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What rock makes up the crust and upper mantle?
The predominant rock in the Earth's crust and upper mantle is called silicate rock, composed mainly of silicon and oxygen. This type of rock is known as "peridotite" in the mantle and "granite" in the crust.
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 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.
What rock does the upper mantle contain?
The dominant rock type of the upper mantle is 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.
Much of the upper mantle thought to be made of granite true or false?
False. The upper mantle is believed to be composed primarily of peridotite.
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.
What is the mineralogy of earths mantle?
The Earth's mantle is primarily composed of silicate minerals rich in magnesium and iron. The dominant mineral types include olivine, pyroxenes, and garnet, with olivine being the most abundant at the upper mantle. The mantle also contains other minerals like peridotite and eclogite, which can form under high-pressure conditions. Overall, these minerals contribute to the mantle's properties, including its ability to flow slowly over geological time.
Where is peridotite found in the Earth?
It is found in the upper mantle due to it's having to become a metamorphic rock.
What material do scientists believe makes up large part of the upper mantle?
A mineral called peridotite.
Is much of the upper mantle made of granite?
No, the upper mantle is primarily composed of peridotite, a rock rich in the minerals olivine and pyroxene. Granite is more commonly found in the Earth's continental crust, not in the mantle.
Is probably closest in chemical composition to the upper mantle?
The Earth's upper mantle is composed mainly of silicate minerals rich in magnesium and iron, such as olivine and pyroxene. Basalt is a type of volcanic rock that is commonly found in the upper mantle and has a similar chemical composition to the rocks in the upper mantle.
