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chapter 18



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3.Intrusive igneous rock bodies, including batholiths, stocks, sills, and dikes, formed though mountain-building processes and oceanic-oceanic collisions,can be exposed at Earth's surface due to uplift and erosion
5.Internal resistance to flow
6.Opening in Earth's crust through wich lava erupts and flows out into the surface
7.Seift-moving, potentially deadly clouds of gas, ash, and other volcanic material produced by a violent eruption
11.Large, sloping volcano built by violent eruptions of volcanic fragments and lava that accumulate in alternating layers
12.Relatively small, mushroom-shaped pluton that forms when magma intrudes into parallel rock layers close to Earth's surface.
14.Rock fragmants, classified by size, that are thrown into air during a volcanic eruption and fall to the ground
15.Large crater, up to 50 km in diameter, that can form when the summit or side of a volcano collapses into the magma chamber during or after an eruption
16.Irregularly shaped pluton that is similar to a batholith but smaller, generally forms 10-30 km beneath Earth's surface, and cuts across older rocks
1.Steep-sided,generally small volcano that is built by the accumulation of tephra around the vent
2.Pluton that cuts across pre-existing rocks and often forms when magma invades cracks in surrounding rock bodies
4.Broad volcano with gently sloping sides built by nonexplosive eruptions of basaltic lava that accumulates in layers
8.Unusually hot area in Earth's mantle that is stationary for periods of time, where high-temperature plumes of mantle material rise toward the surface
9.Pluton that forms when magma intrudes parallel rock layers
10.Coarse-grained, irregularly shaped, igneous rock mass that covers at least 100km2, generally forms 10-30 km below Earth's surface, and is common in the interior of major mountain chains
13.Bowl-shaped depression, usually less than 1 km in diameter, that forms around the central vent at the summit of a volcano

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