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Why are Hawaiians volcanic eruptions less violent?
Compared with some other volcanoes around the world, the Hawaiian volcanoes are fed by low-viscosity magma with a low gas content. The explosive power of a volcanic eruption is driven by gas trapped in the magma, and magma that is more viscous allows more pressure to build up. The magma in the Hawaiian volcanoes flows out fairly readily.
Why are Hawaiian volcanoes shield volcanoes?
Hawaiian volcanoes are shield volcanoes because they are characterized by their broad, gently sloping shape resembling a warrior's shield. This is due to the low viscosity of the basaltic lava they erupt, allowing it to flow easily and travel long distances before solidifying. As a result, shield volcanoes tend to build up gradually over time with successive eruptions, creating their distinctive shape.
What is a good example of a shield volcano?
Shield volcanoes, so named for their broad, shield-like profiles, are formed by the eruption of low-viscosity lava that can flow a great distance from a vent. They generally do not explode catastrophically. Since low-viscosity magma is typically low in silica, shield volcanoes are more common in oceanic than continental settings. The Hawaiian volcanic chain is a series of shield cones, and they are common in Iceland, as well.
When Mount Vesuvius last erupted did the lava have high or low viscosity?
The lava from Mount Vesuvius during its last eruption in 1944 had high viscosity, meaning it was thick and flowed slowly. This type of lava often leads to explosive eruptions and can create steep-sided volcanoes.
How would you describe lava with a high viscosity?
Lava with high viscosity is thick and slow-moving, resembling thick honey or toothpaste. It tends to flow more sluggishly and can build up pressure, leading to explosive eruptions with volcanic ash and debris.
Do shield volcanoes have high viscosity?
No, shield volcanoes have low viscosity lava due to their composition of basaltic magma, which has low silica content. This low viscosity allows the lava to flow easily and spread out over a wide area, resulting in the gentle, sloping shape characteristic of shield volcanoes.
Are hawaiian islands spatter cones?
No, they're shield volcanoes. The lava in spatter cones is highly viscous whereas the lava that forms shield volcanoes (that you can see flowing in Hawaii) has a very low viscosity. Shield volcanoes are low profile, broad lumps; these are the Hawaiian islands.
What type of volcanoes make up the Hawaiian islands and why is it easy to determine?
Shield volcanoes make up the Hawaiian islands. These volcanoes have low, broad profiles and are typically formed by the eruption of low-viscosity basaltic lava. It is easy to determine the type of volcanoes because of their distinctive shape and the lava flows they produce.
What has Low density and high viscosity?
honey has high viscosity lah, and water has low viscosity. anything that resists flow has high viscosity...lah. honey has high viscosity lah, and water has low viscosity. anything that resists flow has high viscosity...lah.
Why are Hawaiians volcanic eruptions less violent?
Compared with some other volcanoes around the world, the Hawaiian volcanoes are fed by low-viscosity magma with a low gas content. The explosive power of a volcanic eruption is driven by gas trapped in the magma, and magma that is more viscous allows more pressure to build up. The magma in the Hawaiian volcanoes flows out fairly readily.
Does ketchup have low or high viscosity?
High viscosity.
Why are Hawaiian volcanoes shield volcanoes?
Hawaiian volcanoes are shield volcanoes because they are characterized by their broad, gently sloping shape resembling a warrior's shield. This is due to the low viscosity of the basaltic lava they erupt, allowing it to flow easily and travel long distances before solidifying. As a result, shield volcanoes tend to build up gradually over time with successive eruptions, creating their distinctive shape.
What type of volcanoes formed the Hawaiian islands?
The Hawaiian islands were formed by shield volcanoes, which are characterized by long, gentle sloping sides formed by low-viscosity lava flows. These volcanoes are created by the movement of the Pacific Plate over a hot spot in the Earth's mantle, resulting in a chain of volcanic islands.
How do liquid with a high viscosity differ from liquid with low viscosity?
The liquids with high viscosity flow slowly and liquids with low viscosity flow quickly.
How do liquid with a high viscosity differ from liquid with a low viscosity?
The liquids with high viscosity flow slowly and liquids with low viscosity flow quickly.
How do liquids with a high viscosity differ from a liquid with a low viscosity?
Because liquids with a high viscosity flow slowly as to where a liquid with a low viscosity flow quickly
How do liquids with a high viscosity differ from a liquids with a low viscosity?
Because liquids with a high viscosity flow slowly as to where a liquid with a low viscosity flow quickly
