Publications

Ilya Tsvankin

University Distinguished Professor
Department of Geophysics
Co-Leader, Center for Wave Phenomena

Papers in Russian and abstracts are not included.

For PDF files not linked from this page, see CWP reports.

Books

Tsvankin, I., 2012, Seismic signatures and analysis of reflection data in anisotropic media: Society of Exploration Geophysicists, third edition (previous editions published by Elsevier in 2001 and 2005). SEG Bookmart

Tsvankin, I., and V. Grechka, 2011, Seismology of azimuthally anisotropic media and seismic fracture characterization: Society of Exploration GeophysicistsSEG Bookmart

Tsvankin, I., 1995, Seismic wavefields in layered isotropic media: Samizdat Press, Colorado School of Mines. Samizdat

Tsvankin, I., 1995, Seismic wavefields in layered isotropic media: Samizdat Press (link to Samizdat), Colorado School of Mines. (link to the book)

Papers

Sethi, H., I. Tsvankin, and J. Shragge, 2024, Methodology of elastic full-waveform inversion of multicomponent ocean-bottom data for anisotropic media: Geophysical Prospecting, 72, no. 2, 604-616. PDF

Liu, Y., S. Feng, I. Tsvankin, D. Alumbaugh, and Y. Lin, 2023, Joint physics-based and data-driven time-lapse seismic inversion: Mitigating data scarcity: Geophysics, 88, no. 1, K1-K12. PDF

Zhang, Y., S. Singh, D. Thanoon, P. Devarakota, L. Jin, and I. Tsvankin, 2023, Physics-guided unsupervised deep-learning seismic inversion with uncertainty quantification: Journal of Seismic Exploration, 32, 257-270. PDF

Hao, Q., and I. Tsvankin, 2023, Thomsen-type parameters and attenuation coefficients for constant-Q transverse isotropy: Geophysics, 88, no. 5, C123-C134. PDF

Sethi, H., F. Hoxha, J. Shragge, and I. Tsvankin, 2023, Modeling 3-D anisotropic elastodynamics using mimetic finite-differences and fully staggered grids: Computational Geosciences, 27, 793-804. PDF

Liu, Y., and I. Tsvankin, 2022, Source-independent time-lapse full-waveform inversion for anisotropic media: Geophysics, 87, no. 1, R111-R122. PDF

Sethi, H., J. Shragge, and I. Tsvankin, 2022, Tensorial elastodynamics for coupled acoustic/elastic anisotropic media: Incorporating bathymetry: Geophysical Journal International, 228, no. 2, 999-1014. PDF

Singh, S., I. Tsvankin, and E. Zabihi Naeini, 2022, Facies prediction with Bayesian inference: Application of supervised and semisupervised deep learning: Interpretation, 10, no. 2, T279-T290. PDF

Singh, S., and I. Tsvankin, 2022, Sensitivity analysis of elastic full-waveform inversion for orthorhombic media: Journal of Seismic Exploration, 31, 105-130. PDF

Sethi, H., J. Shragge, and I. Tsvankin, 2021, Mimetic finite-difference coupled-domain solver for anisotropic media: Geophysics, 86, no. 1, T45-T59. PDF

Liu, Y., and I. Tsvankin, 2021, Methodology of time-lapse elastic full-waveform inversion for VTI media: Journal of Seismic Exploration, 30, 257-270. PDF

Singh, S., I. Tsvankin, and E. Zabihi Naeini, 2021, Elastic FWI for orthorhombic media with lithologic constraints applied via machine learning: Geophysics, 86, no. 4, R589-R602. PDF

Singh, S., I. Tsvankin, and E. Zabihi Naeini, 2021, Facies-based full-waveform inversion for anisotropic media: a North Sea case study: Geophysical Prospecting, 69, 1650-1663. PDF

Arora, Y., and I. Tsvankin, 2020, Anisotropic traveltime tomography of diffraction arrivals based on eikonal equation: Journal of Seismic Exploration, 29, 455-475. PDF

Singh, S., I. Tsvankin, and E. Zabihi Naeini, 2020, Full-waveform inversion with borehole constraints for elastic VTI media: Geophysics, 85, no. 6, R553-R563. PDF

