When a volcano erupts explosively it does not produce lava; it produces ash and pumice. The magma involved in an explosive eruption is usually felsic or intermediate. Rhyolite, dacite, and andesite are the most commonly discussed in beginner-level geology classes. However, if water gets into the volcano any type of magma can produce an explosive eruption.
Lava because pyroclastic material explodes from a volcano, Lava just runs down the surface of the volcano nonexplosive or explosive.
it is explosive! and shoots out lava and magma.
An explosive eruption typically produces thick and sticky lava known as silica-rich or felsic lava. This type of lava has high viscosity and trapped gas bubbles, causing it to erupt violently. As the lava is very viscous, it can block and build pressure in the volcano, resulting in explosive eruptions.
mud volcanos
No. A stratovolcano is a volcano with steep slopes consiting of layers of lava flows, ash, and pumice and is prone to explosive eruptions. A shield volcano is a volcano with broad slopes composed of layers of low viscosity lava flows and is generally not prone to explosive eruptions.
Acid Lava Dome is a type of volcano that forms when viscous acid lava solidifies quickly to form a volcano with steep convex sides.
The type of eruption that a composite volcano has is lava flow with cinders and bombs in an explosive eruption
Not exactly. Some volcanoes do consist of simply a lava dome, but most lava domes are found in or on stratovolcanoes.
Quiet volcanoes explode with much less suddenness, because lava does not cool and harden. The lava that creates a quiet volcano is still runny and flowing, and do not plug the craters and trap huge quantities of explosive gas. However, pockets of hot gas form that squirt fountains of lava into the air. Because lava flows away before hardening, broad sheets of lava and wide, gently sloping domes are formed around the volcano. When the lava has dried, it forms a rock known as basalt.
Yes. The ash and cinder layers are from explosive eruptions while the lava flows are from non-explosive eruptions.
Kilauea volcano, located in Hawaii, is one of the most active volcanoes in the world. It has been continuously erupting since 1983. Kilauea has a shield-like shape, with gentle slopes formed by fluid lava flows. The volcano is known for both effusive (non-explosive) and explosive eruptions, with lava fountains and lava flows being common.
The slope of a volcano can affect the type of lava that erupts. Steeper slopes typically result in more explosive eruptions with thicker, more viscous lava that can lead to pyroclastic flows and ash clouds. Meanwhile, gentler slopes tend to produce less explosive eruptions with runnier, less viscous lava that flows further and can create lava flows.