Velocity structure of a bottom simulating reflector offshore Peru: Results from full waveform inversion

Earth and Planetary Science Letters

Volumn 139, Issue 3-4, 1996, Pages 459-469

  Pecher, Ingo A ^a,c   Minshull, Timothy A ^b   Singh, Satish C ^b   Von Huene, Roland ^a  

^a GEOMAR HELMHOLTZ CENTRE FOR OCEAN RESEARCH KIEL   (Germany)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^c U S GEOLOGICAL SURVEY   (United States)

Author keywords

Continental margin; Gas hydrates; P waves; Peru; Seismic surveys; Velocity structure

Indexed keywords

BOTTOM SIMULATING REFLECTOR; CONTINENTAL MARGIN; GAS HYDRATE; GAS HYDRATES; SEISMIC SURVEY; SEISMIC SURVEYS; VELOCITY STRUCTURE; WAVEFORM INVERSION;

PACIFIC, PERU MARGIN;

EID: 0029749396     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/0012-821X(95)00242-5     Document Type: Article

References (41)

1. K.A. Kvenvolden and T.J McDonald, Gas hydrates of the Middle America trench - DSDP Leg 84, Init. Rep. DSDP 84, 667-682, 1985.
2. T.H. Shipley, M.H. Houston, R.T. Buffler, F.J. Shaub, K.J. McMillen, J.W. Ladd and J.L. Worzel, Seismic evidence for widespread possible gas hydrate horizons on continental slopes and margins, Am. Assoc. Pet. Geol. Bull. 63, 2204-2213, 1979.
3. K.A. Kvenvolden, Gas hydrates - geologic perspective and global change, Rev. Geophys. 31, 173-187, 1993.
4. G.W. Claypool and I.R. Kaplan, The origin and distribution of methane in marine sediments, in: Natural Gases in Marine Sediments, I.R. Kaplan, ed., pp. 99-139, Plenum, New York, NY, 1974.
5. R.D. Hyndman and E.E. Davis, A mechanism for the formation of methane hydrate and seafloor bottom simulating reflectors by vertical fluid expulsion, J. Geophys. Res. 97, 7025-7041, 1992.
6. R.S. White, Gas hydrate layers trapping free gas in the Gulf of Oman, Earth Planet. Sci. Lett. 42, 114-120, 1979.
7. M.A. Mathews and R. von Huene, Site 570 methane hydrate zone, Init. Rep. DSDP 84, 773-790, 1985.
8. M.W. Lee, D.R. Hutchinson, W.F. Agena, W.P. Dillon, J.J. Miller and B.A. Swift, Seismic character of gas hydrates on the souteastern U.S. continental margin, Mar. Geophys. Res. 16, 163-184, 1994.
9. S.N. Domenico, Elastic properties of unconsolidated porous sand reservoirs, Geophysics 42, 1339-1368, 1977.
10. R. von Huene and J.J. Miller, Migrated multi-channel seismic reflection records across the Peru Continental margin, Proc. ODP Init. Rep. 112, 109-124, 1988.
11. E. Suess, R. von Huene, et al., Proc. Ocean Drill. Prog. Init. Rep. 112, Section 2, Site reports, 1988.
12. J.J. Miller, W.L. Myung and R. von Huene, An analysis of a reflection from the base of a gas hydrate zone off Peru, Am. Assoc. Pet. Geol. Bull. 75, 910-924, 1991.
13. S.C. Singh and T.A. Minshull, Velocity structure of a gas hydrate reflector at Ocean Drilling Program Site 889 from global seismic waveform inversion, J. Geophys. Res. 99, 24,221-24,233, 1994.
14. S.C. Singh, T.A. Minshull and G.D. Spence, Velocity structure of a gas hydrate reflector, Science 260, 204-207, 1993.
15. M.E. MacKay, R.D. Jarrard, G.K. Westbrook and R.D. Hyndman, Origin of bottom simulating reflectors: Geophysical evidence from the Cascadia accretionary prism, Geology 22, 459-462, 1994.
16. M.A. Biot, Theory of propagation of elastic waves in a fluid-saturated porous solid, J. Acoust. Soc. Am. 28, 168-191, 1956.
17. R. von Huene, I.A. Pecher and M.-A. Gutscher, Material flux in the Peru subduction zone due to the subduction of Nazca ridge and development of the accretionary prism, Tectonics, submitted.
