How Do The Physical Properties Of The Asthenosphere Differ From The Lithosphere?

How Do The Physical Properties Of The Asthenosphere Differ From The Lithosphere??

The lithosphere is the brittle crust and uppermost mantle. The asthenosphere is a solid but it can flow like toothpaste.The lithosphere is the brittle crust and uppermost mantle

uppermost mantle
The upper mantle of Earth is a very thick layer of rock inside the planet which begins just beneath the crust (at about 10 km (6.2 mi) under the oceans and about 35 km (22 mi) under the continents) and ends at the top of the lower mantle at 670 km (420 mi).

Why is the asthenosphere different from the lithosphere?

While the lithosphere is mostly solid and contains the tectonic plates that cause many natural disasters asthenosphere contains mainly the half molten rocks that give it a fluid flow.

How are the properties of the lithosphere and the asthenosphere different how is this difference important to plate tectonics?

In the lithosphere the rocks are cooler stronger and more rigid than the asthenosphere. It is rock strength that differentiates the lithosphere from the asthenosphere. The differences in strength between rock in the lithosphere and rock in the asthenosphere is a function of temperature and pressure.

What is the physical difference between the lithosphere and the asthenosphere quizlet?

How does the asthenosphere differ from the lithosphere? The lithosphere is rigid and brittle while the asthenosphere is slightly mushy. You just studied 59 terms!

What 3 properties of the asthenosphere are different from the lithosphere?

Comparison of the Lithosphere and Asthenosphere
Lithosphere Asthenosphere
Characterized as elastic and less ductile Has a higher degree of ductility than the lithosphere
Ranges from a depth of 80km and 200 km below the earths surface Extends to a depth of 700km below the earths’ surface

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How does the asthenosphere affect the lithosphere?

Convection currents also stress the lithosphere above and the cracking that often results manifests as earthquakes. According to the theory of plate tectonics the asthenosphere is the repository for older and denser parts of the lithosphere that are dragged downward in subduction zones.

Which region represents the asthenosphere and how does it differ from the lithosphere?

The lithosphere is rigid and is made of the crust and the upper part of the mantle. The asthenosphere is plastic and is made of the softer part of the mantle. The lithosphere is plastic and is made of continental crust. The asthenosphere is rigid and is made of oceanic crust.

Which best describes asthenosphere physical properties?

The asthenosphere (Ancient Greek: ἀσθενός [asthenos] meaning “without strength” and σφαίρα [sphaira] meaning “sphere”) is the highly viscous mechanically weak and ductile region of the upper mantle of Earth. It lies below the lithosphere between approximately 80 and 200 km (50 and 120 miles) below the surface.

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What property distinguishes the lithosphere asthenosphere and lithosphere within the Earth’s mantle?

Lithosphere and asthenosphere are divisions based on mechanical properties. The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle rigid solid. The asthenosphere is partially molten upper mantle material that behaves plastically and can flow.

How do the rocks in the lithosphere and the asthenosphere differ?

The primary difference between the lithosphere and the asthenosphere is that the rocks of the asthenosphere are more ductile than those in the lithosphere which means that they can flow like silly putty whereas the rocks in the lithosphere just bend or break. That is why the lithosphere is made up of tectonic plates.

What is the main difference between the lithosphere and the asthenosphere contrast the oceanic lithosphere and continental lithosphere?

The lithosphere differs from the asthenosphere because the lithosphere is the solid outer layer of the earth and the asthenosphere is below the mantle and made of slow flowing rock. You just studied 56 terms!

Which of the following statements accurately describes the difference between the lithosphere and the asthenosphere?

Which of the following statements accurately describes the difference between the lithosphere and the asthenosphere? The lithosphere is a strong outer layer of Earth that sits atop the warmer and weaker asthenosphere. … Which of Earth’s oceans was created by the breakup of the supercontinent Pangaea?

What physical property makes the asthenosphere unique?

The material of which the asthenosphere is composed can be described as plastic-like with much less rigidity than the lithosphere above it. This property is caused by the interaction of temperature and pressure on asthenospheric materials. Any rock will melt if its temperature is raised to a high enough temperature.

What is the asthenosphere and describe its characteristics?

The asthenosphere is the denser weaker layer beneath the lithospheric mantle. It lies between about 100 kilometers (62 miles) and 410 kilometers (255 miles) beneath Earth’s surface. The temperature and pressure of the asthenosphere are so high that rocks soften and partly melt becoming semi-molten.

Why is the asthenosphere weaker than the lithosphere?

Why is the asthenosphere weaker than the lithosphere? The asthenosphere is warmer and has a lower viscosity than the lithosphere. Determine which type of heat transfer occurs in each layer or at each boundary. … Heat flow is high where crust is being created.

