0
The viscosity (resistance to runniness) of magma affects the rate at which it rises up through the mantle. High viscosity magma rises slowly because it's thick and sticky, and low viscosity magma rises quickly (like the big island of Hawaii). Low viscosity magma is less likely to erupt explosively because it has less chance to build up pressure. High viscosity magma is the opposite and a lot of pressure has to build up before it will erupt, which causes a more explosive/sudden eruption.
What else can I help you with?
Which of the Earth's layers does the magma come?
Magma is fluid molten rock that exists under the Earth's crust.
Where does magma originate?
Magma originates from the Earth's mantle, which is a layer of hot, semi-solid rock located beneath the Earth's crust. It forms when rocks in the mantle melt due to high temperatures and pressure. Magma can then rise to the Earth's surface through volcanic activity, such as volcanic eruptions.
Why does magma in the mantle rise through the crust above it?
magma comes from the outer core and when an earthquake or something happends, a crack froms and the pressure of lava shoots up like a geyser.
What must happen first before magma rise to the surface?
Before magma can rise to the surface, it must first be generated through melting of the Earth's mantle or crust. This melting can be caused by an increase in temperature, a decrease in pressure, or the addition of volatiles. Once magma is generated, it can rise towards the surface through fractures and conduits in the Earth's crust.
What has to happen before rock from the earth's mantle become a new piece of crust?
It has to harden
Most magma forms in?
the Earth's mantle. As temperatures increase with depth, rocks partially melt to form magma. This magma can rise towards the surface through volcanic activity.
Which of the Earth's layers does the magma come?
Magma is fluid molten rock that exists under the Earth's crust.
Where does magma originate?
Magma originates from the Earth's mantle, which is a layer of hot, semi-solid rock located beneath the Earth's crust. It forms when rocks in the mantle melt due to high temperatures and pressure. Magma can then rise to the Earth's surface through volcanic activity, such as volcanic eruptions.
Magma sometimes approaches or escapes onto Earth's surface Where does this magma form?
Magma typically forms in the Earth's mantle, which is a layer beneath the crust. It forms as a result of the melting of rocks due to high temperature and pressure within the mantle. This molten rock can then rise to the surface through volcanic activity.
What name is given to molten underground?
Magma is the name given to molten underground rock. It can be found beneath the Earth's surface in the mantle and can eventually rise to the surface through volcanic activity.
Area in the Earth's mantle hot enough to melt rock into magma and create volcanoes?
All of the Earth's mantle is hot. And while some geologists believe that there are Mantle plumes (or hot spots) current evidence seems to support a view that mantle plumes do not exist. What causes magma to rise up from the lower crust and mantle is the convection of the mantle and therefore the places where most heat (and magma) is coming up to the surface is along the mid oceanic ridges.
What must happen first before magma rise to the surface?
Before magma can rise to the surface, it must first be generated through melting of the Earth's mantle or crust. This melting can be caused by an increase in temperature, a decrease in pressure, or the addition of volatiles. Once magma is generated, it can rise towards the surface through fractures and conduits in the Earth's crust.
Why does magma in the mantle rise through the crust above it?
magma comes from the outer core and when an earthquake or something happends, a crack froms and the pressure of lava shoots up like a geyser.
What has to happen before rock from the earth's mantle become a new piece of crust?
It has to harden
When the mantle is heated the magma rises because?
When it is heated it becomes less dense (i.e. lighter). The more dense (i.e. heavier) magma sinks while the less dense magma rises to the top. It will eventually cool again causing a convection current within the mantle.
Molten rock under the ground?
Molten rock under the ground is called magma. It is formed from the melting of rocks in the Earth's mantle. Magma can rise to the surface through volcanic eruptions, or it can solidify underground to form igneous rock.
The molten rock that is found in the upper mantle are?
called magma. Magma is formed when rock in the upper mantle melts due to high temperature and pressure. This molten rock can then rise to the surface and solidify to form igneous rocks.
