which means a really massive volcano that has a huge explosive force. ISLA: Oh this is the Scottish Parliament. Look at this wall Connor - it includes the three different types of rock ...

Tephra includes large, dense chunks, light rock debris ... to wash. The type of lava erupted by Nyiragongo and many volcanoes in the East Rift zone of Africa, called alkaline lava, has an ...

While it’s made of the same type of rock as the gorge’s ... but they didn't know it was a volcano. We now know that Beacon Rock was a cinder cone volcano that grew here inside of the gorge ...

An enormous water reservoir — likely the largest aquifer of its kind in on Earth — sits inside the volcanic rocks of the Oregon Cascades, scientists have revealed.

"The passengers are solid chunks of wall rocks that carry a wealth of details on conditions far beneath the surface of our planet over time." Kimberlite is a diamond-bearing volcanic rock ...

Researchers from the University of Oregon and other institutions have identified an aquifer—a layer of water-saturated rock or sediment—beneath volcanic rocks at the crest of the central ...