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- DictionaryAs·then·o·sphere/asˈTHenəˌsfir/
noun
- 1. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
The asthenosphere (from Ancient Greek ἀσθενός (asthenós) 'without strength') is the mechanically weak [1] and ductile region of the upper mantle of Earth. It lies below the lithosphere , at a depth between ~80 and 200 km (50 and 120 mi) below the surface, and extends as deep as 700 km (430 mi).
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.
The meaning of ASTHENOSPHERE is a zone of a celestial body (such as the earth) which lies beneath the lithosphere and within which the material is believed to yield readily to persistent stresses.
The upper part of the Earth's mantle, extending from a depth of about 75 km (46.5 mi) to about 200 km (124 mi). The asthenosphere lies beneath the lithosphere and consists of partially molten rock.
Jun 11, 2018 · The asthenosphere is the ductile layer situated beneath Earth ’ s rigid lithosphere. It was first named in 1914 by the British geologist Joseph Barrell, who divided Earth ’ s overall structure into three major sections: the lithosphere, or outer layer of rock-like material; the asthenosphere; and the centrosphere, or central part of the planet.
Sep 21, 2023 · The asthenosphere is a hot, semi-fluid layer inside the Earth’s mantle. It lies beneath the rigid lithosphere, extending from approximately 100 to 700 kilometers (62 to 435 miles) below the...
ASTHENOSPHERE definition: 1. the thin, almost liquid, layer under the hard rock that forms the outer layer of the earth: 2…. Learn more.
Aug 16, 2024 · That zone of the earth's mantle which lies beneath the relatively rigid lithosphere, between 50 and 300 km below the surface, and representing a mechanical boundary between more rigid regions above and below.
ASTHENOSPHERE meaning: 1. the thin, almost liquid, layer under the hard rock that forms the outer layer of the earth: 2…. Learn more.
Jan 11, 2021 · Asthenosphere. The asthenosphere is solid upper mantle material that is so hot that it behaves plastically and can flow. The lithosphere rides on the asthenosphere.
