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 ...

Only long-term studies can determine which type of gas fluctuations are cause ... Today his land is a pile of jagged volcanic rocks. "We know the mountain will erupt again. Lava will come.

Composite volcanoes are the most common type of volcano ... I’ve been asked by my fellow explorers to get some rock samples from Mount Vesuvius, but it’s an active volcano, so I’ll need ...

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 ...