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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.
The mantle is denser than the crust because it contains more what?
The mantle contains more iron, making it denser.the mantle contains more magnesium and less aluminum than the crust .this make sthe mantle denser than the crust.
Why is mantle hotter and denser than the crust?
The mantle is closer to the molten core of earth, so it is constantly heated by it. The crust is exposed to the atmosphere, which has some cooling effect, and the crust is, of course farthest from the core.
How do scientists determine mantles is denser than the crust?
The mantle is composed of basaltic rock, the crust is composed mostly of granitic rock. Basalt is denser than Granite.
What are denser crustal rocks or mantle?
Mantle crust is denser. I say this because most likely less dancer things are floating on of dancer things. Is the same thing with the mantle and the crustal rocks.
Why do seismic waves speed up beneath the surface of continents?
Because earths crust is denser than the mantle
Ocean crust is denser than the continental crust because it contain more of which 3 element?
It is the crust and mantle,and core
Oceanic crust is denser than the continental crust because it contains more of which 3 elements?
It is the crust and mantle,and core
Why does water float on Earth's surface?
Oceanic crust is denser than continental crust, it floats lower in earths mantle.
What are facts about earths upper mantle?
Temperature is about 2000 to 3000 degrees celsius maybe less.The mantle is hot but not the hottest layer.It is is the second layer of the Earth. The mantle is the thickest layer of the earth, it is the layer of the earth beneath the crust.Upper mantle and Lower mantle are the two parts of the mantle, The lower mantle is deeper and denser than the upper mantle .
How subsidence occur?
Subsidence occurs when one plate is denser than the plate it is moving into. It then slips under the less dense plate and melts into the mantle.
Is the crust much more dense than the earth's center?
The earth's crust is less denser than the mantle.