Li, V., A. Guitton, I. Tsvankin, and T. Alkhalifah, 2019, Image-domain wavefield tomography for VTI media: Geophysics, 84, no. 2, C119-C128. PDF

Liu, Q., and I. Tsvankin, 2019, Stacking-velocity tomography for tilted orthorhombic media: Geophysics, 84, no. 3, C171-C180. PDF

Bai, T., T. Zhu, and I. Tsvankin, 2019, Attenuation compensation for time-reversal imaging in VTI media: Geophysics, 84, no. 4, C205-C216. PDF

Jarillo Michel, O., and I. Tsvankin, 2019, 3D waveform inversion of downhole microseismic data for transversely isotropic media: Geophysical Prospecting, 67, 2332-2342. PDF

Bai, T., and I. Tsvankin, 2019, Source-independent waveform inversion for attenuation estimation in anisotropic media: Geophysical Prospecting, 67, 2343-2357. PDF

Li, V., I. Tsvankin, A. Guitton, and H. Wang, 2019, Image-domain wavefield tomography for tilted transversely isotropic media: Geophysical Prospecting, 67, 2358-2367. PDF

Wang, H., and I. Tsvankin, 2018, Methodology of waveform inversion for acoustic orthorhombic media: Journal of Seismic Exploration, 27, 201-226. PDF

Arora, Y., and I. Tsvankin, 2018, Analysis of diffractions in dip-angle gathers for transversely isotropic media: Journal of Seismic Exploration, 27, 515-530. PDF

Singh, S., I. Tsvankin, and E. Zabihi Naeini, 2018, Bayesian framework for elastic full-waveform inversion with facies information: The Leading Edge, 37, no. 12, 924-931. PDF

Li, V., H. Wang, I. Tsvankin, E. Diaz, and T. Alkhalifah, 2017, Inversion gradients for acoustic VTI wavefield tomography: Geophysics, 82, no. 4, WA55-WA65. PDF

Bai, T., I. Tsvankin, and X. Wu, 2017, Waveform inversion for attenuation estimation in anisotropic media: Geophysics, 82, no. 4, WA83-WA93. PDF

Jarillo Michel, O., and I. Tsvankin, 2017, Waveform inversion for microseismic velocity analysis and event location in VTI media: Geophysics, 82, no. 4, WA95-WA103. PDF

Kamath, N., I. Tsvankin, and E. Diaz, 2017, Elastic full-waveform inversion for VTI media: A synthetic parameterization study: Geophysics, 82, no. 5, C163-C174. PDF

Kamath, N., I. Tsvankin, and E. Zabihi Naeini, 2017, Facies-constrained FWI: Toward application to reservoir characterization: The Leading Edge, 36, no. 11, 924-930. PDF

Smith, S., and I. Tsvankin, 2016, Inversion of multicomponent seismic time shifts for reservoir pressure and length: A feasibility study: Geophysical Prospecting, 64, 83-101. PDF

Kamath, N., and I. Tsvankin, 2016, Elastic full-waveform inversion for VTI media: Methodology and sensitivity analysis: Geophysics, 81, no. 2, C53-C68. PDF

Bai, T., and I. Tsvankin, 2016, Time-domain finite-difference modeling for attenuative anisotropic media: Geophysics, 81, no. 2, C69-C77. PDF

Li, V., I. Tsvankin, and T. Alkhalifah, 2016, Analysis of RTM extended images for VTI media: Geophysics, 81, no. 3, S139-S150. PDF

Arora, Y., and I. Tsvankin, 2016, Separation of diffracted waves in transversely isotropic media: Studia Geophysica et Geodaetica, 60, no. 3, 487-499. PDF

Zabihi Naeini, E., T. Alkhalifah, I. Tsvankin, N. Kamath, and J. Cheng, 2016, Main components of full-waveform inversion for reservoir characterization: First Break, 34, 37-48. PDF

Tamimi, N., I. Tsvankin, and T. L. Davis, 2015, Estimation of VTI parameters using slowness-polarization inversion of P- and SV-waves: Journal of Seismic Exploration, 24, 455-474. PDF

Jarillo Michel, O., and I. Tsvankin, 2015, Estimation of microseismic source parameters by 2D anisotropic waveform inversion: Journal of Seismic Exploration, 24, 379-400. PDF

