Cinder Cones and Lava Domes
A lava dome is a pile that forms when lava piles up over the vent instead of spreading out. Shapes of these volcanoes vary from one to another. The shape depends on a number of different factors such as the thickness of the lava and slope of the surrounding area. Most of the time the lava that will form a dome will have a higher content of silica (Si02). That composition is what makes the lava more liquidy.
Lava Domes
Cinder Cones
Cinder cone volcanoes are also called "scoria cones." They are generally small and cone shaped. They can even build up over a few months or years, while other volcanoes take hundreds of years. When cinder cones erput, pieces of lava (tephra) shoot out of vent, cooling at a rapid pace, to form a circular crater around the summit. This is how most cinder cone volcanoes are formed.
This lava dome volcano is named Borawli. It is located in Ethiopia. If this volcano had any eruptions, they happened over 10,000 years ago.
A new cinder cone was formed by the eruption of this volcano, Etna.