Pyroclast (from the Greek words for “fire” and “broken”) is the collective term for all fragmented material ejected by a volcano. This includes everything from fine volcanic ash and dust to medium-sized Lapilli and large volcanic bombs or blocks torn ...
Discussion Forum Latest Questions
While water vapor makes up the majority (up to 90%) of volcanic gases, the remaining significant components are Sulfur dioxide (SO2), Carbon dioxide (CO2) and Nitrogen (N2). Smaller amounts of hydrogen sulfide and carbon monoxide are also common. These gases ...
Pele’s Tears are small bits of volcanic glass formed when droplets of molten lava are ejected into the air and solidify quickly into teardrop-shaped spheres. They are named after Pele, the Hawaiian goddess of fire and volcanoes and are commonly ...
The molten material present beneath the solid rocks of the Earth’s crust is called magma. It exists at very high temperatures and contains molten rock, gases, and minerals. During a volcanic eruption, this magma rises through cracks in the crust ...
A Dormant volcano is often called a “sleeping volcano.” It is a volcano that has not erupted for a long time but has the potential to erupt again in the future. These are particularly dangerous because they can appear peaceful ...