The igneous feature shown in this photograph is:
A)dike
B)sill
C)volcanic neck
D)batholith

Question

The igneous feature shown in this photograph is: 
A)dike 
B)sill 
C)volcanic neck 
D)batholith

Quizplus · Accepted Answer

The feature shown in the photograph is a relatively narrow, steep-sided mass of igneous rock that appears to be protruding from the surrounding terrain. This is typical of a volcanic neck, which is formed when magma solidifies in the vent of a volcano and is then exposed through erosion and weathering. A dike is a vertical sheet-like intrusion of magma that cuts through layers of pre-existing rock, while a sill is a horizontal intrusion that is often flat or gently sloping. A batholith is a large, deep-seated body of magma that solidifies beneath the Earth's surface and encompasses an area of at least 100 square kilometers. None of these features appear to be depicted in the photograph.

The Igneous Feature Shown in This Photograph Is