Determination of elastic anisotropy of rocks from P- and S-wave velocities: numerical modelling and lab measurements

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10291876" target="_blank" >RIV/00216208:11310/14:10291876 - isvavai.cz</a>
Alternative codes found
RIV/67985530:_____/14:00433696 RIV/67985831:_____/14:00433696
Result on the web
<a href="http://dx.doi.org/10.1093/gji/ggu332" target="_blank" >http://dx.doi.org/10.1093/gji/ggu332</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/gji/ggu332" target="_blank" >10.1093/gji/ggu332</a>

Result language
angličtina
Original language name
Determination of elastic anisotropy of rocks from P- and S-wave velocities: numerical modelling and lab measurements
Original language description
The most common type of waves used for probing anisotropy of rocks in laboratory is the direct P wave. Information potential of the measured P-wave velocity, however, is limited. In rocks displaying weak triclinic anisotropy, the P-wave velocity dependsjust on 15 linear combinations of 21 elastic parameters, called the weak-anisotropy parameters. In strong triclinic anisotropy, the P-wave velocity depends on the whole set of 21 elastic parameters, but inversion for six of them is ill-conditioned and these parameters are retrieved with a low accuracy. Therefore, in order to retrieve the complete elastic tensor accurately, velocities of S waves must also be measured and inverted. For this purpose, we developed a lab facility which allows the P-and S-wave ultrasonic sounding of spherical rock samples in 132 directions distributed regularly over the sphere. The velocities are measured using a pair of P-wave sensors with the transmitter and receiver polarized along the radial direction and
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DC - Seismology, volcanology and Earth structure
OECD FORD branch
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)