Giant, large-scale eruptions can have more serious impacts. One such event contributed to the demise of the dinosaurs 66 ...

As glaciers melt around the world, long-dormant volcanoes may be waking up beneath the ice. New research reveals that massive ...

Residents are wearing masks to protect themselves from thick volcanic ash that is blanketing several Indonesian villages as ...

Research geologist Michael Clynne knows more about the Lassen Volcanic Complex than anyone else. He’s studied the area as part of his research during the last 40 years. This is Clynne taken a few ...

Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq ...

Its rocks are predominantly andesitic and dacitic in composition—types of magma associated with particularly explosive eruptions. This geological profile helps explain why Mount Pelée produces the ...

Beacon Rock shoots 800 feet straight up out of the Columbia River. How did it get there? Sitting right on the edge of the Columbia River near Vancouver, Washington, Beacon Rock shoots 800 feet ...

Eruptions are explosive, producing large volumes of ash, pyroclastic flows, volcanic bombs and poisonous gases. The lava is andesitic, meaning it has a high gas content and is very viscous. The lava ...

From base to top the Lower Group comprises: Andesitic Volcanic Unit (AVU), Magnesian Basaltic Volcanic Unit (MBVU) and Basaltic Volcanic Unit (BVU). The Upper Group, undivided here, comprises clastic ...

Life Living microbes found deep inside 2-billion-year-old rock Ancient volcanic rock from South Africa has been found to harbour primitive bacteria, which may shed light on some of the earliest ...