Ship Rock Monument is a spectacular example of a volcanic neck. This formation grows when a volcano is eroded all the way down to the pipe that once fed magma to the central vent. The upright conduit contains the cooled magma. Ship Rock provides a view of the magma features that were once below the cone of the volcano. The dikes, which are now solid rock, were once magma that cut through layers of the surrounding rock (NOAA, para 1).
[...] Ship Rock Monument Ship Rock Monument is a spectacular example of a volcanic neck. This formation grows when a volcano is eroded all the way down to the pipe that once fed magma to the central vent. The upright conduit contains the cooled magma. Ship Rock provides a view of the magma features that were once below the cone of the volcano. The dikes, which are now solid rock, were once magma that cut through layers of the surrounding rock (NOAA, para 1). [...]
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