What is the density of the lithosphere?

What is the density of the lithosphere?

about 2.7 grams per cubic centimeter

How dense is the upper mantle?

5.5 g/cm3

What is the density of the upper part of the lithosphere?

1). The mean density of the continental crust is 2.8–2.9 g/cm3 in the deeper portion and 2.6–2.7 g/cm3 in the upper portion. The boundary between the Earth’s crust and the lithospheric mantle is known as the Mohorovićić discontinuity (short form: Moho; Fig.

What is the asthenosphere and what is its density?

-Asthenosphere – mean density about 3.3 g/cc. Denser and hotter than lithosphere above. under tremendous pressure and heat so that it is “soft”, near melting point, and flows plastically.

Is the asthenosphere mechanically strong?

The rocks remain solid at depth despite their temperature because of the extreme pressures acting upon them. 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’.

What is called asthenosphere?

Asthenosphere, zone of Earth’s mantle lying beneath the lithosphere and believed to be much hotter and more fluid than the lithosphere. The asthenosphere extends from about 100 km (60 miles) to about 700 km (450 miles) below Earth’s surface.

How does the asthenosphere melt?

When the geotherm crosses the solidus, partial melting starts to occur in the asthenosphere at the depths indicated on the diagram. If this magma escapes to the surface, it will erupt and form a volcano. If the lithosphere thins sufficiently, the geotherm can cross the solidus and partial melting occurs.

What is asthenosphere short answer?

noun. a thin semifluid layer of the earth (100–200 km thick), below the outer rigid lithosphere, forming part of the mantle and thought to be able to flow vertically and horizontally, enabling sections of lithosphere to subside, rise, and undergo lateral movement.

What are the characteristics of the asthenosphere 3 pts?

The characteristics of asthenosphere are it is a layer in the mantle below the crust, it is above of the mesosphere layer and it can flow by deforming like a plastic and carries tectonic plates around as it flows.

Is the asthenosphere gooey?

The Asthenosphere is more fluid than the rigid Lithosphere above it, with a plastic-like texture. This is due to the increased temperature and pressure that rocks experience as they descend into the Asthenosphere from the Lithosphere, making them molten.