Characteristic time of thermal and diffusional relaxation

Authors

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

DOI:

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

Keywords:

characteristic time, thermal relaxation

Abstract

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=L2/π2κ should contain a factor of 1/π2 which is of the order of 0.1.

References

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.

Downloads

Published

2015-12-01

How to Cite

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

Issue

Vol. 37 No. 6 (2015)

Section

Scientific Reports

License

Copyright (c) 2020 Geofizicheskiy Zhurnal

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors who publish with this journal agree to the following terms:

1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).