Academic literature on the topic 'Seismic velocities'

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Journal articles on the topic "Seismic velocities"

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Amery, George B. "Basics of seismic velocities." Leading Edge 12, no. 11 (1993): 1087–91. http://dx.doi.org/10.1190/1.1436925.

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Sidorkina, Yu A., and T. G. Aslanov. "Determining the coordinates of the earthquake hypocenter with the simultaneous determination of seismic wave velocities." Herald of Dagestan State Technical University. Technical Sciences 49, no. 1 (2022): 79–86. http://dx.doi.org/10.21822/2073-6185-2022-49-1-79-86.

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Objective. The purpose of the study is to determine the coordinates of the earthquake hypocenter with the simultaneous determination of the seismic wave velocity.Method. The study is based on the use of figures of the fourth and second order - the Cassini oval and hyperbola, figures of the second order - ellipse and hyperbola and combined methods that allow, at given seismic wave velocities, according to three seismic sensors, to determine the coordinates of the earthquake hypocenter. In this case, the velocities are assumed to be known a priori. According to the readings of the fourth seismic
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Foti, S., and R. Lancellotta. "Soil porosity from seismic velocities." Géotechnique 54, no. 8 (2004): 551–54. http://dx.doi.org/10.1680/geot.2004.54.8.551.

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Foti, S., and R. Lancellotta. "Soil porosity from seismic velocities." Géotechnique 54, no. 8 (2004): 551–54. http://dx.doi.org/10.1680/geot.54.8.551.52010.

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Meissner, R., and B. Tanner. "Crustal viscosities and seismic velocities." Physics of the Earth and Planetary Interiors 69, no. 3-4 (1992): 252–56. http://dx.doi.org/10.1016/0031-9201(92)90143-j.

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Wang, Z., W. K. Hirsche, and G. Sedgwick. "Seismic velocities in carbonate rocks." International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 28, no. 6 (1991): A354. http://dx.doi.org/10.1016/0148-9062(91)91315-i.

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Grau, G. "Seismic velocities in complex media." Journal of Applied Geophysics 29, no. 3-4 (1993): 271–84. http://dx.doi.org/10.1016/0926-9851(93)90008-m.

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Shakhtarin, B. I., T. G. Aslanov, H. D. Magomedov, and H. Yu Tagirov. "Determination of the structure of the earth's crust by changing the velocity of seismic waves from the earthquake data." Herald of Dagestan State Technical University. Technical Sciences 47, no. 4 (2021): 101–11. http://dx.doi.org/10.21822/2073-6185-2020-47-4-101-111.

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Objective. A study of the structure of the earth's crust by determining the velocities of seismic waves from previously broken sections of the earth's crust.Methods. Two mathematical methods are proposed for determining the seismic wave velocities. The first is based on the weighted average method, and the second is based on the matrix method for solving systems of linear algebraic equations. The initial parameters used in the calculations are data from earthquakes that occurred – the coordinates of earthquake centers of origin and seismic sensors, as well as the travel times of seismic waves
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Tiwary, Dileep K., Irina O. Bayuk, Alexander A. Vikhorev, and Evgeni M. Chesnokov. "Comparison of seismic upscaling methods: From sonic to seismic." GEOPHYSICS 74, no. 2 (2009): WA3—WA14. http://dx.doi.org/10.1190/1.3054144.

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The term “upscaling” used here means a prediction of elastic-wave velocities at lower frequencies from the velocities at higher frequencies. Three different methods of upscaling are considered, including the simple averaging, Backus averaging, and pair correlation function methods. These methods are applied to upscale the elastic-wave velocities measured at sonic frequencies ([Formula: see text], logging data) available for a well penetrating layers of gas-bearing shales and carbonates. As a result, a velocity distribution over depth for [Formula: see text] and [Formula: see text] is found in
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Sidorkina, Yu A., T. G. Aslanov, and H. D. Magomedov. "Determination of seismic wave velocities on the ground using artificial neural networks." Herald of Dagestan State Technical University. Technical Sciences 49, no. 2 (2022): 67–75. http://dx.doi.org/10.21822/2073-6185-2022-49-2-67-75.

