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What (who) is isostasy$41120$ - definition
Lithospheric flexure
REGIONAL ISOSTASY
Flexural isostasy
Lithospheric flexure (also called regional isostasy) is the process by which the lithosphere (rigid, thin outer layer of the Earth) bends under the action of forces such as the weight of a growing orogeny or changes in ice thickness related to glaciation. The lithosphere rests on the asthenosphere, a viscous layer that in geological time scales behaves like a fluid.
isostasy
STATE OF GRAVITATIONAL EQUILIBRIUM BETWEEN EARTH'S CRUST AND MANTLE
Isostacy; Land rise; Isostatic theory; Pratt hypothesis; Airy hypothesis; Isostatic equilibrium; Depth of compensation; Isostatic anomaly
[??'s?st?si]
¦ noun Geology the equilibrium that exists between parts of the earth's crust, which rise if material (such as an ice cap) is removed and sink if material is deposited.
Derivatives
isostatic adjective
Origin
C19: from iso- + Gk stasis 'station'.
Isostasy
STATE OF GRAVITATIONAL EQUILIBRIUM BETWEEN EARTH'S CRUST AND MANTLE
Isostacy; Land rise; Isostatic theory; Pratt hypothesis; Airy hypothesis; Isostatic equilibrium; Depth of compensation; Isostatic anomaly
·add. ·noun The state or quality of being isostatic.
II. Isostasy ·add. ·noun general equilibrium in the earth's crust, supposed to be maintained by the yielding or flow of rock material beneath the surface under gravitative stress. By the theory of isostasy each unit column of the earth, from surface to center, has approximately the same weight, and the continents stand higher than the ocean beds chiefly because the material of the crust has there less density.
