What is the upper mantle of the earth made of? - Answers
Oct 10, 2024 · The upper mantle is a solid layer of rock located beneath the Earth's crust. It is part of the Earth's mantle and extends from the base of the crust to a depth of about 660 kilometers.
What are the three main layers of earth based on composition?
Jun 20, 2024 · Is earth divided by composition into three layers? The 3 main layers of earth (crust, mantle, core) are divided into crust, upper mantle, lower mantle, outer core, and inner core.
What is the difference between compositional layers and
Jun 21, 2024 · Compositional layers refer to the different layers of the Earth based on their chemical composition, such as the crust, mantle, and core. Mechanical layers, on the other …
Why are volcanoes not found at transform boundaries? - Answers
Feb 13, 2025 · Volcanoes are not found at transform boundaries because these boundaries involve the sliding of tectonic plates past each other horizontally, without any significant …
What is the composition of the earths mantle? - Answers
The Earth's mantle is composed of rocks that have higher concentrations of mafic minerals (containing iron and magnesium) and lower in concentrations of the felsic minerals (aluminum …
Why are silicate minerals the most abundant in Earth's crust and …
Feb 13, 2025 · The Earth's mantle is primarily made up of silicate minerals containing elements such as oxygen, silicon, magnesium, and iron. These elements make up the majority of the …
What is the composition of Venus? - Answers
May 22, 2024 · Venus is made up of a central iron core and rocky mantle, similar to the composition of Earth.. Nickel and iron, just like the Earth. Venus. It is similar in size, density, …
What is the composition and approximate thickness of the mantle?
Jun 15, 2024 · Composition of mantle? The mantle is composed primarily of silicate minerals rich in magnesium and iron, such as olivine, pyroxene, and garnet.
How have scientists determined the composition of earth's mantle …
Jun 12, 2024 · By analyzing how these waves travel through the Earth, scientists have been able to determine the density and composition of different layers like the crust, mantle, and core.
How does the velocity of P waves change abruptly when passing …
Feb 12, 2025 · At the mantle-core boundary, there is a change in density and composition of the material. The increase in density and the solid state of the core allow P waves to travel …