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Magma in the mantle moves in a current called a convection current. A convection current is a circular flow of a substance in which a hot substance rises, cools, sinks, gets hot again, and repeats. In this way, magma in the mantle flows in currents of more hot or more cool magma.
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How Convection currents in the Earth and mantle are responsible for the movement of tectonic plates. As shown in the diagram heat from the Earth and core is the driving force that moves magma in a?
Convection currents in the Earth's mantle are driven by the heat from the Earth's core, causing magma to rise and cool, then sink as it loses heat. This continuous cycle creates a flow that exerts force on the tectonic plates above. As the magma moves, it drags the plates along with it, leading to their movement. This process is fundamental to the dynamics of plate tectonics, resulting in phenomena such as earthquakes and volcanic activity.
What is liquid rock?
Ah, liquid rock is a fascinating thing, my friend. It's just like when you're painting with warm, flowing colors on your canvas. When rock deep beneath the Earth's surface gets so hot that it melts, it turns into liquid rock, also known as magma. This magma can eventually make its way to the surface and flow out as lava, creating beautiful landscapes and new land for all of us to enjoy.
Does the increase in silica increase the viscosity of a magma?
it is normally intermediate flow because of the silica content.
What happens when rising magma breaks through the earth's crust?
When magma comes in contact with water first the water will stem because the magma is so hot the water is at or past its boiling point them the magma will harden fast because instead of its slow cooling prossess it is spead up from the waters temperature it is a big mess :) luvhh jasmine chanda
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.
