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The elastic energy and character of quakes in solid stars and planetsThe quadrupolar mechanical energy of a rotating axially symmetric solid planet (with or without a liquid interior) is calculated using methods previously developed for neutron stars in which an elastic reference tensor is introduced to describe the build-up of elastic energy in the star. The basic parameters of the theory (the gravitational energy A and elastic energy B) depend upon the internal structure of the planet and may be calculated from specific planetary models. Explicit expressions are obtained for the Love numbers, and for the planetary wobble frequency. The theory provides a simple relationship between changes in shape or axis of figure of the planet and elastic energy release. The theory is extended to describe the Earth by taking into account isostasy, triaxiality and the observed lithospheric configuration.
Document ID
19740003527
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pines, D.
(Illinois Univ. Urbana, IL, United States)
Shaham, J.
(Illinois Univ. Urbana, IL, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Publication Information
Publication: Univ. Space Res. Assoc. High Pressure Phys. and Planetary Interiors
Subject Category
Space Sciences
Accession Number
74N11640
Funding Number(s)
CONTRACT_GRANT: NSF GP-25855
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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