If there's one thing you, and Gollum, should know about volcanoes, it's that "lava=hot". That, and it's not a great idea to ...

This volcano is the only one existing on Earth which has an actively erupting and extremely runny carbonatite magma. The magma is saturated with alkali elements, like calcium and sodium and is ...

The part of the marble which protrudes into the syenite is changed into a carbonatite–pegmatite. Otherwise the marbles retain their regular banding, which even seems to be accentuated when ...

"Carbonatite magma at Ol Doinyo Lengai has less than 3 percent silica and is more akin to something you'd expect to find on a different planet," the US Geological Survey (USGS) explains on its ...