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Magma will be very thick and sticky when it has a high silica content, which increases its viscosity. This is often found in volcanic environments associated with continental crust, where the magma cools slowly and forms rhyolitic or andesitic compositions. Additionally, lower temperatures can contribute to its thickness, as cooler magma is less fluid. These conditions typically result in explosive volcanic eruptions due to the difficulty in gas escape.
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Does a volcano erupt quietly if its magma is thick and sticky?
Usually very viscous magma is rich in gasses, so it will erupt explosively, forming clouds of ash and pumice rather than lava flows. If the magma is fairly depleted in gasses then it may form a lava dome. The lava in this case is too viscous to flow away from the vent, so instead it piles up on top of it. Such domes may sometimes form thick, short lava flows called coulees.
Why is the amount of Silica in magma important?
The amount of silica in magma determines its viscosity or flowability. Magma with high silica content is more viscous and tends to trap gases, leading to explosive eruptions. Low-silica magma has lower viscosity and allows gas to escape more easily, resulting in less explosive eruptions.
How does the amount of silica content change the viscosity of magma How does this affect the flow of magma?
The amount of silica and water affect the viscosity of the magma. The more viscous the magma, the slower the flow rate and the shorter and the thicker the flows. Silica makes for a more viscous magma.
What can cause the most explosive volcano?
If you get a very sticky magma (molten rock) which can occur due to the composition of the magma it makes it hard for gas to escape (e.g. think of blowing bubbles through honey and water, its harder through honey), when the gas does escape out of these sticky magma's it has built up a lot of pressure and explodes.
Correct order of decreasing magma viscosity?
The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.
Does a volcano erupt quietly if its magma is thick and sticky?
Usually very viscous magma is rich in gasses, so it will erupt explosively, forming clouds of ash and pumice rather than lava flows. If the magma is fairly depleted in gasses then it may form a lava dome. The lava in this case is too viscous to flow away from the vent, so instead it piles up on top of it. Such domes may sometimes form thick, short lava flows called coulees.
Why is the amount of Silica in magma important?
The amount of silica in magma determines its viscosity or flowability. Magma with high silica content is more viscous and tends to trap gases, leading to explosive eruptions. Low-silica magma has lower viscosity and allows gas to escape more easily, resulting in less explosive eruptions.
What is Silica rich thick magma called?
Silica-rich thick magma is called rhyolite. It contains high levels of silica, making it very viscous and typically light in color. Rhyolite is associated with explosive volcanic activity due to the build-up of pressure caused by the slow movement of its thick lava.
How does the amount of silica content change the viscosity of magma How does this affect the flow of magma?
The amount of silica and water affect the viscosity of the magma. The more viscous the magma, the slower the flow rate and the shorter and the thicker the flows. Silica makes for a more viscous magma.
What is Venus atmopheric conditions?
Venus is generally very hot and the atmosphere is very thick and full of clouds.
What can cause the most explosive volcano?
If you get a very sticky magma (molten rock) which can occur due to the composition of the magma it makes it hard for gas to escape (e.g. think of blowing bubbles through honey and water, its harder through honey), when the gas does escape out of these sticky magma's it has built up a lot of pressure and explodes.
When magma does crystallization what rock does it make?
That entirely depends on what type of magma it is and under what conditions it crystallizes. If you are looking for a general rock type, the answer is igneous, but that's very general.
Correct order of decreasing magma viscosity?
The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.
Are milkshakes sticky?
yes they are very sticky
Why do volcanoes with very viscous magmas erupt the most explosively?
Volcanoes with very viscous magmas tend to erupt explosively due to the high resistance to gas escape. When magma is thick and sticky, gas bubbles can become trapped, leading to increased pressure within the magma chamber. Once the pressure exceeds the strength of the surrounding rock, it results in a violent eruption as the gas escapes rapidly, fragmenting the magma into pyroclastic material and causing explosive outbursts. This is contrasted with low-viscosity magmas, which allow gases to escape more easily and typically result in effusive eruptions.
Some sticky substances are yucky things?
Some sticky substances are very yucky things. Boogers are sticky and they are very nasty things. Molasses is also sticky.
What will happens when you add kerosene to diesel or petrol engine?
kerosene is thick fuel. when it will pass through fuel injection left it sticky and there will be a very adverse effect on the piston.
