a volcanic neck
a volcanic neck forms when magma hardens in a volcano's pipe and is later exposed.
a volcanic neck
Volcanic Neck The surrounding rock weathers more easily than the magma in the pipe. The resultant structure will first appear as a low flat protrusion which is slightly elevated from its surroundings. With additional weathering of the surrounding rock, the hardened magma may appear as a tower with possible basaltic columnar structure known as a volcanic plug or volcanic neck.
When magma hardens in a volcano's pipe
A volcanic plug. Frequently when glacially eroded these plugs form crag and tail feature.
When magma hardens in a volcano's pipe, the result will eventually be a volcanic neck or volcanic plug. This landform is a solidified remnant of magma that once filled the volcano's vent.
volcanic neck
volcanic neck
Volcanic Neck The surrounding rock weathers more easily than the magma in the pipe. The resultant structure will first appear as a low flat protrusion which is slightly elevated from its surroundings. With additional weathering of the surrounding rock, the hardened magma may appear as a tower with possible basaltic columnar structure known as a volcanic plug or volcanic neck.
Volcanic Neck The surrounding rock weathers more easily than the magma in the pipe. The resultant structure will first appear as a low flat protrusion which is slightly elevated from its surroundings. With additional weathering of the surrounding rock, the hardened magma may appear as a tower with possible basaltic columnar structure known as a volcanic plug or volcanic neck.
nothing
When magma has solidified in a volcanoes vent it is known as a volcanic plug. In some cases when there is a plug present in a stratovolcano, it can lead to very large explosive eruptions as pressure builds within the volcano.