Jarillo Michel, O., and I. Tsvankin, 2014, Gradient calculation for waveform inversion of microseismic data in VTI media: Journal of Seismic Exploration, 23, 201-217. PDF

Shekar, B., and I. Tsvankin, 2014, Point-source radiation in attenuative anisotropic media: Geophysics, 79, no. 5, WB25-WB34. PDF

Shekar, B., and I. Tsvankin, 2014, Kirchhoff modeling for attenuative anisotropic media using Gaussian beams: Geophysics, 79, no. 5, WB51-WB61. PDF

Wang, X., and I. Tsvankin, 2013, Multiparameter TTI tomography of P-wave reflection and VSP data: Geophysics, 78, no. 5, WC51-WC63. PDF

Kamath, N., and I. Tsvankin, 2013, Full-waveform inversion of multicomponent data for horizontally layered VTI media: Geophysics, 78, no. 5, WC113-WC121. PDF

Cai, P., and I. Tsvankin, 2013, Joint migration velocity analysis of PP- and PS-waves for VTI media: Geophysics, 78, no. 5, WC123-WC135. PDF

Smith, S., and I. Tsvankin, 2013, Sensitivity of compaction-induced multicomponent seismic time shifts to variations in reservoir properties: Geophysics, 78, no. 5, T151-T163. PDF

Wang, X., and I. Tsvankin, 2013, Ray-based gridded tomography for tilted transversely isotropic media: Geophysics, 78, no. 1, C11-C23. PDF

Takanashi, M., and I. Tsvankin, 2012, Moveout analysis of wide-azimuth data in the presence of lateral velocity variation: Geophysics, 77, no. 3, U49-U62. PDF

Shekar, B., and I. Tsvankin, 2012, Anisotropic attenuation analysis of crosshole data generated during hydraulic fracturing: The Leading Edge, 31, no. 5, 588-593. PDF

Behura, J., I. Tsvankin, E. Jenner, and A. Calvert, 2012, Estimation of interval velocity and attenuation anisotropy from reflection data at Coronation Field: The Leading Edge, 31, no. 5, 580-587. PDF

Smith, S., and I. Tsvankin, 2012, Modeling and analysis of compaction-induced traveltime shifts for multicomponent seismic data: Geophysics, 77, no. 6, T221-T237. PDF

Takanashi, M., and I. Tsvankin, 2012, Migration velocity analysis for TI media in the presence of quadratic lateral velocity variation: Geophysics, 77, no. 6, U87-U96. PDF

Fuck, R. F., I. Tsvankin, and A. Bakulin, 2011, Influence of background heterogeneity on traveltime shifts for compacting reservoirs: Geophysical Prospecting, 59, 78-89. PDF

Takanashi, M., and I. Tsvankin, 2011, Correction for the influence of velocity lenses on nonhyperbolic moveout inversion for VTI media: Geophysics, 76, no. 3, WA13-WA21. PDF

Wang, X., and I. Tsvankin, 2011, Moveout inversion of wide-azimuth P-wave data for tilted TI media: Geophysics, 76, no. 3, WA23-WA29. PDF

Shekar, B., and I. Tsvankin, 2011, Estimation of shear-wave interval attenuation from mode-converted data: Geophysics, 76, no. 6, D11-D19. PDF

Tsvankin, I., J. Gaiser, V. Grechka, M. van der Baan, and L. Thomsen, 2010, Seismic anisotropy in exploration and reservoir characterization: An overview: Geophysics, 75, no. 5, 75A15-75A29. PDF

Wang, X., and I. Tsvankin, 2010, Stacking-velocity inversion with borehole constraints for tilted TI media: Geophysics, 75, no. 5, D69-D77. PDF

Sollner, W., I. Tsvankin, and E. F. F. Silva, 2010, Multi-azimuth prestack time migration for anisotropic, weakly heterogeneous media: Journal of Seismic Exploration, 19, 187-206. PDF

Behera, L., and I. Tsvankin, 2009, Migration velocity analysis for tilted transversely isotropic media: Geophysical Prospecting, 57, 13-26. PDF

Fuck, R. F., A. Bakulin, and I. Tsvankin, 2009, Theory of traveltime shifts around compacting reservoirs: 3D solutions for heterogeneous anisotropic media: Geophysics, 74, no. 1, D25-D36. PDF

