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Is the outer layer of the earth, consists of oceanic and continental crust.
Is the inner layer of the earth, consists of iron and nickel.
Makes up over 75% of earths volume, consists of several layers of rock(just under the crust).
Is the material the continental crust is made out of because it consists silica and aluminium.
Is the material the oceanic crust is made out of because it consist of silica and magnesium.
Is the name given to the crust and the upper part of the mantle.
is the region just below the lithosphere.
Are the large ridged sections that the lithosphere is divided up into.
Is the coasts of the continents surrounding the Atlantic ocean could fit together like a jigsaw puzzle, if the continents were moved closer.
Are in the mantle and are the main cause of plate movement.
Is when plates separate and move apart from one another since new rock is formed, these are constructive boundaries.
Is when plates collide with one another since rock is destroyed, these are destructive boundaries.
Is when plates grind past one another since rock is neither formed or destroyed, these are passive boundaries.
When one plate sinks below the other.
Is the line along which the plates slide
Are volcanoes that are currently erupting or showing signs of unrest E.g. Mount Ethna.
Are volcanoes that haven't erupted in at least 600 years and are now quiet but have a high probability that they'll erupt again E.g. Mount St Helens.
Are volcanoes that haven't erupted in historical time E.g. Slemish Mountain in Antrim
The passage that goes up through a volcanic cone to allow lava to erupt on the surface.
Is a steep-sided depression found at the top of the volcano.
Is a cloud consisting of volcanic ash.
Is the lava that has less silica, causes it to be runny.
Is the lava that has more silica, causes it to be not as runny.
Is when ash and dust gets mixed up with rain or melted snow, a wet debris flow, a lahar can flow down slopes at speeds up to 200kmph
Is when the magma cools deep underground and forms intrusive landforms.
Is when the magma makes its way to the surface of the earth and cools.
Hot mantle under the plate known as a hot spot.
Large fractures in the earths crust.
Are dome-like structures with a flat floor.
Are horizontal sheets of volcanic rock that run parallel to the rock strata.
Are thin vertical sheets of volcanic rock that run perpendicular to the rock strata.
large platons at the surface and are greater then 100km.