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What is the composition earths mantle?
The mantle is 82% of Earth's volume. It is composed of ultramafic rock called peridotite, which is hot enough to flow.
What rock does the upper mantle contain?
The dominant rock type of the upper mantle is peridotite.
What layer is Composed of peridotite?
The layer composed of peridotite is the mantle, which is located between the Earth's crust and core. Peridotite is the main rock type found in the upper mantle and is rich in minerals such as olivine and pyroxene.
Where does a peridotite rock come from?
Peridotite rock comes from the Earth's mantle, specifically the upper part of the mantle known as the upper mantle. It is formed from the cooling and solidification of magnesium- and iron-rich magma beneath the Earth's surface. Peridotite is typically brought to the surface through processes like mantle upwelling or tectonic movement.
What is the composition of the outer mantle?
peridotite
Which earth layer is made of peridotite?
The Earth layer that is made of peridotite is the mantle. Peridotite is a type of rock rich in olivine and pyroxene minerals that primarily makes up the upper mantle beneath the Earth's crust.
Why is peridotite more predominant in the upper mantle than eclogite?
Two reasons: first, peridotite is native to the mantle where as eclogite is formed from the metamorphism of oceanic crust; secondly, eclogite has a much higher density than peridotite and so it sinks to the lower mantle.
What does rocks in earths mantle contain a higher percentage of what than rocks in earths crust?
iron and magnesium
How have scientists determined the composition of the earths mantle?
by studying seismic wave travel times, scientist have determined that the lithosphere, which includes the crust and the top of the upper mantle is made up primaraly of the ingenueos rocks granite, basalt and peridotite
What is garnet peridotite?
Garnet peridotite is a type of rock that forms in the Earth's mantle and contains a high proportion of both garnet and peridotite minerals. It is commonly found in subduction zones where oceanic plates are forced beneath continental plates. Garnet peridotite is important in understanding the processes that occur in the Earth's mantle.
What is the name of the rock that makes up Mars' mantle?
The mantle of Mars is probably made of peridotite, like Earth's mantle.
What is the upper most mantle rock like?
The uppermost mantle rock is Peridotite, which is mostly olivine and pyroxene but varies somewhat in chemical composition. Generally it is a coarse grained greenish rock. The name peridotite is derived from the gemstone peridot, which is pale green olivine.
