Velocity dispersion in fractured rocks in a wide frequency range

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10188800" target="_blank" >RIV/00216208:11310/13:10188800 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/13:00392585
Result on the web
<a href="http://dx.doi.org/10.1016/j.jappgeo.2013.01.010" target="_blank" >http://dx.doi.org/10.1016/j.jappgeo.2013.01.010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jappgeo.2013.01.010" target="_blank" >10.1016/j.jappgeo.2013.01.010</a>

Result language
angličtina
Original language name
Velocity dispersion in fractured rocks in a wide frequency range
Original language description
Experimental measurements of fracture-induced seismic waves velocity variations at frequencies similar to 1 kHz, similar to 40 kHz and similar to 1 MHz were performed directly in the field at the rocky outcrop and in the laboratory on specific rock samples collected from the outcrops. The peridotite-lherzolite outcrop appeared macroscopically uniform and contained three systems of visible parallel sub-vertical fractures. This rock has substantial bulk density and higher than average value of seismic wave velocity. The presence of fracture systems gives rise to its velocity anisotropy. The seismic waves passing through the rock fractures are subject to velocity dispersion and frequency dependent attenuation. Our data, obtained from field and laboratorymeasurements, were compared with theoretical model predictions. In this model we successfully used displacement discontinuity approach. For the velocity dispersion evaluation we used multi-frequency measurements. The a priori observation
Czech name
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Czech description
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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
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Project
<a href="/en/project/IAA300130906" target="_blank" >IAA300130906: Relation between elastic moduli determined by seismic methods in laboratory and in the field</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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