Open AccessPostglacial Uplift of Scandinavia and Physical Nature of Viscosity of the Earth's Upper Mantle
Author(s) -
Magnitsky V. A.
Publication year - 1967
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1967.tb06241.x
Subject(s) - viscosity , geology , mantle (geology) , post glacial rebound , geophysics , thermodynamics , geomorphology , glacial period , physics
Summary There are many reasons to assume isostatic readjustment taking place in the low‐velocity layer. In this case postglacial uplift of Scandinavia gives the value 10 20 ‐10 21 for viscosity in the low‐velocity layer. Assuming the low‐velocity layer being composed principally of Mg silicates it is possible to calculate respective viscosity due to diffusional processes. Thus for viscosity the value 10 19 ‐10 22 was obtained which is in reasonable agreement with respective value from the uplift data.