Abstract
One-dimensional seismic reference models are known to be a nonunique solution to global seismic data, hampering an interpretation in terms of physical structure. Here we test the compatibility of the simplest hypothesis of a mantle convecting as a whole, with a constant pyrolitic composition with phase transitions, directly against the kind of seismic data that went into global seismic reference models, focusing on upper mantle structure down to 800 km depth. By randomly varying the elastic and anelastic parameters of the main mantle minerals within their uncertainty bounds, we generate a set of 100,000 adiabatic, pyrolitic models. A small number of these models (
Original language | English |
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Article number | 01306 |
Number of pages | 17 |
Journal | Journal of Geophysical Research: Solid Earth |
Volume | 110 |
Issue number | B1 |
DOIs | |
Publication status | Published - 20 Jan 2005 |
Keywords
- WAVE ATTENUATION
- FREQUENCY-DEPENDENCE
- TRAVEL-TIMES
- EARTH MODELS
- DEEP MANTLE
- BODY WAVES
- DISCONTINUITIES
- TOMOGRAPHY
- VELOCITIES
- ANISOTROPY