Open AccessTorsional Oscillations of the Anelastic Earth
Author(s) -
Zharkov V. N.,
Lubimov V. M.,
Movchan A. A.,
Movchan A. I.
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.tb06235.x
Subject(s) - earth (classical element) , earth model , transverse plane , transverse shear , geology , mechanics , shear (geology) , physics , geophysics , structural engineering , engineering , petrology , mathematical physics
Summary Tables are calculated which make it possible to determine the periods of torsional oscillations of the Earth for real models, close to the Gutenberg model. Numerical experiments on the influence of not great variations of density, shear modulus and the transverse waves velocities on the periods in the different zones of the Earth are carried out (the zones A, B, C, D), and numerical experiments on the influence of the different distributions of absorption function on the damping of torsional oscillations of the Earth are carried out. A comparison of experimental and theoretical data is made (including damping). Finally, the problems, connected with improvement of initial real models of the Earth, are considered.