Volcanic crater.
A mass rock is formed when a volcano's magma chamber empties and the overlying rock collapses into the empty chamber. This creates a steep-walled depression or caldera at the volcano's summit. It is a common feature of collapsed volcanoes.
cinder cone volcano
A volcanic crater is a large, basin-like depression at the summit of a volcano. It forms when the magma chamber beneath a volcano is emptied during an eruption, causing the overlying rock to collapse into the chamber. Craters can also be formed by explosive eruptions that blow out the summit of a volcano.
Cinder is a kind of volcano...a steep and active volcano :D
composite
The steep walled depression surrounding a volcano vent is called the crater. In dormant volcanos, these may fill with water and become crater lakes.
The steep walled depression surrounding a volcano vent is called the crater. In dormant volcanos, these may fill with water and become crater lakes.
A mass rock is formed when a volcano's magma chamber empties and the overlying rock collapses into the empty chamber. This creates a steep-walled depression or caldera at the volcano's summit. It is a common feature of collapsed volcanoes.
canals
composite volcano
A cinder cone volcano.
cinder cone volcano
A volcanic crater is a large, basin-like depression at the summit of a volcano. It forms when the magma chamber beneath a volcano is emptied during an eruption, causing the overlying rock to collapse into the chamber. Craters can also be formed by explosive eruptions that blow out the summit of a volcano.
composite volcano.
Cinder is a kind of volcano...a steep and active volcano :D
An avalanche or pyroclastic flow.
I felt a twinge of depression when I realized that the valley's depression was too steep to descend into.