Solidified lava that fills the conduit of a volcano. Volcanic necks (also called plugs) are usually more resistant to erosion than the material making up the surrounding cone, and may remain standing as a solitary pinnacle when the rest of the original structure has eroded away.
A massive pillar of rock more resistant to erosion than the lavas and pyroclastic rocks of a volcanic cone.
• 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.
(from the article `igneous rock`) Erosion of volcanoes will immediately expose shallow intrusive bodies such as volcanic necks and diatremes (see Figure 6). A volcanic neck is the ...
A massive pillar of rock more resistant to erosion than the lavas and pyroclastic rocks of a volcanic cone.
A vertical intrusion with the geometry of a volcanic pipe. An erosional remant of a volcanic pipe.
Vol·can'ic 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. 
The solidified magma that originally filled the vent or neck of an ancient volcano and has subsequently been exposed by erosion.
See volcanic pipe.
A volcanic neck is a column of igneous rock formed by the congregation of lava in the conduit of a volcano and later exposed by the removal of surrounding rocks.
volcanic neck A mass of hardened volcanic magma that has been thrust upward into a volcanic cone by subterranean pressure, remaining upright after the surrounding material has been stripped away by erosion. Related 'fire, burn, glow' words: ars-, ard-; caust-, caut-; crema-; flagr-; flam-; g...