Question

difference between Caldera and crater....plz give at least 3 points in a tabular form

Answer 1

A caldera is formed when a large eruption of magma, or lava, leaves a gigantic empty chamber underground. The volcanic material above the chamber, usually made of volcanic rock and tuff, collapses into the empty magma chamber. ... A crater, on the other hand, is almost always a vent for volcanic activity.

Answer 2

• A caldera looks like a volcanic crater, but it is actually formed when the overlying rocks collapse when a magma chamber is emptied creating vacuum below.

• A volcanic crater is a bowl like structure at the top of a volcano that has the opening for the eruption of lava and the ashes.

• Thus, a caldera is a special type of crater.

• A crater is formed by sinking of the top of the volcano as lava weakens the rocks. On the other hand, a caldera is formed when the overlying rocks collapse to fill an emptied huge chamber of magma.

• When a caldera gets filled with water after some time of its formation, it is called a crater lake such as the one in Oregon.