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There is olivine within the mantle, but it typically occurs at shallower depths (less than 400 km) as at greater depths than this the pressure causes olivine to become unstable forming what are known as high pressure poly-morphs! These have the same chemical composition but a different crystal structure.
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Which layer in the Earth has a composition similar to the green olivine?
The Earth's upper mantle has a composition similar to the green mineral olivine. Olivine is a common mineral found in the upper mantle, making up a significant portion of its composition.
What is the most abundant component of mantle rocks?
The most abundant component of mantle rocks is silicate minerals, such as olivine, pyroxene, and garnet. These minerals make up the majority of the Earth's upper mantle and are rich in magnesium and iron.
What layer of the earth does olivine come from?
Olivine is a common mineral found in the earth's upper mantle, which is located between the crust and the lower mantle. It is brought to the surface through volcanic activity in the form of lava or magma.
what are the 2 minerals present in mantle of the earth?
The two primary minerals found in the Earth's mantle are olivine and pyroxene. Olivine is a magnesium iron silicate, while pyroxene is a group of silicate minerals containing varying amounts of iron, magnesium, and calcium. These minerals are crucial in understanding the mantle's composition and behavior, as they play a significant role in the mantle's physical properties and dynamics.
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.
What is the composition of the Earth lower mantle?
•Thet Low•The Lower Mantle is made of Olivine, Pyroxene, and Feldspar.v •The Lower Mantle is made of Olivine, Pyroxene, and Feldspar.er Mantle is made of Olivine, Pyroxene, and Feldspar.
What mineral is common in Earth's mantle?
Olivine is the most common mineral in the Earth's mantle.
Which layer in the Earth has a composition similar to the green olivine?
The Earth's upper mantle has a composition similar to the green mineral olivine. Olivine is a common mineral found in the upper mantle, making up a significant portion of its composition.
Which material will most likely be found in the mantle?
Olivine.
What is the lower mantle made out of?
The earth's lower mantle is composed of an olivine mineral with a perovskite structure.
What is the earth's mantle filled with?
The Earths mantle is filled with ferromagnesian rocks with minerals such as Olivine and Pyroxene.
What is the most abundant component of mantle rocks?
The most abundant component of mantle rocks is silicate minerals, such as olivine, pyroxene, and garnet. These minerals make up the majority of the Earth's upper mantle and are rich in magnesium and iron.
What layer of the earth does olivine come from?
Olivine is a common mineral found in the earth's upper mantle, which is located between the crust and the lower mantle. It is brought to the surface through volcanic activity in the form of lava or magma.
What is the lower layer of the mantle composed of?
The lower layer of the mantle is composed of solid rock that is under high pressure and temperature conditions. This layer is known as the lower mantle and is made up of silicate minerals such as peridotite and olivine. It plays a significant role in Earth's mantle convection and the movement of tectonic plates.
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 element make up most of the upper mantle?
The upper mantle is primarily made up of silicate minerals such as olivine, pyroxene, and garnet. These minerals contain elements like silicon, oxygen, magnesium, and iron. Olivine is the most abundant mineral in the upper mantle.
What igneous rock contains mostly pyroxene and olivine?
Ultramafic igneous rocks are comprised mostly of olivine and pyroxene. Examples include peridotite (pegmatic and porphyritic) and komatite.
