The central depression is called a crater, or more technically a "caldera."
The central depression is called a crater, or more technically a "caldera."
crater
Cluster
A Crater
Crater
A concave hollow is a crater. In a dormant volcano, the empty magma pit is called a caldera.
The name of the hollow landform, found at the top of the volcano is called crater.
Vent .
You may have a "Heatilator" style fireplace. There is a hollow compartment heated by the fire. Cool air is drawn in near floor level, warmed, and leaves for the side vents. Does a much better job of warmng a room than a standard fireplace.
Volcano , (volcanic vent).
A concave hollow is a crater. In a dormant volcano, the empty magma pit is called a caldera.
The name of the hollow landform, found at the top of the volcano is called crater.
Vent .
A volcanic vent.
A crater
If the volcano is active, there may be vents around the volcano as well as on top. A vent is where volcanic material (lava, steam, ash) is being released.
the magma cools and hardens and then it becomes the surface of around the volcano like a rock land
It is a valley
You may have a "Heatilator" style fireplace. There is a hollow compartment heated by the fire. Cool air is drawn in near floor level, warmed, and leaves for the side vents. Does a much better job of warmng a room than a standard fireplace.
Volcano , (volcanic vent).
The bowl shaped depression that forms around the central vent of a volcano is called a crater. Craters are small, usually less than one kilometer in diameter.
The MAIN vent of the volcano is where all the lava comes out. The side vent is out the side and also is where some lava comes out.