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Objective. The purpose of the study is to determine the velocities of seismic waves on the ground.Method. To determine the velocities of seismic waves in different parts of the earth's crust, using a sample obtained by mathematical modeling, an artificial neural network was trained. Using at the input of the trained neural network, the real values of the differences in the times of arrival of seismic waves on the ground, we obtain at its output the values of the velocities of seismic waves on the ground.Result. A method for determining the velocities of seismic waves on the ground using artifi
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Dissertations / Theses on the topic "Seismic velocities"

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Allen, G. F. "Interval velocities from moveout velocities over a seismic reflection survey area." Thesis, University of Leicester, 1985. http://hdl.handle.net/2381/33751.

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Moveout velocities sampled frequently along seismic horizons on a selection of seismic lines are used to derive interval velocities in an 'inversion' algorithm developed from work published by Hubral. This inversion is based on zero-offset raytrace modelling in a simplistic local ground model. The 'Hubral algorithm' is incorporated into a database which allows spatial smoothing of velocities. The spatial consistency of derived interval velocities can then be assessed by reference to mis-ties at line intersections, while interval velocities from well data can be used to check their validity. Th
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Werthmüller, Dieter. "Bayesian estimation of resistivities from seismic velocities." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/8932.

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I address the problem of finding a background model for the estimation of resistivities in the earth from controlled-source electromagnetic (CSEM) data by using seismic data and well logs as constraints. Estimation of resistivities is normally done by trial-and-error, in a process called “inversion”, by finding a model of the earth whose responses match the data to within an acceptable error; what comes out of the inversion is what is put into the model by the geophysicist: it does not come out of the data directly. The premise underlying this thesis is that an earth model can be found that sa
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Postlethwaite, Benjamin. "Seismic velocities and composition of the Canadian crust." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46687.

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It has been suggested that processes driving crustal formation in the Archean and Proterozoic were dissimilar and produced crusts with unique bulk properties and average thicknesses. The calibration of models based on evolving mantle fractionation or mantle convection style require accurate estimates of the geological and geophysical properties of crustal provinces to better constrain the details of crustal formation. Fifteen years of publicly accessible teleseismic data from all available Canadian seismic stations are binned in horizontal slowness and deconvolved into receiver functions
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Brooks, S. G. "Seismic velocities from crustal sections in Northern Scandinavia." Thesis, University of East Anglia, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372358.

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Totterdell, Ian John. "Lower-crustal velocities from long-offset seismic reflection data." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259655.

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Sharp, Andrew James. "Seismic properties of reservoir rocks from the Morecambe Bay gas fields." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298578.

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Tao, Guo. "Acoustic wave velocities, attenuation and transport properties of some sandstones." Thesis, Imperial College London, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319154.

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Seymour, Robert Henry. "The effects of stress on the seismic velocities of reservoir rocks." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417282.

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Hicks, Graham John. "Seismic velocities from reflection waveforms : the application of Newton inversion methods." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325127.

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Hall, Guy R. "Inversion of OBC seismic data for P- and S-wave velocities." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/496.

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This thesis describes an new method for deriving a shared-earth velocity model for P-P ans P-SV reflections measured with ocean bottom cable (OBC) data. The data have the potential to reveal lithological and fluid information about the rocks in the subsurface. The S waves recorded on OBCs are usually SV waves that have been converted on refraction of downgoing P-waves from the source. Conventional preocessing of OBC data separates the P-waves and SV-waves on the basis of particle motion: P-waves on the vertical component and SV-waves on the horizontal components. The P-waves are then processed
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Books on the topic "Seismic velocities"

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Cordier, Jean-Pierre. Velocities in reflection seismology. Reidel, 1985.

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M, Nur A., and Wang Zhijing Ph D, eds. Seismic and acoustic velocities in reservoir rocks. Society of Exploration Geophysicists, 1989.

