Explosive or voluminous eruptions may cause the volcano to collapse on the floor of the now-empty magma chamber,producing a broad depression termed a ________.

A)dike
B)lahar
C)caldera
D)fissure

Question

Explosive or voluminous eruptions may cause the volcano to collapse on the floor of the now-empty magma chamber,producing a broad depression termed a ________.

A)dike 
B)lahar 
C)caldera 
D)fissure

Quizplus · Accepted Answer

Explosive or voluminous eruptions can cause the collapse of the volcano on the floor of the magma chamber, resulting in a broad depression called a caldera. A dike is a vertical or nearly vertical rock structure formed by magma that has forced its way through the surrounding rock. A lahar is a type of volcanic mudflow or debris avalanche formed from volcanic ash and other debris mixed with water. A fissure is a long, narrow crack or opening in the ground or rock.

Explosive or Voluminous Eruptions May Cause the Volcano to Collapse