Ash and cinder cone are steep sided hills formed by volcanicity. Pyroclasts of all sizes are ejected and accumulate around the fissures to build up a volcanic hill or an ash and cinder cone. Such cones are steep sided and approximately 150m high above its base. Examples are in Kisoro district and Lakaiyu cinder cones in the south of lake Turkana.
In geography, an ash cone and a cinder cone are both types of volcanic landforms that are formed by volcanic eruptions. Here’s a brief explanation of each:
- Ash Cone: An ash cone, also known as a tuff cone or a pyroclastic cone, is a volcanic landform that is built up primarily by the deposition of volcanic ash and other pyroclastic materials. During an explosive volcanic eruption, large amounts of ash, pumice, and other volcanic fragments are ejected into the air. These materials settle around the vent and accumulate, forming a cone-shaped structure. Ash cones are typically steep-sided and can vary in size from small mounds to larger, more prominent features.
- Cinder Cone: A cinder cone, also known as a scoria cone, is a type of volcanic cone that is primarily composed of loose volcanic cinders and scoria. Cinder cones are formed during eruptions characterized by the ejection of fragmented lava, which solidifies in the air and falls back to the ground as cinders and scoria. Over time, these accumulations of cinders build up around the vent, forming a symmetrical or slightly asymmetrical cone-shaped mound. Cinder cones are typically smaller in size compared to other volcanic landforms, and they often have a bowl-shaped crater at the summit.
Both ash cones and cinder cones are relatively simple and short-lived volcanic features compared to other types of volcanoes. They are often found in volcanic fields or as secondary vents associated with larger volcanic complexes.