Ayzenberg, M., I. Tsvankin, A. Aizenberg, and B. Ursin, 2009, Effective reflection coefficients for curved interfaces in transversely isotropic media: Geophysics, 74, no. 5, WB33-WB53. PDF

Behura, J., and I. Tsvankin, 2009, Role of the inhomogeneity angle in anisotropic attenuation analysis: Geophysics, 74, no. 5, WB177-WB191. PDF

Behura, J., and I. Tsvankin, 2009, Reflection coefficients in attenuative anisotropic media: Geophysics, 74, no. 5, WB193-WB202. PDF

Behura, J., and I. Tsvankin, 2009, Estimation of interval anisotropic attenuation from reflection data: Geophysics, 74, no. 6, A69-A74. PDF

Fuck, R. F., and I. Tsvankin, 2009, Analysis of the symmetry of a stressed medium using nonlinear elasticity: Geophysics, 74, no. 5, WB79-WB87. PDF

Wang, X., and I. Tsvankin, 2009, Estimation of interval anisotropy parameters using velocity-independent layer stripping: Geophysics, 74, no. 5, WB117-WB127. PDF

Tsvankin, I., 2008, Properties of evanescent waves in anisotropic media: Journal of Seismic Exploration, 17, 237-251. PDF

Xu, X., and I. Tsvankin, 2008, Moveout-based geometrical-spreading correction for PS-waves in layered anisotropic media: Journal of Geophysics and Engineering, 5, 195-202. PDF

Yan, J., and I. Tsvankin, 2008, AVO-sensitive semblance analysis for wide-azimuth data: Geophysics, 73, no. 2, U1-U11. PDF

Zhu, Y., I. Tsvankin, P. Dewangan, and K. van Wijk, 2007, Physical modeling and analysis of P-wave attenuation anisotropy in transversely isotropic media: Geophysics, 72, no. 1, D1-D7. PDF

Zhu, Y., and I. Tsvankin, 2007, Plane-wave attenuation anisotropy in orthorhombic media: Geophysics, 72, no. 1, D9-D19. PDF

Landro, M., and I. Tsvankin, 2007, Seismic critical-angle reflectometry: A method to characterize azimuthal anisotropy?: Geophysics, 72, no. 3, D41-D50. PDF

Zhu, Y., I. Tsvankin, and I. Vasconcelos, 2007, Effective attenuation anisotropy of thin-layered media: Geophysics, 72, no. 5, D93-D106. PDF

Xu, X., and I. Tsvankin, 2007, A case study of azimuthal AVO analysis with anisotropic spreading correction: The Leading Edge, 26, no. 12, 1552-1561. PDF

Tsvankin, I., and V. Grechka, 2006, Developments in seismic anisotropy: Treating realistic subsurface models in imaging and fracture detection: CSEG Recorder, 31 (special edition), 43-46. PDF

Tsvankin, I., and V. Grechka, 2006, Interview to the Canadian Society of Exploration Geophysicists: CSEG Recorder, 31 (No. 4), 14-26. Reprinted in The Leading Edge, 25 (No. 10), 1244-1251. PDF

Zhu, Y., and I. Tsvankin, 2006, Plane-wave propagation in attenuative transversely isotropic media: Geophysics, 71, no. 2, T17-T30. PDF

Dewangan, P., and I. Tsvankin, 2006, Modeling and inversion of PS-wave moveout asymmetry for tilted TI media: Part 1 – Horizontal TTI layer: Geophysics, 71, no. 4, D107-D122. PDF

Dewangan, P., and I. Tsvankin, 2006, Modeling and inversion of PS-wave moveout asymmetry for tilted TI media: Part 2 – Dipping TTI layer: Geophysics, 71, no. 4, D123-D134. PDF

Dewangan, P., I. Tsvankin, M. Batzle, K. van Wijk, and M. Haney, 2006, PS-wave moveout inversion for tilted TI media: A physical-modeling study: Geophysics, 71, no. 4, D135-D143. PDF

Dewangan, P., and I. Tsvankin, 2006, Velocity-independent layer stripping of PP and PS reflection traveltimes: Geophysics, 71, no. 4, U59-U65. PDF

Vasconcelos, I., and I. Tsvankin, 2006, Nonhyperbolic moveout inversion of wide-azimuth P-wave data for orthorhombic media: Geophysical Prospecting, 54, 535-552. PDF

Sarkar, D., and I. Tsvankin, 2006, Anisotropic migration velocity analysis: Application to a data set from West Africa: Geophysical Prospecting, 54, 575-587. PDF

Fuck, R. F., and I. Tsvankin, 2006, Seismic signatures of two orthogonal sets of vertical microcorrugated fractures: Journal of Seismic Exploration, 15, 183-208. PDF

Behura, J., and I. Tsvankin, 2006, Small-angle AVO response of PS-waves in tilted transversely isotropic media: Geophysics, 71, no. 5, C69-C79. PDF

Xu, X., and I. Tsvankin, 2006, Anisotropic geometrical-spreading correction for wide-azimuth P-wave reflections: Geophysics, 71, no. 5, D161-D170. PDF

Xu, X., and I. Tsvankin, 2006, Azimuthal AVO analysis with anisotropic spreading correction: A synthetic study: The Leading Edge, 25, no. 11, 1336-1342. PDF

Grechka, V., Pech, A., and I. Tsvankin, 2005, Parameter estimation in orthorhombic media using multicomponent wide-azimuth reflection data: Geophysics, 70, no. 2, D1-D8. PDF

Xu, X., I. Tsvankin, and A. Pech, 2005, Geometrical spreading of P-waves in horizontally layered, azimuthally anisotropic media: Geophysics, 70, no. 5, D43-D54. PDF

Al-Zayer, R., and I. Tsvankin, 2005, Image gathers of SV-waves in homogeneous and factorized VTI media: Geophysics, 70, no. 5, D55-D64. PDF

Grechka, V., and I. Tsvankin, 2004, Characterization of dipping fractures in a transversely isotropic background: Geophysical Prospecting, 52, 1-10. PDF

Pech, A., and I. Tsvankin, 2004, Quartic moveout coefficient for a dipping azimuthally anisotropic layer: Geophysics, 69, 699-707. PDF

Sarkar, D., and I. Tsvankin, 2004, Migration velocity analysis in factorized VTI media: Geophysics, 69, 708-718. PDF

Grechka, V., A. Bakulin, and I. Tsvankin, 2003, Seismic characterization of vertical fractures described as general linear-slip interfaces: Geophysical Prospecting, 51, 117-130. PDF

Grechka, V., and I. Tsvankin, 2003, Feasibility of seismic characterization of multiple fracture sets: Geophysics, 68, 1399-1407. PDF

Pech, A., I. Tsvankin, and V. Grechka, 2003, Quartic moveout coefficient: 3D description and application to tilted TI media: Geophysics, 68, 1600-1610. PDF

Sarkar, D., and I. Tsvankin, 2003, Analysis of image gathers in factorized VTI media: Geophysics, 68, 2016-2025. PDF

Grechka, V., and I. Tsvankin, 2002, NMO-velocity surfaces and Dix-type formulas in anisotropic heterogeneous media: Geophysics, 67, 939-951. PDF

Grechka, V., and I. Tsvankin, 2002, PP+PS=SS: Geophysics, 67, 1961-1971. PDF

Grechka, V., and I. Tsvankin, 2002, Processing-induced anisotropy: Geophysics, 67, 1920-1928. PDF

Grechka, V., and I. Tsvankin, 2002, The joint nonhyperbolic moveout inversion of PP and PS data in VTI media: Geophysics, 67, 1929-1932. PDF

Tsvankin, I., and V. Grechka, 2002, 3D description and inversion of reflection moveout of PS-waves in anisotropic media: Geophysical Prospecting, 50, 301-316. PDF

Grechka, V., A. Pech, and I. Tsvankin, 2002, P-wave stacking-velocity tomography for VTI media: Geophysical Prospecting, 50, 151-168. PDF

Grechka, V., A. Pech, and I. Tsvankin, 2002, Multicomponent stacking-velocity tomography for transversely isotropic media: Geophysics, 67, 1564-1574. PDF

Grechka, V., I. Tsvankin, A. Bakulin, J. O. Hansen, and C. Signer, 2002, Joint inversion of PP and PS reflection data for VTI media: A North Sea case study: Geophysics, 67, 1382-1395. PDF

Grechka, V., I. Tsvankin, A. Bakulin, C. Signer, and J. O. Hansen, 2002, Anisotropic inversion and imaging of PP and PS reflection data in the North Sea: The Leading Edge, 21, No. 1, 90-97. PDF

Bakulin, A., V. Grechka, and I. Tsvankin, 2002, Seismic inversion for the parameters of two orthogonal fracture sets in a VTI background medium: Geophysics, 67, 292-299. PDF

DeVault, B., T. L. Davis, I. Tsvankin, R. Verm, and F. Hilterman, 2002, Multicomponent AVO analysis, Vacuum field, New Mexico: Geophysics, 67, 701-710. PDF

Tsvankin, I., 2001, Seismic signatures and analysis of reflection data in anisotropic media: Elsevier Science.

Le Stunff, Y., V. Grechka, and I. Tsvankin, 2001, Depth-domain velocity analysis in VTI media using surface P-wave data: Is it feasible?: Geophysics, 66, 897-903. PDF

Grechka, V., A. Pech, I. Tsvankin, and B. Han, 2001, Velocity analysis for tilted transversely isotropic media: A physical-modeling example: Geophysics, 66, 904-910. PDF

Tsvankin, I., and V. Grechka, 2000, Dip moveout of converted waves and parameter estimation in transversely isotropic media: Geophysical Prospecting, 48, 257-292. PDF

Grechka, V., and I. Tsvankin, 2000, Inversion of azimuthally dependent NMO velocity in transversely isotropic media with a tilted axis of symmetry: Geophysics, 65, 232-246. PDF

Grechka, V., P. Contreras, and I. Tsvankin, 2000, Inversion of normal moveout for monoclinic media: Geophysical Prospecting, 48, 577-602. PDF

Han, B., T. Galikeev, V. Grechka, J. Le Rousseau, and I. Tsvankin, 2000, A synthetic example of anisotropic P-wave processing for a model from the Gulf of Mexico: in Ikelle, L., and A. Gangi, Eds., Anisotropy 2000: Fractures, converted waves and case studies: Proceedings of the 9th International Workshop on Seismic Anisotropy (9IWSA), Soc. Expl. Geophys. PDF

Rommel, B. E., and I. Tsvankin, 2000, Polarization and group velocity of P-waves in orthorhombic media: in Ikelle, L., and A. Gangi, Eds., Anisotropy 2000: Fractures, converted waves and case studies: Proceedings of the 9th International Workshop on Seismic Anisotropy (9IWSA), Soc. Expl. Geophys. PDF

Grechka, V., and I. Tsvankin, 2000, Velocity analysis of converted waves based on the hyperbolic moveout equation: The RTM method: in Ikelle, L., and A. Gangi, Eds., Anisotropy 2000: Fractures, converted waves and case studies: Proceedings of the 9th International Workshop on Seismic Anisotropy (9IWSA), Soc. Expl. Geophys.

Bakulin, A., V. Grechka, and I. Tsvankin, 2000, Estimation of fracture parameters from reflection seismic data – Part I: HTI model due to a single fracture set: Geophysics, 65, 1788-1802. PDF

Bakulin, A., V. Grechka, and I. Tsvankin, 2000, Estimation of fracture parameters from reflection seismic data – Part II: Fractured models with orthorhombic symmetry: Geophysics, 65, 1803-1817. PDF

Bakulin, A., V. Grechka, and I. Tsvankin, 2000, Estimation of fracture parameters from reflection seismic data – Part III: Fractured models with monoclinic symmetry: Geophysics, 65, 1818-1830. PDF

Grechka, V., I. Tsvankin, and J. K. Cohen, 1999, Generalized Dix equation and analytic treatment of normal-moveout velocity for anisotropic media: Geophysical Prospecting, 47, 117-148. PDF

Grechka, V., S. Theophanis, and I. Tsvankin, 1999, Joint inversion of P- and PS-waves in orthorhombic media: Theory and a physical-modeling study: Geophysics, 64, 146-161. PDF

Grechka, V., and I. Tsvankin, 1999, 3-D moveout velocity analysis and parameter estimation for orthorhombic media: Geophysics, 64, 820-837. PDF