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Collins, C. D. N. Seismic velocities in the crust and upper mantle of Australia. Australian Govt. Pub. Service, 1988.

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Brooks, S. G. Seismic velocities from crustal sections in northern Scandinavia. University of East Anglia, 1985.

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Gibbs, James F. Seismic velocities and geological conditions at twelve sites subjected to strong ground motion in the 1994 Northridge, California, earthquake. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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E, Fumal Thomas, and Geological Survey (U.S.), eds. Seismic velocities and geologic logs at seven strong-motion stations that recorded the 1989 Loma Prieta, California, earthquake, Part IV. U.S. Dept. of the Interior, U.S. Geological Survey, 1994.

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E, Fumal Thomas, Powers Thomas J, and Geological Survey (U.S.), eds. Seismic velocities and geologic logs from borehole measurements at seven strong-motion stations that recorded the 1989 Loma Prieta, California, earthquake. U.S. Dept. of the Interior, U.S. Geological Survey, 1994.

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E, Fumal Thomas, Powers Thomas J, and Geological Survey (U.S.), eds. Seismic velocities and geologic logs from borehole measurements at eight strong-motion stations that recorded the 1989 Loma Prieta, California, earthquake. U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

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F, Gibbs James, and Geological Survey (U.S.), eds. Seismic velocities and geologic logs from boreholes at three downhole arrays in San Francisco, California. U.S. Geological Survey, 1994.

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F, Gibbs James, and Geological Survey (U.S.), eds. Seismic velocities and geological conditions at twelve sites subjected to strong ground motion in the 1994 Northridge, California, earthquake: A revision of OFR 96-740. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Book chapters on the topic "Seismic velocities"

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Cordier, Jean-Pierre. "Basic Ideas on the Propagation of Seismic Waves." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_1.

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Cordier, Jean-Pierre. "Velocities in Seismic Reflection. Definitions. Principles of Velocity Analysis." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_6.

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Cordier, Jean-Pierre. "Calculation of Travel Times of Seismic Signals, Definition of ΔT." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_4.

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Cordier, Jean-Pierre. "General Considerations on the Recording of Seismic Waves in Prospecting for Oil." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_2.

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Cordier, Jean-Pierre. "Velocity of Seismic Waves, Relationships with the Theory of Elasticity, Variation Factors." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_3.

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Bogiatzis, Petros, George Vargemezis, Gregory Tsokas, et al. "Internal structure of the great tumulus of Apollonia as revealed by seismic tomography." In Advances in On- and Offshore Archaeological Prospection. Universitätsverlag Kiel | Kiel University Publishing, 2023. http://dx.doi.org/10.38072/978-3-928794-83-1/p15.

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We investigate the tumulus of Apollonia using the NSTomo3D seismic tomography software. Results reveal P-wave velocities of >850 m/s at the perimeter and <650 m/s in the middle. High velocities are associated with travertine rocks that were used as building materials. Low velocities correspond to unconsolidated sediments used as filling material. Several structures revealed that are of potential archaeological interest.
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Cordier, Jean-Pierre. "Influence of the “Velocity” Parameter on the Process of Migration of Seismic Sections." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_15.

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Upadhyay, S. K. "Reflection Time Analysis and Velocities for Transversely Isotropic (T. I.) Media." In Seismic Reflection Processing. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09843-1_8.

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Cordier, Jean-Pierre. "Measurement of Velocities in Boreholes. Sonic Logs. Seismic Surveys of Boreholes. Pseudo Velocity Logs. Transformation of Resistivity Logs to Velocity Logs." In Velocities in Reflection Seismology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-3641-1_5.

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Górski, Marek. "Seismic Wave Velocities in the Hans Glacier, Spitsbergen." In GeoPlanet: Earth and Planetary Sciences. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31851-1_4.

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Conference papers on the topic "Seismic velocities"

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Rüger, A., and D. Hale. "Why Mesh Seismic Velocities?" In 67th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2005. http://dx.doi.org/10.3997/2214-4609-pdb.1.p261.

