Molluscum contagiosum and warts are benign epidermal eruptions that result from viral infections of the skin. |
Some volcanic eruptions generate dangerous lahars that travel far beyond the volcano. |
Slowly rising lava domes may grow for months or for several years in the aftermath of explosive eruptions. |
Deception Island is a historically active volcano with the last eruptions about 30 years ago. |
Injections of new batches of mafic magma have been important for triggering dacitic eruptions. |
This magma is rich in carbon dioxide gas, which produces explosive eruptions. |