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18.2-18.3 Vocab-Volcanoes

Word Bank: viscosity, tephra, pyroclasticflows, plutons, batholiths, stocks, laccolith, sill, dike
Across
Intrusive igneous rock bodies that are exposed at Earth's surface as a result of uplift and erosion and are classified based on their size, shape, and relationship to surrounding rocks
Physical property that describes a material's resistance to flow
Rapidly moving clouds of tephra mixed with hot, suffocating gases
A pluton that cuts across preexisting rocks
Irregularly shaped plutons that are similar to batholiths, but smaller in size
Down
Lens-shaped pluton with a round top and flat bottom
Erupted materials caused when lava is too viscous to flow freely from the vent and pressure builds up in the lava until it explodes and throws it into the air
Irregularly shaped masses of coarse-grained igneous rocks that cover at least 100 square km and take millions of years to form
Forms when magma intrudes parallel to layers of rock