This volcanic cloud layer reflected the sunlight, causing global cooling of approximately 1 degree Celsius. While scientists knew it was a major event, the identity of the volcano responsible ...

The Greenland ice cores included ash layers and microscopic volcanic glass—shards “roughly one-tenth the diameter of a human hair,” Hutchison says in a statement. Chemical analyses of these ...

New study suggests rise of ancient city Tiwanaku coincided with major volcanic event in Lake Titicaca Basin's vicinity ...

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...

Mud volcanoes, though not fully understood, occur in areas where subsurface layers of fluidized sediments, like silt and clay, are pressurized by tectonic activity, such as near the boundaries of ...