Characteristic time of thermal and diffusional relaxation

Автор(и)

  • O. Aryasova S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Kyiv, Україна
  • Ya. Khazan S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Kyiv, Україна

DOI:

https://doi.org/10.24028/gzh.0203-3100.v37i6.2015.111174

Ключові слова:

characteristic time, thermal relaxation

Анотація

It is shown that frequently used dimensional estimation of a layer thermal relaxation time, tr, as L2/κ based on the layer thickness, L, and thermal diffusivity, κ, strongly overestimates tr. The correct estimate tr=L22κ should contain a factor of 1/π2 which is of the order of 0.1.

Посилання

Artemieva I. M., 2009. The continental lithosphere: Reconciling thermal, seismic, and petrologic data. Lithos 109(12), 23—46.

Hirth G., Kohlstedt D. L., 2003. Rheology of the upper mantle and the mantle wedge: A view from the experimentalists. In: Inside the Subduction Factory. Vol. 138. Geophys. Monogr. Ser. Р. 83—105.

Khazan Yа. M., Aryasova O. V., 2014. Stability of the boundary layer between the lithosphere and convecting mantle and the steady-state lithospheric geotherm. Izvestiya, Physics of the Solid Earth. 50(4), 543—561.

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Опубліковано

2015-12-01

Як цитувати

Aryasova, O., & Khazan, Y. (2015). Characteristic time of thermal and diffusional relaxation. Геофізичний журнал, 37(6), 99–104. https://doi.org/10.24028/gzh.0203-3100.v37i6.2015.111174

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