Volcanic neck

Definitions

  • Webster's Revised Unabridged Dictionary
    • Volcanic neck (Geol) A column of igneous rock formed by congelation of lava in the conduit of a volcano and later exposed by the removal of surrounding rocks.
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Usage

In literature:

This mass occupies an ancient volcanic neck or throat of a geyser, probably the latter.
"The Business of Mining" by Arthur J. Hoskin
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