THE thickness of a lava flow depends, in general, on three factors: the viscosity of the flowing ... in the interpretation of old volcanoes in which, owing to subsequent folding or tilting ...

The type of lava erupted by Nyiragongo and many volcanoes in the East Rift zone of Africa, called alkaline lava, has an extremely low viscosity, making it almost as fluid as water. Alkaline lava ...

The two types of volcano form in different places and have ... A lava tube may also form, beneath the surface of the ground, when low viscosity lava develops a hard crust through which lava ...

Lava with less silica in it has lower viscosity, meaning it is less thick ... Though cooler than other flows, the volcano can be dangerous due to the speed of the flow, and the fact that 510 ...

However, current viscosity measurements of high temperature materials are ... rheometer capable of measuring magmas over the range of conditions experienced during volcanic eruptions. Our new ...