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单词 isostasy
释义

Definition of isostasy in English:

isostasy

noun ʌɪˈsɒstəsiaɪˈsɑstəsi
mass nounGeology
  • The equilibrium that exists between parts of the earth's crust, which behaves as if it consists of blocks floating on the underlying mantle, rising if material (such as an ice cap) is removed and sinking if material is deposited.

    〔地质〕地壳均衡

    Example sentencesExamples
    • Changes in relative sea level driven by glacial isostasy may have provided an additional mechanism for deglaciation.
    • We know from isostasy that the crust responds to changing load distributions on its surface by vertical movements.
    • Three main processes are essential to the understanding of mechanisms of large-scale subsidence and uplift: thermal perturbations of the lithosphere, isostasy (mass balancing), and flexure.
    • The thick portions of crust will attain a higher elevation because of isostasy.
    • This approach is based on assumptions of local isostasy, thermal steady state, and constant density beneath the level of compensation.

Derivatives

  • isostatic

  • adjective ʌɪsə(ʊ)ˈstatɪkˌaɪsəˈstædɪk
    Geology
    • Characterized by or involving the equilibrium that exists between parts of the earth's crust.

      isostatic depression of the earth's crust
      Example sentencesExamples
      • Melt injection leads initially to isostatic uplift followed by subsidence as the melt freezes.
      • The removal of mass at the surface by regional erosion causes an upward force of isostatic uplift as the lithosphere acts to re-establish buoyant equilibrium.
      • The backstripping method separates isostatic and compaction effects of sediments from those of tectonic subsidence.

Origin

Late 19th century: from iso- 'equal' + Greek stasis 'station'.

Definition of isostasy in US English:

isostasy

nounīˈsästəsēaɪˈsɑstəsi
Geology
  • The equilibrium that exists between parts of the earth's crust, which behaves as if it consists of blocks floating on the underlying mantle, rising if material (such as an ice cap) is removed and sinking if material is deposited.

    〔地质〕地壳均衡

    Example sentencesExamples
    • Changes in relative sea level driven by glacial isostasy may have provided an additional mechanism for deglaciation.
    • This approach is based on assumptions of local isostasy, thermal steady state, and constant density beneath the level of compensation.
    • We know from isostasy that the crust responds to changing load distributions on its surface by vertical movements.
    • Three main processes are essential to the understanding of mechanisms of large-scale subsidence and uplift: thermal perturbations of the lithosphere, isostasy (mass balancing), and flexure.
    • The thick portions of crust will attain a higher elevation because of isostasy.

Origin

Late 19th century: from iso- ‘equal’ + Greek stasis ‘station’.

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更新时间:2025/6/20 9:04:45