18. S.C. Singh, M. Dietrich and F. Chapel, A complete waveform inversion and its application to ECORS data, in: Continental Lithosphere: Deep Seismic Reflections, R. Meissner, ed., pp. 391-400, Am. Geophys. Union Geodyn. Ser. 22, 1991.
19. T.A. Minshull, S.C. Singh and G.K. Westbrook, Seismic velocity structure at a gas hydrate reflector, offshore western Colombia from full waveform inversion, J. Geophys. Res. 99, 4715-4734, 1994.
20. C.H. Chapman, Generalized radon transforms and slant stacks, Geophys. J.R. Astron. Soc. 66, 445-453, 1981.
21. R.E. Sheriff and L.P. Geldart, Exploration Seismology, Vol. 1, 106 pp., Cambridge Univ. Press, Cambridge, 1982.
22. M.R. Warner, Absolute reflection coefficients from deep seismic reflections, Tectonophysics 173, 15-23, 1990.
23. E. Landa, P. Thore, V. Sorin and Z. Koren, Interpretation of velocity estimates from coherency inversion, Geophysics 56, 1377-1383, 1991.
24. E.L. Hamilton, Sound velocity-density relations in sea-floor sediments and rocks, J. Acoust. Soc. Am. 634, 366-377, 1978.
25. J.P. Castagna, M.L. Batzle and R.L. Eastwood, Relationships between compressional-wave and shear-wave velocities in clastic silicate rocks, Geophysics 50, 571-581, 1985.
26. P. Gimpel, Marine flachseismische Untersuchungen in der Kieler Bucht unter besonderer Beruecksichtigung von Scherwellenmessungen, Ph.D. Thesis, Univ. Kiel, 1987.
27. T.A. Minshull and S.C. Singh, Shallow structure of oceanic crust in the western North Atlantic from seismic waveform inversion and modelling, J. Geophys. Res. 98, 1777-1792, 1993.
28. F. Kormendi and M. Dietrich, Non-linear waveform inversion of plane-wave seismograms in stratified elastic media, Geophysics 56, 664-674, 1991.
29. B.L.N. Kennett and N.J. Kerry, Seismic waves in a stratified half space, Geophys. J.R. Astron. Soc. 57, 557-583, 1979.
30. W.J. Ostrander, Plane wave reflection coefficients for gas sands at nonnormal angles of incidence, Geophysics 49, 1637-1648, 1984.
31. J. Geertsma, Velocity-log interpretation: The effect of rock bulk compressibility, Soc. Pet. Eng. J. 1, 235-248, 1961.
32. F. Gassmann, Ueber die Elastizitaet poroeser Medien, Vierteljahreszeitschr. Naturforsch. Ges. Zuerich 96, 1-23, 1951.
33. W.T. Wood, P.L. Stoffa and T.H. Shipley, Quantitative detection of methane hydrate through high resolution seismic velocity analysis, J. Geophys. Res. 99, 9681-9695, 1994.
34. N.L. Bangs, D.S. Sawyer and X. Golovchenko, Free gas at the base of the gas hydrate zone in the vicinity of the Chile triple junction, Geology 21, 905-908, 1993.
35. M. Honarpour, L. Koederitz and A.M. Harvey, Relative Permeability of Petroleum Reservoirs, CRC Press, Boca Raton, FL, 1986.
36. D.M. Hussong, T.B. Reed and A.B Wade, Seamarc II sonar imagery and bathymetry of the Nazca Plate and Peru Forearc, ODP Leg 112, Proc. ODP Init. Rep. 112, 125-130, 1988.
37. T.H. Shipley and B.M. Didyk, Occurrence of methane hydrate offshore southern Mexico, Init. Rep. DSDP 66, 547-555, 1985.
38. L.D. Kulm, T.M. Thornburg, E. Suess, J. Resig and P. Fryer, Clastic, diagenetic, and metamorphic lithologies of a subsiding continental block: central Peru forearc, Proc. ODP Init. Rep. 112, 91-108, 1988.
39. G. Angenheister, ed., Lanndolt-Boernstein, Numerical Data and Functional Relationships in Science and Technology. Vol. 1: Physical Properties of Rocks. Subvol. b, 604 pp., Springer, Berlin, 1982.
40. P.W. Atkins, Physical Chemistry, 1022 pp., Oxford Univ. Press, Oxford, 1978.
41. R.E. Wyman, Petrogeophysics, the interrelationships of petrophysics, geology and geophysics, AAPG Continuing Education - Stratigraphic Interpretation of Seismic Data, Am. Assoc. Pet. Geol., 1982.