. . . The asthenosphere is solid upper mantle material that is so hot that it behaves like plastic and can flow The lithosphere rides on the asthenosphere The asthenosphere is solid but it can flow, like toothpaste The asthenosphere and Lithosphere constitute the utmost concentric layers of our earth The asthenosphere encompasses much of the upper mantle of the earth Then, the lithosphere
What are the characteristics of the asthenosphere? - BYJUS The characteristics of the asthenosphere are that it is composed of semi-fused and solid materials The asthenosphere is responsible for the renewal and expansion of the ocean floor Asthenosphere The asthenosphere is the upper zone of our Earth’s mantle Located below the lithosphere, approximately between 30 and 130 kilometres deep It is formed or composed of solid and semi – fused
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . The portion of the interior beyond the crust is called the mantle It is in a solid-state It has a density higher than the crust portion The thickness ranges from 10-200 km The mantle extends from Moho’s discontinuity to a depth of 2,900 km The asthenosphere is the upper portion of Mantle It is the chief source of magma that finds its way to the surface during volcanic eruptions The
Important Layers of the Earth Questions with Answers The upper mantle is predominantly solid, but this mantle’s malleable sections create tectonic activity Two sections of the upper mantle are frequently recognised as distinct areas of Earth’s structure: the asthenosphere and the lithosphere 5) Explain the lower mantle The lower mantle lies between 660 kilometres and 2,891 kilometres in depth
What is Lithosphere? - BYJUS What is Lithosphere? The lithosphere is the rigid, outermost shell on Earth It is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater The outermost shell of a rocky planet, the crust, is defined on the basis of its chemistry and mineralogy This includes the crust and the uppermost mantle, which constitute the
Earth’s Interior - BYJUS The upper position of the mantle of the earth is called the asthenosphere which is a weaker zone It is from this weaker zone the molten rock materials find their way to the surface The molten rock material found in the interior of the earth is called magma Once the magma reaches the earth’s surface it is called lava
Different Layers of the Earth - BYJUS Earth comprises four separate layers Geologists believe that as the Earth cooled, the heavier and denser material sank into the centre, and the lighter ones rose towards the top Due to this, the outermost layer is made of the lightest materials, such as rocks and granites, and the innermost layer consists of nickel and iron Let’s discuss the different layers of the earth
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . The rocky outer layer of the Earth is known as the lithosphere The lithosphere consists of seven or eight major plates along with many minor plates The lithosphere is composed of seven or eight major plates and many minor plates Following are the layers of the lithosphere Crust Mantle Outer core Inner core Lithosphere Asthenosphere Outer core Inner core Read more: Plate Tectonics Important
BYJUS Answer: b) FALSE Explanation: The upper portion of the mantle is known as the asthenosphere 5 Why is the term ‘SIAL’ used to refer to the crust and lithosphere? Since the major constituent minerals of the crust are silica (Si) and aluminium (Al), it is referred to as SIAL 6 Which among the following is made of solid rocks?