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the upper-mantle rocks are heavier while the lower mantle rocks are semisolid like melted plastic
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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
Why is the lower mantle denser the the upper mantle?
The lower mantle is under greater pressure than the upper mantle, compressing the rock into a denser form.
Is the upper or lower mantle dense?
No, it is hotter because it is closer to the inner core
What is the state of matter of the Earth's upper mantle?
The Earth's upper mantle is composed of solid rock that flows through liquid rock, also known as lava.
What three differences between the upper and lower mantle?
The upper mantle is composed mostly of solid rock, while the lower mantle is under higher pressure and temperature, causing it to behave more like a viscous fluid. The upper mantle is part of the Earth's lithosphere and is involved in plate tectonics, while the lower mantle is located in the asthenosphere and undergoes convection currents. The upper mantle is closer to the Earth's surface and extends to a depth of about 410 miles, while the lower mantle extends from about 410 miles to 1,800 miles beneath the surface.
What are parts of the earths mantle?
The Earth's mantle consists mainly of the upper mantle and the lower mantle. The upper mantle is made up of solid rock, while the lower mantle is composed of more solid and dense rock. The mantle plays a crucial role in the movement of tectonic plates and the convection currents that drive plate tectonics.
What layers make up the mantle?
The mantle consists of two main layers: the upper mantle and the lower mantle. The upper mantle is composed of solid rock that can flow slowly over time. The lower mantle is composed of solid rock under high pressure and temperature conditions.
What does the upper mantle and lower mantle form?
The upper mantle and lower mantle together form the Earth's mantle, which is the layer of rock between the Earth's crust and core. This region plays a critical role in plate tectonics and the movement of Earth's lithosphere.
What is the subdivision of the mantle?
The mantle is subdivided into the upper mantle and the lower mantle. The upper mantle is closer to the Earth's surface and consists of solid rock that can flow slowly over long periods of time. The lower mantle is located beneath the upper mantle and is more rigid due to higher pressure and temperature.
What are the layers of Earth today?
crust, upper mantle, lower mantle, outter core,inner core,rock
What is the Difference between the upper and lower mantle?
The main difference between the upper and lower mantle is their depth within the Earth. The upper mantle is located closer to the Earth's surface, extending from the crust to a depth of about 410-660 km, while the lower mantle lies beneath the upper mantle, extending from around 660-2,891 km deep. Additionally, the upper mantle is more rigid and composed of mainly solid rock, while the lower mantle experiences higher pressures and temperatures, leading to more plastic behavior.
What are the two parts of the mantle?
The mantle has two parts: the upper mantle, which is directly below the Earth's crust and makes up about 15% of the Earth's volume, and the lower mantle, which extends from the top of the lower mantle to the outer core. The mantle is mainly composed of solid rock, but it can deform and flow slowly over long periods of time.
