The Soufriere Hills Volcano on Montserrat erupted in 1995, and an international team of researchers has studied this volcano from land and sea since then to understand the workings of andesite ...

There are many different kinds of volcanoes, ranging from the Hawaiian type, which produces gentle, effusive eruptions that tourists can observe from mere steps away, to the andesitic variety, which ...

A unique monitoring system in place on the island of Montserrat can record the everyday changes beneath the Soufriere Hills volcano and throughout the island, according to an international team of ...

A switch from predominantly undersea volcanoes to a mix of undersea and terrestrial ones shifted the Earth’s atmosphere from devoid of oxygen to one with free oxygen, according to geologists. “The ...

Basaltic andesite, similar to basalt but richer in silica, is more common, as in the Cascades volcanoes farther west, and Donnelly-Nolan mapped hundreds of basalt and basaltic andesite vents on the ...