| Abstract: | Dilatational earth strain, associated with the radiation fields for several hundred local, regional, and teleseismic earthquakes, has been recorded over an extended bandwidth and dynamic range at four borehole sites near the San Andreas fault, CA. The general theory of linear viscoelasticity is applied to account for anelasticity of the near-surface materials and to provide a mathematical basis for interpretation of seismic radiation fields as detected simultaneously by co-located volumetric strain meters and seismometers. The general theory is applied to describe volumetric strain and displacement for general (homogeneous or inhomogeneous) P and S waves in an anelastic whole space. Solutions to the free-surface reflection problems for incident general P and S-I waves are used to evaluate the effect of the free surface on observations from co-located sensors. Corresponding expressions are derived for a Rayleigh-type surface wave on a linear viscoelastic half-space. The theory predicts a number of anelastic wave field characteristics that can be inferred from observation of volumetric strains and displacement fields as detected by co-located sensors that cannot be inferred from either sensor alone. -from Author |
| Genre: | Article |
| ProdID: | 70014313 |
| Citation Author: | Borcherdt, R. D. |
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| Citation End Page: | 228 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geophysical Journal |
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| Citation Number Of Pages: | 14 |
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| Citation Publisher: | Wiley |
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| Citation Search Results Text: | Volumetric strain in relation to particle displacements for body and surface waves in a general viscoelastic half-space; 1988; Article; Journal; Geophysical Journal; Borcherdt, R. D. |
| Citation Start Page: | 215 |
| Citation Volume: | 93 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Volumetric strain in relation to particle displacements for body and surface waves in a general viscoelastic half-space; 1988; Article; Journal; Geophysical Journal; Borcherdt, R. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1111/j.1365-246X.1988.tb01997.x |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
| Publisher: | Wiley |
