "settles" during an earthquake LIQUID - a substance that flows