asthenosphere

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These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere.

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Definitions (3)

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  1. noun A zone of the earth's mantle that lies beneath the lithosphere and consists of several hundred kilometers of deformable rock.

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Examples (11)

  • - Cosmogeological PLATE TECTONICS supports rapid CATASTROPHIC PLATE TECTONICS after asteroid impacts and rapid EB geo-transfers (rapid movement of outer nucleus masses into asthenosphere). —  California Literary Review
  • According to the theory of plate tectonics developed in the 1960's the earth's interior is made up of two layers, the outer lithosphere and the inner asthenosphere.
  • The lithosphere essentially "floats" on the asthenosphere and is broken-up into ten major plates.
  • Although the velocity in which the entire plate is moving is relatively constant, the velocity in which material is moving along intersections of plates, also known as fault lines, is not constant and is believed to be changing due to irregularities in the material composing these parts of the earth asthenosphere.
  • These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere. —  Recently Uploaded Slideshows
 

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Etymologies (1)

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  1. Greek asthenēs, weak; see asthenia + sphere.
 

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