Quick facts about volcanoes The world's largest volcano: Mauna Loa, which rises 30,000 feet (9,000 meters) above the seafloor Number of active volcanoes in the U.S.: 165 ...

Extinct volcanoes Many worlds in our solar system show signs of ancient volcanoes and lava flows solidified in fascinating rock formations. Sapas Mons, an extinct volcano on Venus, has two peaks.

Extinct volcanoes could contain high concentrations of rare earth elements, essential components for the green transition.© Govan Zhang/Getty Michael Anenburg in the lab.

Dr. Anenburg, of ANU, said: “We have never seen an iron-rich magma erupt from an active volcano, but we know some extinct volcanoes, which are millions of years old, had this enigmatic type of ...

Some extinct volcanoes may be harboring a cache of "rare earth elements," new research has determined. These elements are important for running certain green technologies. The discovery therefore ...

[Related: .] Extinct volcanoes could be a source of rare earth elements, including gadolinium, praseodymium, cerium, samarium, lanthanum, and neodymium.

Within the deposits of extinct volcanoes around the world, a mysterious magma may be Earth’s new source for rare metals. This iron-rich magma could be full of the metals that help power some of ...

One of those volcanoes, Anenburg writes, is called Kiruna. Located in Sweden, the site—which has long been mined for the iron in its iron-rich magma—was found to be the “largest rare earths ...

India is a land full of surprises! For those who don’t know, you can still find volcanoes here in India. While most of them ...

A mysterious type of iron-rich magma entombed within extinct volcanoes is likely abundant with rare earth elements and could offer a new way to source these in-demand metals, according to new ...

There are 200 volcanoes around the Lone Star State. All of them are extinct. Here’s where to see remnants of the geologic formations.