P-wave reflection-moveout approximation for horizontally layered media of tilted weak-to-moderate orthorhombic symmetry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F20%3A00524541" target="_blank" >RIV/67985530:_____/20:00524541 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/20:10421795
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0926985120300343" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0926985120300343</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jappgeo.2020.104057" target="_blank" >10.1016/j.jappgeo.2020.104057</a>

Result language
angličtina
Original language name
P-wave reflection-moveout approximation for horizontally layered media of tilted weak-to-moderate orthorhombic symmetry
Original language description
An approximate nonhyperbolic P-wave moveout formula applicable to horizontally layered media of weak-tomoderatenorthorhombic or higher-symmetry anisotropy of arbitrary orientation is presented and tested.nWeak-anisotropy approximation is used for the derivation of the formula, in which the square of the reflectionntraveltime is expanded in terms of weak-anisotropy (WA) parameters specifying the anisotropy of the layers.nDue to the use of the weak-anisotropy approximation, the proposed formula is applicable to any offset. Its accuracyndecreases with increasing strength of anisotropy. The relation between traveltimes and WA parameters innthe formula is transparent and relatively simple. For any offset along an arbitrarily chosen single surface profile,nthe formula depends in each layer on its thickness, on the auxiliary reference P-wave velocity, on, atmost, sixWAnparameters describing P-wave orthorhombic or higher-symmetry anisotropy, and on three Euler angles specifyingnthe orientation of symmetry elements in the layer. Performed tests indicate that the maximum relativentraveltime error does not exceed 2.5% for P-wave anisotropy about 25%. Often, the errors are considerably lower.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10507 - Volcanology

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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