| 释义 |
A vertical conduit below a volcano through which magma has passed and that has become filled with solidified magma, volcanic breccia, and fragments of older rock. Words nearby volcanic pipevolcanic ash, volcanic bomb, volcanic cone, volcanic glass, volcaniclastic, volcanic pipe, volcanic tuff, volcanism, volcanize, volcano, volcanogenic The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |