Results 11 to 20 of about 3,083 (240)

Energy Generation and Attenuation of Blast-Induced Seismic Waves under In Situ Stress Conditions

Applied Sciences, 2022
During blasting in deep mining and excavation, the rock masses usually suffer from high in situ stress. The initial seismic energy generated in deep rock blasting and its attenuation with distance is first theoretically analyzed in this study.
Jianhua Yang, Jinshan Sun, Yongsheng Jia, Yingkang Yao   +3 more
doaj   +1 more source

Estimation of Seismic Wave Attenuation from 3D Seismic Data: A Case Study of OBC Data Acquired in an Offshore Oilfield

Energies, 2022
Previous studies performed in Abu Dhabi oilfields, United Arab Emirates, revealed the direct link of seismic wave attenuation to petrophysical properties of rocks.
Fateh Bouchaala, Mohammed Y. Ali, Jun Matsushima, Youcef Bouzidi, Mohammed S. Jouini, Eric M. Takougang, Aala A. Mohamed   +6 more
doaj   +1 more source

Compressional and shear wave attenuations from walkway VSP and sonic data in an offshore Abu Dhabi oilfield

Comptes Rendus. Géoscience, 2021
Seismic attenuation was estimated from compressional (P) and shear (S) waves carefully extracted from three-component vertical seismic profiling (VSP) data.
Bouchaala, Fateh, Ali, Mohammed Y., Matsushima, Jun   +2 more
doaj   +1 more source

SPATIAL VARIATIONS OF SEISMIC WAVE ATTENUATION IN THE SOUTH BAIKAL BASIN AND ADJACENT AREAS (BAIKAL RIFT)

Геодинамика и тектонофизика, 2019
Our detailed study of the crust and upper mantle of the South Baikal basin focused on seismic coda and seismic S-waves attenuation and estimated seismic quality factor (QS and QC), frequency parameter (n), attenuation coefficient (δ), total attenuation ...
A. A. Dobrynina, P. A. Predein, V. A. Sankov, Ts. A. Tubanov, D. P.-D. Sanzhieva, E. A. Gorbunova   +5 more
doaj   +1 more source

Review of progress in seismic attenuation tomography

地球与行星物理论评, 2022
Global and regional seismic attenuation models reveal anelastic heterogeneous structures in the earth, which shed new light on the temperature, melt and volatile fraction of Earth's interior, as well as the geodynamic processes and source focal ...
Andy Dai, Hao Shan, Kun Meng, Xueyang Bao   +3 more
doaj   +1 more source

Attenuation of seismic energy in the upper mantle [PDF]

Journal of Geophysical Research, 1965
The amplitude attenuation and phase dispersion for Love and Rayleigh waves in the period range 50 to 300 sec is determined from two earthquakes by digital techniques. A distribution of Q, or anelasticity, is determined for the upper mantle which satisfies the amplitude decay data for Love and Rayleigh waves and which is consistent with available body ...
Anderson, Don L., Ben-Menahem, Ari, Archambeau, C. B.   +2 more
openaire   +2 more sources

Visualization of attenuation structure and faults in incoming oceanic crust of the Nankai Trough using seismic attenuation profiling

Earth, Planets and Space, 2018
Seismic attenuation properties were tested as indicators of lateral variation in geological structures and detection of faults within poorly reflective oceanic crust, on a seismic survey line along the Nankai Trough.
Tetsuro Tsuru, Jin-Oh Park, Tetsuo No, Yukari Kido, Kazuo Nakahigashi   +4 more
doaj   +1 more source

Investigation of Preprocessing for Seismic Attenuation Profiling to Image the Earthquake Swarm Associated with the 2000 Eruption of the Miyakejima Volcano in Japan

Geosciences, 2018
By using profiling that focuses on seismic attenuation instead of reflectivity, we investigate geological structures in volcanic areas and fractured areas, where seismic reflections are difficult to observe.
Tetsuro Tsuru, Tetsuo No
doaj   +1 more source

Frequency-Domain Q-Compensated Reverse Time Migration Using a Stabilization Scheme

Remote Sensing, 2022
Seismic attenuation occurs during seismic wave propagation in a viscous medium, which will result in a poor image of subsurface structures. The attenuation compensation by directly amplifying the extrapolated wavefields may suffer from numerical ...
Xiong Ma, Hao Li, Zhixian Gui, Xiaobo Peng, Guofa Li   +4 more
doaj   +1 more source

Factors influencing seismic wave attenuation in the lithosphere in continental rift zones

Геодинамика и тектонофизика, 2017
Attenuation of seismic waves in the crust and the upper mantle has been studied in three global rift systems: the Baikal rift system (Eurasia), the North Tanzanian divergence zone (Africa) and the Basin and Range Province (North America).
А. А. Dobrynina, V. A. Sankov, J. Déverchère, V. V. Chechelnitsky   +3 more
doaj   +1 more source