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Is the flow easily a physical property of magma from an explosive eruption?
no
What about magma affects how explosive an eruption will be?
The composition of the magma affects how explosive a volcanic eruption will be.
How can the composition of magma affect the way volcano erupts?
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
Which is not a characteristic of magma from an explosive eruption?
flows easily
An explosive eruption occurs if magma is?
An explosive eruption occurs if magma is high in gas content and viscosity. The high gas content creates pressure within the magma chamber, leading to a violent release of energy when the eruption occurs. The high viscosity of the magma makes it more difficult for gases to escape, further increasing the explosiveness of the eruption.
How does magma composition and the resulting eruption affect the form of a volcano?
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
Is flows easily a physical property of magma from a explosive eruption?
no
How the composition of magma determines an eruption's characteristics?
Silica(te) rich magma is usually an explosive eruption. The explosiveness of an eruption depends on - a) Gases trapped within the magma at eruption b) The Silica content c) The fragility of the crater walls and/or the volcanic plug.
Why does a non explosive eruption occur when basaltic magma is present?
The explosive potential of a volcano is determined by two primary factors:Gas within the magmaViscosity of the magmaThe combination of the gas and the viscosity determine the explosive potential of the magma as a result of the ability for the magma to flow as well as if it can release the dissolved gasses in a passive manner.Volcanoes that have a high concentration of Silica in their magma traditionally have a tendency to erupt more explosively. In the case of basalt, although there is traditionally a high level of dissolved gasses within the magma, basalt can easily flow. The ability for basalt to easily flow allows for the passive release of the gasses that are dissolved in the magma resulting in a non-explosive eruption as the gasses are released over time as the magma reaches the surface and not catastrophically as the magma escapes.
How does an explosive erupton produce proclastic flow?
The explosive eruption has got to be powerful enough to create an eruption column (a Jet of hot gas and magma particles). This is shot into the atmosphere by the force of the eruption but the weight of the stuff in the eruption column is so great that it collapses back down on itself under gravity and runs down the sides of the volcano as a pyroclastic flow.
Is magma a explosive eruption and why?
Magma is not an eruption. Magma is a mixture of molten minerals and dissolved gas that is underground. All volcanic eruptions, apart from phreatic eruptions, involve magma.
What factors determine how explosive the eruption of a volcano will be?
In a volcano, the higher the pressure rises before eruption takes place, the more explosive the eruption will be. Some volcanoes seem to be "gentle flow" as a matter of course (like Mauna Loa in Hawaii). Some seem to be explosive as a matter of course (like Vesuvius in Italy). Others manifest both types of eruptions.
