0
What else can I help you with?
What causes the rocks in the mantle at divergent boundaries to melt?
Rocks in the mantle at divergent boundaries melt due to the decrease in pressure as tectonic plates move apart. This reduction in pressure lowers the melting point of the rocks, causing them to melt and form magma.
mantle is composed of these rocks?
ferro magnesium silicate rocks
What are rocks that come from the mantle?
Rocks that come from the mantle are called mantle rocks. These rocks are typically formed deep within the Earth's mantle and can include peridotite, dunite, and eclogite. Mantle rocks are brought to the surface through processes like volcanic eruptions or tectonic movements.
What is responsible for movement of tectonic plates in lower mantle?
The movement of tectonic plates in the lower mantle is primarily driven by the process of mantle convection. This is caused by the heat released from the Earth's core, which creates circulation patterns in the mantle that can cause the plates to move. The upwelling and downwelling of material in the mantle contribute to the lateral movement of tectonic plates.
The flotational balance achieved between rocks of the crust lithosphere and deeper mantle is called?
Isostasy is the flotational balance achieved between rocks of the crust lithosphere and deeper mantle. This balance is maintained as lighter rocks of the crust "float" on the denser rocks of the mantle below.
What causes the rocks in the mantle at divergent boundaries to melt?
Rocks in the mantle at divergent boundaries melt due to the decrease in pressure as tectonic plates move apart. This reduction in pressure lowers the melting point of the rocks, causing them to melt and form magma.
How do upper mantle rock differ from lower mantle rock?
the upper-mantle rocks are heavier while the lower mantle rocks are semisolid like melted plastic
How do upper mantle rocks differ from lower mantle rock?
the upper-mantle rocks are heavier while the lower mantle rocks are semisolid like melted plastic
What a Mantle?
A mantle is a layer of hot rocks.
What are rocks that come from the mantle called?
Igneous rock.
Can the rocks in the crust move around more easily than the rocks in the lower mantle?
No, crustal rock is cold, hard, and brittle while mantle rock is hot, soft, and plastic. Crustal rock fractures under stress while mantle rock deforms and slowly flows under stress.
What has less density--the crustal rocks or the mantle rocks?
Crustal rock is normally less dense than mantle rock.
What force cause warm molten rock to move upward in the mantle?
When a tectonic plate reaches a certain depth in the mantle, the heat and pressure from being so close to the Earth's core causes certain parts of the plate to melt. The section of the plate that has melted becomes lighter in weight than the rocks surrounding it. This causes it to rise and move upwards in the mantle.
mantle is composed of these rocks?
ferro magnesium silicate rocks
What it the Mantle made of?
the mantle is made of hot lava with rocks and pee
Is the rock in the crust able to move around more easily than the rock in the lower mantle since the rock in the crust moves around differently than rock in the lower mantle?
The rock in the lower mantle moves around easily than the crust. This is because rock in the lower mantle is hotter and closer to its melting point. Rocks in the crust are cooler thus harder to move around.
What are rocks that come from the mantle?
Rocks that come from the mantle are called mantle rocks. These rocks are typically formed deep within the Earth's mantle and can include peridotite, dunite, and eclogite. Mantle rocks are brought to the surface through processes like volcanic eruptions or tectonic movements.
