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- Asthenosphere | Mantle Layer, Plate Tectonics Thermal Plumes | Britannica
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
- Asthenosphere: Thickness Properties | – Virtual Workers of America
On average it is about 100 kilometers thick, but in some areas it can be up to 200 kilometers thick Unlike the asthenosphere, it is not plastic and moves as a whole on the asthenosphere The asthenosphere is the zone in Earth’s upper mantle that lies directly beneath the lithosphere
- Asthenosphere - Wikipedia
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 c 80 and 200 km (50 and 120 mi) below the surface, and extends as deep as 700 km (430 mi)
- 10 Things about the Asthenosphere - Geology Base
It has an average thickness of about 250 km (155 mi) and a sharp step-like increase of seismic waves marks it The transition zone is sometimes known as the mesosphere
- How Thick Is the Asthenosphere and Why Does It Vary?
Conversely, under older, cooler continental crust, particularly beneath stable continental interiors known as cratons, the asthenosphere can be much thicker, extending to depths of 250 to 300 kilometers (155 to 186 miles) or even up to 400 kilometers
- Everything you need to know about the asthenosphere
The asthenosphere is a malleable layer of the Earth located below the lithosphere Its thickness ranges from 62 to 217 miles, with temperatures of 300 to 500 degrees Celsius
- The Lithosphere and the Asthenosphere - The Layered Earth
Asthenosphere: Directly below the lithosphere lies a section of the upper mantle known as the asthenosphere The asthenosphere is about 200 km (approximately 124 miles) thick
- How thick is the asthenosphere? - CK-12 Foundation
The thickness of the asthenosphere, which is a part of Earth's upper mantle, varies However, it is generally considered to be approximately 100 km to 700 km thick
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