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Volcanic Features quiz
Quiz
A dike swarm is:
a large active dike near the surface
a large dike with semi-perpendicular branches
a large dike-ridge that has resisted erosion
a large depression from an eroded dike
a large visible dike in a volcanic neck
several dikes that form a radial group
several dikes that appear to merge into one dike body
perpendicular dikes
parallel dikes
several dikes criss-crossing each other
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