Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite. Such magmas are typically too viscous to move far from the vent ...

Lava flows come in a great variety of shapes and sizes. Nyiragongo is considered one of the most dangerous volcanoes in the world because of its particularly fast-moving lava, which can flow more ...

This micro-scale analysis helps us extract the magma secrets from the volcanic crystals, to reconstruct the inner anatomy of a volcano as if we were opening a doll's house. So next time you hike a ...