What is extinct volcano. name an extinct volcano of africa

Mount Elgon, extinct volcano on the Kenya-Uganda boundary. Its crater, about 5 miles (8 km) in diameter, contains several peaks, of which Wagagai (14,178 feet [4,321 m]) is the highest. Its extrusions cover about 1,250 square miles (3,200 square km) and consist largely of fragmental rocks and only a smattering of lavas. The mountain slope is gentle and the outline unimpressive. On the east and southeast at about 6,200 feet (1,890 m) its relief merges with the Uasin Gishu Plateau, but in the west and northwest spectacular cliffs dominate the 3,600-foot (1,100-metre) plains of eastern Uganda. In the summit zone, moraines provide ample evidence of former glaciation. On the caldera’s uneven floor there are considerable swamps, tapped by the Suam and Turkwel rivers. Other streams furrow the slopes. The moorland zone, containing tree heaths, giant groundless, and lobelias, extends down to 10,000 feet (3,050 m), where it is succeeded by bamboo forest. Below 8,300 feet (2,550 m) is a temperate deciduous forest.

Extinct volcanos are the volcanos that have not erupted in a really long period of time, at least 10,000 years or have not erupted at all. An example of that type of volcano in Africa is Waw an-Namus in Libya.

Explanation:

People are sometimes mixing dormant and extinct volcano. Dormant volcano is a volcano that have not erupted in a long period, but it is expected that it will happen some day. An example of that type of volcano is Mount Kilimanjaro.