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Is mtn etna explosive or quiet and lava or pyroclastic flow?
Mount Etna has had both explosive and "quiet" eruptions and has produced lava flows, lava fountains, and pyroclastic flows.
What makes a quiet eruption different from an explosive eruption?
quiet eruption flows easeir cause it has a low viscosity and lava flows easier but explosive eruption has a high viscosity and lava flows slower
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.
What do lava flows made of pahoehoe and AA indicate about the the type of volcanic eruptions and occurred?
Lava flows of pahoehoe and aa indicate that the eruption was effusive ("quiet") rather than explosive, or only very mildly explosive.
What do lava flows made of pahoehoe and AA indicate about the type of volcanic eruptions that occurred?
Lava flows of pahoehoe and aa indicate that the eruption was effusive ("quiet") rather than explosive, or only very mildly explosive.
What do lava flows the made of pahoehoe and AA Indicate about the type of volcanic eruption that occurred?
Lava flows of pahoehoe and aa indicate that the eruption was effusive ("quiet") rather than explosive, or only very mildly explosive.
What kind of eription is produced when basaltic lava that is low in silica flows from a volcan?
A quiet, non explosive eruption. Silica-high lava produces explosive eruptions.
Are non explosive eruptions without pyroclastic flows and ash plumes that extend into the stratosphere?
Yes, non-explosive eruptions can occur without pyroclastic flows and ash plumes extending into the stratosphere. These eruptions typically involve the effusion of lava rather than explosive fragmentation, resulting in lava flows or gentle lava fountains. An example of this type is the Hawaiian-style eruption, where basaltic lava flows steadily from a vent without significant gas explosions. Such eruptions can still be visually impressive but are generally less hazardous than explosive eruptions.
What are the characteristics of viscous lava flows?
Viscous lava flows are typically thicker and move more slowly than less viscous lava flows. They have a higher silica content, which makes them more resistant to flow. Viscous lava flows tend to form steep-sided volcanoes and are associated with explosive eruptions.
What type of lava does mount Cleveland have?
Mout Clevelands recent eruptions have been explosive, producing clouds of ash rather than lava flows. This kind of activity may be accompanied by blocky lava flows.
Is it true that a composite volcano have both quiet and explosive options?
Yes. The ash and cinder layers are from explosive eruptions while the lava flows are from non-explosive eruptions.
How are the slope of a volcano and the type of lava that forms the volcano related?
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.
