Extrusive igneous rocks are formed from the solidification of magma above ground.
Igneous rock is found in volcanoes.
igneos rock
Volcanoes.
Igneous rock is a result of cooled lava or magma.
Igneous rock can be found.
Shield volcanoes are typically formed from basaltic lava flows, which are low in silica content and very fluid. This type of lava allows for the gradual buildup of wide, gently sloping volcanic cones characteristic of shield volcanoes.
Basalt is a rock formed by volcanoes.
They are all formed from minerals.
There are many kinds of volcanic rock. http://en.wikipedia.org/wiki/Volcanic_rock
they were formed by underwater volcanoes
Extrusive-formed on surfaceIntrusive-formed underground
Sedimentary rock.