The Highest Volcano in the Sahara

emi-koussi-volcano-chad-110214-02 — (Image credit: NASA)

The broad Emi Koussi volcano, as seen in this astronaut photograph is a shield volcano located in northern Chad, at the southeastern end of the Tibesti Range.

The dark volcanic rocks of the volcano provide a sharp contrast to the underlying tan and light brown sandstone exposed to the west, south and east (image lower left, lower right and upper right).

At 11,204 feet (3,415 meters) above sea level, Emi Koussi is the highest summit of Africa's Sahara region . The summit includes three calderas (volcanic craters) formed by powerful eruptions.

Two older and overlapping calderas form a depression approximately 7.5 by 9.3 miles (12 kilometers by 15 kilometers) in area bounded by a distinct rim (image center). The youngest and smallest caldera, Era Kohor, formed as a result of eruptive activity within the past 2 million years.

Young volcanic features, including lava flows and scoria cones (also called cinder cones) are also thought to be less than 2 million years old. There are no historical records of eruptions at Emi Koussi, but there is an active thermal area on the southern flank of the volcano, according to a NASA statement.

For the science geek in everyone, Live Science offers a fascinating window into the natural and technological world, delivering comprehensive and compelling news and analysis on everything from dinosaur discoveries, archaeological finds and amazing animals to health, innovation and wearable technology. We aim to empower and inspire our readers with the tools needed to understand the world and appreciate its everyday awe.