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lithospheric plates and their motion

Norris

Focus 1 tectonic Impacts

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Across
2.This is the plastic-like layer under the lithosphere.
3.These plate boundaries are where plates move away from each other.
6.these rocks are formed at divergent boundaries and are higher in magnesium and iron.
7.these currents are the driving force behind plate tectonics
9.at these boundaries the lithosphere is consumed.
11.a rock formed at mid-ocean ridges
12.these rocks are formed at convergent boundries and are are high in feldspar and quartz.
13.Thin vertical veins of igneous rock that form when magma enters and cools in fractures found within the crust.
Down
1.crust is neither made or destroyed at these boundaries.
4.is an example of mafic rock.
5.A sheet of igneous rock intruded between layers of older rock.
8.is an example of a rock high in magnesium and magnesium
10.a rock formed at convergent plate boundaries.

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