Thomsen, L., I. Tsvankin, and M. C. Mueller, 1999, Coarse-layer stripping of vertically variable azimuthal anisotropy from shear-wave data: Geophysics, 64, 1126-1138. PDF

Tsvankin, I., and H. B. Lynn, 1999, Special section on azimuthal dependence of P-wave signatures – Introduction: Geophysics, 64, 1139-1142. PDF

Grechka, V., and I. Tsvankin, 1999, 3-D moveout inversion in azimuthally anisotropic media with lateral velocity variation: Theory and a case study: Geophysics, 64, 1202-1218. PDF

Contreras, P., V. Grechka, and I. Tsvankin, 1999, Moveout inversion of P-wave data for horizontal transverse isotropy: Geophysics, 64, 1219-1229. PDF

Grechka, V., and I. Tsvankin, 1998, Feasibility of nonhyperbolic moveout inversion in transversely isotropic media: Geophysics, 63, 957-969. PDF

Grechka, V., and I. Tsvankin, 1998, 3-D description of normal moveout in anisotropic inhomogeneous media: Geophysics, 63, 1079-1092. PDF

Al-Dajani, A., and I. Tsvankin, 1998, Nonhyperbolic reflection moveout for horizontal transverse isotropy: Geophysics, 63, 1738-1753. PDF

Tsvankin, I., 1998, Influence of seismic anisotropy on velocity analysis and depth imaging:
in Model-Based Depth Imaging by S. Fagin, SEG.

Tsvankin, I., 1997, Reflection moveout and parameter estimation for horizontal transverse isotropy: Geophysics, 62, 614-629. PDF

Tsvankin, I., 1997, Moveout analysis in transversely isotropic media with a tilted symmetry axis: Geophysical Prospecting, 45, 479-512. PDF

Anderson, J. E., and I. Tsvankin, 1997, Dip-moveout processing by Fourier transform in anisotropic media: Geophysics, 62, 1260-1269. PDF

Tsvankin, I., 1997, Anisotropic parameters and P-wave velocity for orthorhombic media: Geophysics, 62, 1292-1309. PDF

Rueger, A., and I. Tsvankin, 1997, Using AVO for fracture detection: Analytic basis and practical solutions: The Leading Edge, 16, no. 10, 1429-1434. PDF

Tsvankin, I., 1996, P-wave signatures and notation for transversely isotropic media: An overview: Geophysics, 61, 467-483. PDF

Alkhalifah, T., I. Tsvankin, K. Larner, and J. Toldi, 1996, Velocity analysis and imaging in transversely isotropic media: Methodology and a case study: The Leading Edge, 15, no. 5, 371-378. PDF

Anderson, J. E., T. Alkhalifah, and I. Tsvankin, 1996, Fowler DMO and time migration for transversely isotropic media: Geophysics, 61, 835-844. PDF

Tsvankin, I., 1995, Normal moveout from dipping reflectors in anisotropic media: Geophysics, 60, 268-284. PDF

Tsvankin, I., 1995, Velocity analysis and time-to-depth conversion in transversely isotropic media: in Seismic Depth Estimation (Proceedings of the GST-SEG Spring Symposium, Tulsa), 100-116.

Tsvankin, I., and L. Thomsen, 1995, Inversion of reflection traveltimes for transverse isotropy: Geophysics, 60, 1095-1107. PDF

Tsvankin, I., 1995, Body-wave radiation patterns and AVO in transversely isotropic media: Geophysics, 60, 1409-1425. PDF

Alkhalifah, T., and I. Tsvankin, 1995, Velocity analysis for transversely isotropic media: Geophysics, 60, 1550-1566. PDF

Tsvankin, I., and L. Thomsen, 1994, Nonhyperbolic reflection moveout in anisotropic media: Geophysics, 59, 1290-1304. PDF

Tsvankin, I., and E. M. Chesnokov, 1990, Synthesis of body wave seismograms from point sources in anisotropic media: Journal of Geophysical Research, 95(B7), 11317-11331.

Tsvankin, I., and E. M. Chesnokov, 1990, Synthetic waveforms and polarizations at the free surface of an anisotropic halfspace: Geophysical Journal International, 101, 497-505.

Kiselev, A., and I. Tsvankin, 1989, A method of comparison of exact and asymptotic wave field computations: Geophysical Journal International, 96, 253-258.

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