Open AccessViscosity Distribution within the Earth
Author(s) -
Takeuchi Hitoshi,
Hasegawa Yosaku
Publication year - 1965
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1965.tb06321.x
Subject(s) - geology , mantle (geology) , mantle convection , geophysics , viscosity , pleistocene , convection , structure of the earth , lithosphere , mechanics , seismology , thermodynamics , paleontology , physics , tectonics
Summary There are three sets of data ( L = wavelength, t r = relaxation time) by using which we can determine the viscosity distribution within the Earth. They are the Fennoscandian uplift, Earth oblateness and a Pleistocene lake uplift. It is shown in the present paper that these are compatible only with a thin viscous channel in the upper mantle. The result seems to preclude lower mantle convection.