0
Earth's mantle is a rocky shell about 2,890 km (1,800 mi) thick that constitutes about 84 percent of Earth's volume. Two main zones are distinguished in the upper mantle: the inner asthenosphere composed of flowing rock in the state of plasticity, about 200 km thick, and the lowermost part of the lithosphere, composed of rigid rock, about 50 to 120 km thick. A thin crust, the upper part of the lithosphere, surrounds the mantle and is about 5 to 75 km thick. The mantle is divided into sections which are based upon results from seismology. These layers (and their depths) are the following: the upper mantle (starting at the Moho, or base of the crust around 7 to 35 km, downward to 410 km), the transition zone (410-660 km), the lower mantle (660-2891 km), and in the bottom of the latter region there is the anomalous D" layer with a variable thickness (on average ~200 km thick)
What else can I help you with?
Is the lower mantle of the Earth a solid or liquid?
the lower mantle of earth is a solid
How deep is the mantal?
The Earth's mantle extends from about 35 kilometers (22 miles) below the Earth's surface to approximately 2,900 kilometers (1,800 miles) deep, reaching the outer core. It makes up about 84% of the Earth's total volume and is primarily composed of silicate minerals rich in iron and magnesium. The mantle is divided into the upper and lower mantle, with the upper mantle being more rigid and the lower mantle being more fluid in nature.
What colour is the lower mantle?
The lower mantle is believed to be composed mainly of silicate minerals such as perovskite and magnesiowüstite. These minerals are not thought to have a specific color, as they are located deep within the Earth where light does not penetrate.
Are mines deep enough to reach the mantle?
No, mines are not deep enough to reach the Earth's mantle. The Earth's mantle is located about 25 miles beneath the Earth's surface, while most mines only reach depths of a few miles.
What is the Difference between the upper and lower mantle?
The main difference between the upper and lower mantle is their depth within the Earth. The upper mantle is located closer to the Earth's surface, extending from the crust to a depth of about 410-660 km, while the lower mantle lies beneath the upper mantle, extending from around 660-2,891 km deep. Additionally, the upper mantle is more rigid and composed of mainly solid rock, while the lower mantle experiences higher pressures and temperatures, leading to more plastic behavior.
Is the second layer of the earth the upper mantle or the lower mantle?
upper mantle
How many sections does the mantle have?
The Earth's mantle is typically divided into two main sections: the upper mantle and the lower mantle. The upper mantle lies beneath the Earth's crust and extends down to a depth of about 410 kilometers, while the lower mantle extends from about 410 to 2,890 kilometers below the Earth's surface.
What layer of earth contains the lower mantle?
The lower mantle is located within the Earth's mantle, which lies between the Earth's crust and the outer core. The mantle is divided into the upper mantle and the lower mantle, with the lower mantle extending from about 660 kilometers (410 miles) to approximately 2,900 kilometers (1,800 miles) below the Earth's surface. It is composed of solid rock that can flow slowly over geological time.
Which layer of the earth contains the lower mantle?
The lower mantle is located in the middle layer of the Earth's interior, known as the mantle. The mantle is divided into two main regions: the upper mantle and the lower mantle. The lower mantle is situated beneath the upper mantle and above the outer core.
What does the upper mantle and lower mantle form?
The upper mantle and lower mantle together form the Earth's mantle, which is the layer of rock between the Earth's crust and core. This region plays a critical role in plate tectonics and the movement of Earth's lithosphere.
Is the earths lower mantle hot?
the average temperature for the Earth's lower mantle is 5400 degrees
What is the lower mantle made out of?
The earth's lower mantle is composed of an olivine mineral with a perovskite structure.
