scholarly journals Three-dimensional seismic attenuation tomography of Egypt

2012 ◽  
Vol 04 (08) ◽  
pp. 608-623
Author(s):  
Elsayed Fergany ◽  
Mamdouh Abass ◽  
Carlos Vargas
Keyword(s):  
Three Dimensional ◽  
Seismic Attenuation ◽  
Seismic Attenuation Tomography

scholarly journals Seismic attenuation tomography of the Tonga-Fiji region using phase pair methods

1999 ◽  
Vol 104 (B3) ◽  
pp. 4795-4809 ◽  
Author(s):  
Erich G. Roth ◽  
Douglas A. Wiens ◽  
Leroy M. Dorman ◽  
John Hildebrand ◽  
Spahr C. Webb
Keyword(s):  
Seismic Attenuation ◽  
Seismic Attenuation Tomography

Seismic attenuation spectra in rock mass characterization; a case study in open‐pit mining

Geophysics ◽  
1986 ◽  
Vol 51 (2) ◽  
pp. 302-323 ◽  
Author(s):  
R. P. Young ◽  
J. J. Hill
Keyword(s):  
Rock Mass ◽  
Three Dimensional ◽  
Seismic Attenuation ◽  
Phase Iii ◽  
Open Pit ◽  
Open Pit Mining ◽  
Rock Masses ◽  
Rock Mass Characterization ◽  
Fracture Anisotropy

The application of engineering geophysics to the characterization of rock masses is exemplified through a case study of three phases of a research project into the design of efficient blasting systems in open‐pit mining. Seismic experiments are used before and after mine blasting to monitor the efficiency of explosions in terms of rock fragmentation. Spectral analysis of seismic signals, after they have been used to interrogate rock masses, is used to compute preblast and postblast attenuation and velocity parameters. The results show that fragmentation efficiency of a mine blast and fracture anisotropy of a rock mass can be quantified in terms of three‐dimensional (3-D) attenuation spectra and polar anisotropy diagrams. These seismic data are correlated with the blast design and the energy used by the excavating dragline machine to dig to rock mass. An overview of the seismic attenuation technique and instrumentation used in the project (phases I and II) is given. A case study from phase III highlights the scope and interpretation of the relationship between excavation parameters and seismically characterized blasting efficiency.

scholarly journals High resolution regional seismic attenuation tomography in eastern Tibetan Plateau and adjacent regions

2011 ◽  
Vol 38 (16) ◽  
pp. n/a-n/a ◽  
Author(s):  
Xueyang Bao ◽  
Eric Sandvol ◽  
James Ni ◽  
Thomas Hearn ◽  
Yongshun John Chen ◽  
...  
Keyword(s):  
High Resolution ◽  
Tibetan Plateau ◽  
Seismic Attenuation ◽  
Eastern Tibetan Plateau ◽  
Seismic Attenuation Tomography

Seismic attenuation tomography in frequency domain and its application to engineering

2000 ◽  
Vol 43 (4) ◽  
pp. 431-438 ◽  
Author(s):  
Yonggui Zhao ◽  
Qin Li ◽  
Hong Guo ◽  
Hongxiao Jin ◽  
Chaofan Wang
Keyword(s):  
Frequency Domain ◽  
Seismic Attenuation ◽  
Seismic Attenuation Tomography
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