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Carcione, J., and G. Seriani. "Seismic Velocities in Permafrost." In 59th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 1997. http://dx.doi.org/10.3997/2214-4609-pdb.131.gen1997_p069.

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Diekmann, L., B. Schwarz, A. Bauer, and D. Gajewski. "Wavefront Tomography for Passive Seismic Data." In Second EAGE/PESGB Workshop on Velocities. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201900041.

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Eisenberg-Klein, G. L., J. Pruessmann, and E. Schuenemann. "Enhanced Velocity Model Building For Low Quality Seismic Data." In First EAGE/PESGB Workshop on Velocities. EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201800014.

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Gineste, M., J. Eidsvik, and Y. Zheng. "Seismic Waveform Inversion Using an Iterative Ensemble Kalman Smoother." In Second EAGE/PESGB Workshop on Velocities. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201900038.

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Brueckl, E., and M. Parotidis. "Seismic Velocities of Large Rockslide Masses." In 62nd EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2000. http://dx.doi.org/10.3997/2214-4609-pdb.28.p169.

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Werthmüller, Dieter, Anton M. Ziolkowski, and David A. Wright. "Background resistivity model from seismic velocities." In SEG Technical Program Expanded Abstracts 2012. Society of Exploration Geophysicists, 2012. http://dx.doi.org/10.1190/segam2012-0696.1.

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Puryear, C., J. Rasmussen, L. Sánchez, R. Walker, R. Reddig, and L. Lorenz. "Background Resistivity Prediction from Seismic Velocities." In 78th EAGE Conference and Exhibition 2016. EAGE Publications BV, 2016. http://dx.doi.org/10.3997/2214-4609.201600944.

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C. Docherty, P. "Method for Calibrating Seismic Imaging Velocities." In 71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609.201400088.

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Øverås, R., V. Kalashnikova, S. Guidard, and I. Meisingset. "Construction Technique Of High Resolution Velocity Field - New Attribute For Seismic Interpretation." In First EAGE/PESGB Workshop on Velocities. EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201800001.

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Reports on the topic "Seismic velocities"

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DIXON PAUL. PEAK GROUND VELOCITIES FOR SEISMIC EVENTS AT YUCCA MOUNTAIN, NEVADA. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/882870.

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K. Coppersmith and R. Quittmeyer. Peak Ground Velocities for Seismic Events at Yucca Mountain, Nevada. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/838326.

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Berryman, J. G. Effects of pressure and saturation on seismic velocities and impedance measurements. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/15006174.

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J. King, K. Coppersmith, and R. Quittmeyer. Bounding Peak Ground Velocities for Seismic Events at Yucca Mountain, Nevada. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/837703.

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Dittus, Susan E., and J. R. Pelton. Seismic P-Velocities in Outcrops of the Troodos Ophiolite Complex, Cyprus. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada348523.

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Sandidge-Bodoh, Victoria L. Investigating the Effects Fracture Systems Have on Seismic Wave Velocities at the Lajitas, Texas Seismic Station. Defense Technical Information Center, 1989. http://dx.doi.org/10.21236/ada215943.

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PETERSON SW. MEASUREMENT OF COMPRESSIONAL-WAVE SEISMIC VELOCITIES IN 29 WELLS AT THE HANFORD SITE. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/1000063.

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Smith, G. C., and F. J. Vine. Seismic velocities in basalts from CCSP drill holes CY-2 and CY-2a at Agrokipia mines, Cyprus. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/122602.

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Bainer, R. W., J. W. Rector, B. Braile, P. Milligan, and J. Selbig. Vertical seismic profiling at Borehole B-1015, Lawrence Livermore National Laboratory: Motivation, data acquisition, data analysis, and formation velocities. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/514894.

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Keen, C. E. Conversion of seismic-reflection time to depth for the Labrador margin, Davis Strait, and Baffin Bay, offshore northern Canada and Greenland, using sonic logs, checkshot surveys, and wide-angle seismic velocities. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2019. http://dx.doi.org/10.4095/315016.

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