Quasi-static fault growth and shear fracture energy in granite
Nature
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Abstract
The failure process in a brittle granite sample can be stabilized by controlling axial stress to maintain a constant rate of acoustic emission. As a result, the post-failure stress curve can be followed quasistatically, extending to hours the fault growth process which normally would occur violently in a fraction of a second. Using a procedure originally developed to locate earthquakes, acoustic emission arrival-time data are inverted to obtain three-dimensional locations of microseisms. These locations provide a detailed view of fracture nucleation and growth.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Quasi-static fault growth and shear fracture energy in granite |
| Series title | Nature |
| DOI | 10.1038/350039a0 |
| Volume | 350 |
| Issue | 6313 |
| Year Published | 1991 |
| Language | English |
| Publisher | Springer Nature |
| Description | 4 p. |
| First page | 39 |
| Last page | 42 |