Abstract
Extensive-dilatancy anisotropy is the hypothesized distribution of stress-aligned fluid-filled microcracks pervading most rocks in the Earth's crust. The geometry of the cracks and the aligning stress-field can be monitored by analysing the waveforms of shear waves propagating through the rockmass. The ability to estimate some of the parameters of the crack and stress geometry by analysing shear-wave particle displacements has widespread implications.
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Crampin, S. Geological and industrial implications of extensive-dilatancy anisotropy. Nature 328, 491–496 (1987). https://doi.org/10.1038/328491a0
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DOI: https://doi.org/10.1038/328491a0
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