The highest mountain ranges are created by tectonic ... mountains in Britain like Ben Nevis in Scotland and Snowdon in Wales used to be volcanoes. But they became extinct long ago, and haven ...

One notable locality for augite specimens in Arizona is northwest of Flagstaff at Red Mountain, a cinder cone volcano that exploded more than 750,000 years ago. Specimens occur in volcanic tuff ...

A 2024 satellite photo shows four end-to-end volcanoes perfectly spaced out along the Russian island of Simushir. One of ...