0
What else can I help you with?
What do underwater volcanic eruptions cause?
Underwater eruptions cause tsunamis and cause lava to form and underwater ridge.
What to do after volcanic eruptions?
run like crazy cause the lava is coming
What type of eruptions do mafic magmas cause?
Basaltic magmas are associated with fissure eruptions creating lava flows spilling out from cracks in the crust. This is because basaltic magmas are more viscous and contain a lower concentration of gases than rhyolitic magma and therefore are unable to build up sufficient pressure to produce explosive eruptions.
The different types of eruptions that result from different types of lava?
Different types of lava result in different types of volcanic eruptions. Basaltic lava, which is low in viscosity, typically leads to effusive eruptions characterized by gentle flows. Andesitic or dacitic lava, with higher viscosity, can cause explosive eruptions with pyroclastic flows and ash clouds. Rhyolitic lava, the most viscous type, tends to form dome eruptions with slow-moving lava flows and explosive activity.
Are lava combs constructive or destructive?
Lava combs are considered destructive features because they are formed by volcanic eruptions that can cause widespread damage to the surrounding environment. They are often associated with explosive eruptions and the deposition of lava and other volcanic materials, which can lead to destruction of landscapes and ecosystems.
Can repeated eruptions of relatively fluid lava from fissures eventually cause an area to be covered by flood basalts?
Yes, repeated eruptions of fluid lava from fissures can lead to the accumulation of thick layers of basaltic lava flows known as flood basalts. These eruptions commonly occur in large igneous provinces and can cover extensive areas, altering the landscape significantly.
Eruptions that are characterized by small explosions and thick lava flows are what?
Volcanic eruptions.
Why can lava be explosive or non explosive?
Lava can be explosive if it is high in gas content, such as dissolved water vapor or carbon dioxide, which can cause pressure to build up and lead to explosive eruptions. On the other hand, lava can be non-explosive if it is low in gas content and flows more easily without building up pressure, resulting in effusive eruptions with slower lava flows.
Are pahoehoe and AA produced during explosive eruptions?
No, pahoehoe and aa lava are typically produced during non-explosive eruptions. Pahoehoe lava has a smooth, ropey texture, while aa lava is rough and jagged. Explosive eruptions typically produce ash, pyroclastic flows, and lava domes.
What type of lava erupts from Mount Etna and how does this effect the eruptions?
Mount Etna typically erupts with basaltic lava, which is low in viscosity and flows more easily compared to other types of lava. This can result in effusive eruptions with lava fountains and lava flows traveling long distances. The low viscosity of basaltic lava allows gases to escape more easily, reducing the risk of explosive eruptions.
Lava lakes are a unique feature of the eruptions of?
kilauea
What happens as the eruptions continue?
More lava comes out.