What is the connection between lithosphere and asthenosphere?

The lithosphere is the solid outer part of the Earth. It includes the brittle upper portion of the mantle and the crust the planet’s outermost layers. The lithosphere is located below the atmosphere and above the asthenosphere. The asthenosphere is made of melted rock that gives it a thick sticky consistency.

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How do the asthenosphere and lithosphere interact?

The tectonic plates are made up of Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. … The flowing asthenosphere carries the lithosphere of the Earth including the continents on its back.

What is the role of the lithosphere and asthenosphere in plate tectonics?

The lithosphere (litho:rock sphere:layer) is the strong upper 100 km of the Earth. The lithosphere is the tectonic plate we talk about in plate tectonics. The asthenosphere (a:without stheno:strength) is the weak and easily deformed layer of the Earth that acts as a “lubricant” for the tectonic plates to slide over.

What properties of the asthenosphere allow the lithospheric plates to glide over it?

Plate Tectonics

As the asthenosphere is hot and flowing it is so because of the convection of heath from the innards of the earth. This offers quite a lubricating layer which allows the rigid plates of the lithosphere to slide easily.

Is asthenosphere part of lithosphere?

The lithosphere is the solid outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust the outermost layers of Earth’s structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below.

Why does lithosphere float on asthenosphere?

Since the Lithosphere has a lower density it floats on top of the Asthenosphere similar to the way in which an iceberg or a block of wood floats on water. The lower mantle below the Asthenosphere is more rigid and less plastic.

What is the lithosphere and describe its characteristics?

The lithosphere is Earth’s outermost layer composed of rocks in the crust and upper mantle that behave as brittle solids. The rigid lithosphere sits on top of the asthenosphere a layer of the mantle in which rocks are hot and deformable.

What property distinguishes the Earth’s crust mantle and core Brainly?

Answer: Core mantle and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass consisting of oceanic crust and continental crust is often more felsic rock. The mantle is hot and represents about 68 percent of Earth’s mass.

Which statement below best compares the lithosphere to the asthenosphere according to the lecture?

Which statement below best compares the lithosphere to the asthenosphere according to the lecture? The lithosphere is a brittle solid and the asthenosphere is a ductile solid.

What property distinguishes the earths crust mantle and core?

The crust is a silicate solid the mantle is a viscous molten rock the outer core is a viscous liquid and the inner core is a dense solid.

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What is the relationship between the lithosphere and asthenosphere quizlet?

The relationship between the Lithosphere Asthenosphere and Mesosphere is the lithosphere contains the tectonic plates the Asthenosphere the plates move on top of them and the Mesosphere convection currents move in this layer help drive the plates in the Lithosphere.

What is the difference between the lithosphere and the crust?

What is the difference between the crust and lithosphere? The crust (whether continental or oceanic) is the thin layer of distinctive chemical composition overlying the ultramafic upper mantle. … The lithosphere is the rigid outer layer of the Earth required by plate tectonic theory.

How does the lithosphere of the deep ocean basins differ from the lithosphere of the continents?

The lithosphere of the deep-ocean basin is thinner and denser than the lithosphere of the continents. … New oceanic crust slowly moves away from the ridge system and hence is progressively older with distance from the ridge.

Which of these is false about lithospheric plates Brainly?

Explanation: Lithospheric plates do not have same thickness everywhere because the plates changes its thickness due to intense heat in the Earth’s core as these plates move from Earth’s crust and upper mantle to a deeper plasticine mantle.

Which one of the following describes the lithosphere?

Lithosphere is the rigid rocky outer layer of the earth consisting of the crust and the solid outermost layer of the upper mantle. It extends to a depth of about 100 km.

Why is the asthenosphere weaker than the lithosphere quizlet?

Why is the asthenosphere weaker than the lithosphere? The asthenosphere is warmer and has a lower viscosity than the lithosphere.

How does asthenosphere become lithosphere?

The rocks above the asthenosphere being the uppermost mantle plus the overlying crust (either continental or oceanic) behave mechanically as one and comprise what geologists call the ‘lithosphere’. The lithosphere moves as one over the weaker plastic asthenosphere.

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Why are the properties of the asthenosphere important?

The asthenosphere keeps Earth’s crust from getting too hot. … The depth of the asthenosphere keeps pressure on Earth’s core. The asthenosphere allows Earth’s crust to move.

Why might the asthenosphere be considered the most important in terms of plate tectonic theory?

The asthenosphere is now thought to play a critical role in the movement of plates across the face of Earth’s surface. Some observers have described the asthenosphere as the ‘lubricating oil’ that permits the movement of plates in the lithosphere. …

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