Volcanic cones are among the simplest volcano formations. They are built by fragments (called ejecta) thrown up (ejected) from a volcanic vent, piling up around the vent in the shape of a cone with a ...

Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes. Cinder cones are circular or oval cones made up of small fragments of lava from a single ...

You get a double feature for the latest Annotated Volcano. Why two volcanoes? I wanted to explain the difference between two different shapes of volcanoes: the archetype stratovolcano and the massive ...

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...

May 23 (UPI) --Rocks recovered from a remote mountainside in East Africa have offered scientists fresh insights into an unusual type of volcano -- a type of volcanism more hazardous than previously ...

From the glowing lava flows of Hawaii Volcanoes National Park to Yellowstone's spewing geysers and bubbling paint pots, our national parks provide a window into the molten interior of our planet.

The White Island Volcano in New Zealand – which erupted Monday with a towering blast of ash and scalding steam, killing at least five people – is one of New Zealand's most active volcanoes. The ...