Results 21 to 30 of about 523,525 (211)

Seismic Anisotropy—Introduction [PDF]

Geophysics, 2011
This special section is dedicated to seismic anisotropy, which is playing an increasingly more important role in our understanding and modelling of the subsurface. Most papers published in this section were presented at the 14th International Workshop on Seismic Anisotropy (IWSA), which was held on 12–16 April 2010 in Hillarys, Perth, Western Australia.
Bona, Andrej, Gurevich, Boris, Ball, G., Pervukhina, M.   +3 more
openaire   +2 more sources

The anisotropy of hexagonal close-packed iron under inner core conditions: the effect of light elements

Earth and Planetary Physics, 2022
In recent decades, global seismic observations have identified increasingly complex anisotropy of the Earth’s inner core. Numerous seismic studies have confirmed hemispherical variations in the inner core’s anisotropy.
Wei Zhang, Mei Tang, ZhenWei Niu
doaj   +1 more source

The characterisation of rock masses from laboratory and field studies of the velocity and attenuation of seismic waves [PDF]

, 1996
This thesis addresses the concept of non-destructive rock mass characterisation using in-situ measurements of the velocity and attenuation of seismic waves. The thesis is divided in to two sections, the first of which considers a comprehensive laboratory
Pearce, Dominic Robert
core   +6 more sources

Automated shear-wave splitting analysis for single- and multi- layer anisotropic media

Seismica, 2023
Shear-wave velocity anisotropy is present throughout the earth. The strength and orientation of anisotropy can be observed by shear-wave splitting (birefringence) accumulated between earthquake sources and receivers. Seismic deployments are getting ever
Thomas Samuel Hudson, Joseph Asplet, Andrew M Walker   +2 more
doaj   +1 more source

Correlation between crustal anisotropy and seismogenic stress field beneath Shillong–Mikir Plateau and its vicinity in North East India

Geomatics, Natural Hazards & Risk, 2021
A systematic study towards understanding the correlation between polarization direction of crustal anisotropy with seismogenic stress field at different locations of the Shillong-Mikir Plateau and its vicinity in North East India is attempted.
Santanu Baruah, Antara Sharma, Chandan Dey, Sowrav Saikia, Goutam Kashyap Boruah, Ayodeji Adekunle Eluyemi, Prachurjya Borthakur, Nabajyoti Molia, Anwesha Dutta Hazarika, Saitluanga Sailo, Sebastiano D’Amico, Manoj K. Phukan, Saurabh Baruah, J. R. Kayal   +13 more
doaj   +1 more source

Estimation of Litho-Fluid Facies Distribution from Zero-Offset Acoustic and Shear Impedances

Applied Sciences, 2022
Seismic data are considered crucial sources of data that help identify the litho-fluid facies distributions in reservoir rocks. However, different facies mostly have similar responses to seismic attributes.
Mohammed Fathy Gouda, Abdul Halim Abdul Latiff, Seyed Yasser Moussavi Alashloo   +2 more
doaj   +1 more source

Seismic anisotropy in the Sumatra subduction zone [PDF]

Journal of Geophysical Research: Solid Earth, 2013
An important tool for understanding deformation occurring within a subduction zone is the measurement of seismic anisotropy through observations of shear wave splitting (SWS). In Sumatra, two temporary seismic networks were deployed between December 2007 and February 2009, covering the fore arc between the fore‐arc islands to the back arc.
Collings, R., Rietbrock, A., Tilmann, F., Lange, D., Nippres, S., Natawidjaja, D.   +5 more
openaire   +3 more sources

Confronting Solid‐State Shear Bias: Magmatic Fabric Contribution to Crustal Seismic Anisotropy

Geophysical Research Letters, 2023
Seismic anisotropy is controlled by aligned rock‐forming minerals, which most studies attribute to solid‐state shear with less consideration for magmatic fabric in plutonic rocks (rigid‐body rotation of crystals in the presence of melt).
Michael G. Frothingham, Kevin H. Mahan, Vera Schulte‐Pelkum, Philippe Goncalves, Michele Zucali   +4 more
doaj   +1 more source

Impact of Shale Anisotropy on Seismic Wavefield

Energies, 2019
During unconventional resources exploration, ignoring shale anisotropy may lead to wrong seismic interpretations, thus affecting the accuracy and credibility of sweet spots prediction and reservoir characterization.
Han Li, Xiwu Liu, Xu Chang, Ruyue Wu, Jiong Liu   +4 more
doaj   +1 more source

Firn seismic anisotropy in the Northeast Greenland Ice Stream from ambient-noise surface waves [PDF]

The Cryosphere
We analyse ambient-noise seismic data from 23 three-component seismic nodes to study firn velocity structure and seismic anisotropy near the EastGRIP camp along the Northeast Greenland Ice Stream (NEGIS).
E. Pearce, D. Zigone, C. Hofstede, A. Fichtner, J. Rimpot, S. O. Rasmussen, J. Freitag, O. Eisen, O. Eisen, O. Eisen   +9 more
doaj   +1 more source