Fine-scale velocity structure of upper oceanic crust from full waveform inversion of downward continued seismic reflection data at the Lucky Strike Volcano, Mid-Atlantic Ridge

Geophysical Research Letters

Volumn 39, Issue 8, 2012, Pages

  Arnulf, A F ^a,b   Harding, A J ^c   Singh, S C ^a   Kent, G M ^b   Crawford, W ^a  

^a INSTITUT DE PHYSIQUE DU GLOBE DE PARIS   (France)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c UNIVERSITY OF NEVADA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

REFRACTION; SEISMIC WAVES; VOLCANOES; WAVEFORM ANALYSIS;

DATA DRIVEN; DOWNWARD CONTINUATION; FINE-SCALE STRUCTURES; FULL-WAVEFORM INVERSION; GEOLOGIC INTERPRETATION; HIGH RESOLUTION; LOCAL OPTIMIZATIONS; LONG WAVELENGTH; MID ATLANTIC RIDGE; MULTI-CHANNEL SEISMIC; NORMAL FAULTS; OCEANIC CRUST; P-WAVE VELOCITY; SCATTERING ENERGY; SEA FLOOR; SEISMIC REFLECTION DATA; SHALLOW CRUST; TRAVEL TIME TOMOGRAPHY; UPPER CRUST; VELOCITY IMAGES; VELOCITY STRUCTURE; WAVEFORM INVERSION; WIDE-ANGLE REFLECTION;

THREE DIMENSIONAL;

DATA SET; FAULT; MID-OCEAN RIDGE; OCEANIC CRUST; OPTIMIZATION; P-WAVE; SEAFLOOR MAPPING; SEISMIC DATA; SEISMIC REFLECTION; SEISMIC REFRACTION; UPPER OCEAN; VELOCITY PROFILE; WAVE VELOCITY; WAVEFORM ANALYSIS;

ATLANTIC OCEAN; LUCKY STRIKE FIELD; MID-ATLANTIC RIDGE;

EID: 84860175133     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2012GL051064     Document Type: Article

References (35)

1. Arnulf, A. F., S. C. Singh, A. J. Harding, G. M. Kent, and W. Crawford (2011), Strong seismic heterogeneity in layer 2A near hydrothermal vents at the Mid-Atlantic Ridge, Geophys. Res. Lett, 38, L13320, doi:10.1029/2011GL047753.
2. Berryhill, J. R. (1979), Wave-equation datuming, Geophysics, 44, 1329-1344, doi:10.1190/1.1441010.
3. Berryhill, J. R. (1984), Wave-equation datuming before stack, Geophysics, 49, 2064-2066, doi:10.1190/1.1441620.
4. Canales, J. P. (2010), Small-scale structure of the Kane oceanic core complex, Mid-Atlantic Ridge 23°30′N, from waveform tomography of multichannel seismic data, Geophys. Res. Lett., 37, L21305, doi:10.1029/ 2010GL044412.
5. Canales, J. P., R. S. Detrick, S. M. Carbotte, G. M. Kent, J. B. Diebold, A. J. Harding, J. Babcock, M. R. Nedimovíc, and E. van Ark (2005), Upper crustal structure and axial topography at intermediate spreading ridges: Seismic constraints from the Juan de Fuca Ridge, J. Geophys. Res., 110, B12104, doi:10.1029/2005JB003630. (Pubitemid 43167909)
6. Christeson, G., G. Kent, G. Purdy, and R. Detrick (1996), Extrusive thickness variability at the East Pacific Rise, 9°-10°N: Constraints from seismic techniques, J. Geophys. Res., 101(B2), 2859-2873, doi:10.1029/95JB03212. (Pubitemid 26469077)
7. Christeson, G. L., K. D. McIntosh, and J. A. Karson (2007), Inconsistent correlation of seismic layer 2a and lava layer thickness in oceanic crust, Nature, 445, 418-421, doi:10.1038/nature05517. (Pubitemid 46160907)
8. Collier, J. S., and S. S. Singh (1997), Detailed structure of the top of the melt body beneath the East Pacific Rise at 9°40′N from waveform inversion of seismic reflection data, J. Geophys. Res., 102(B9), 20,287-20,304, doi:10.1029/97JB01514.
9. Combier, V. (2007), Mid-ocean ridge processes. Insights from 3D reflection seismics at 9°N OSC on the East Pacific Rise, and the Lucky Strike Volcano on the Mid-Atlantic Ridges, PhD thesis, Lab. de Geosci. Mar., Inst. de Phys. du Globe de Paris, Paris.
10. Detrick, R. S., H. D. Needham, and V. Renard (1995), Gravity anomalies and crustal thickness variations along the Mid-Atlantic Ridge between 33°N and 40°N, J. Geophys. Res., 100, 3767-3787, doi:10.1029/94JB02649.
11. Fouquet, Y., J.-L. Charlou, I. Costa, J.-P. Donval, J. Radford-Knoery, H. Pellé, H. Ondréas, N. Lourenço, M. Ségonzac, and M. Kingston Tivey (1994), A detailed study of the Lucky Strike hydrothermal site and discovery of a new hydrothermal site: Menez Gwen: Preliminary results of the DIVA1 cruise (5-29 May, 1994), InterRidge News, 3(2), 14-17.
12. Gardner, G. H. F., L. W. Gardner, and A. R. Gregory (1974), Formation velocity and density-The diagnostic basics for stratigraphic traps, Geophysics, 39, 770, doi:10.1190/1.1440465.
13. Hamilton, E. L. (1978), Sound velocity-density relations in sea-floor sediments and rocks, J. Acoust. Soc. Am., 63, 366-377, doi: 10.1121/1.381747.
14. Harding, A., J. Orcutt, M. Kappus, E. Vera, J. Mutter, R. Buhl, R. Detrick, and T. Brocher (1989), Structure of young oceanic crust at 13°N on the East Pacific Rise from expanding spread profile, J. Geophys. Res., 94(B9), 12,163-12,196, doi:10.1029/JB094iB09p12163.
15. Harding, A. J., G. M. Kent, and J. A. Orcutt (1993), A multichannel seismic investigation of the upper crustal structure at 9°N on the East Pacific Rise: Implications for crustal accretion, J. Geophys. Res., 98, 13,925-13,944, doi:10.1029/93JB00886.
16. Humphris, S. E., D. J. Fornari, D. S. Scheirer, C. R. German, and L. M. Parson (2002), Geotectonic setting of hydrothermal activity on the summit of Lucky Strike Seamount (37° 17′N, Mid-Atlantic Ridge), Geo-chem. Geophys. Geosyst., 3(8), 1049, doi:10.1029/2001GC000284.
17. Hussenoeder, S. A., G. M. Kent, and R. S. Detrick (2002), Upper crustal seismic structure of the slow spreading Mid-Atlantic Ridge, 35°N: Constraints on volcanic emplacement processes, J. Geophys. Res., 107(B8), 2156, doi:10.1029/2001JB001691.
18. Kent, G. M., A. J. Harding, and J. A. Orcutt (1993), Distribution of magma beneath the East Pacific Rise between the Clipperton transform and the 9°17′N deval from forward modeling of common depth point data, J. Geophys. Res., 98, 13,945-13,969, doi:10.1029/93JB00705.
19. Larkin, S. P., and A. Levander (1996), Wave equation datuming for improving deep crustal seismic images, Tectonophysics, 264, 371-379, doi:10.1016/S0040-1951(96)00137-0.
20. Levander, A. R. (1988), Fourth-order finite-difference P-SV seismograms, Geophysics, 53, 1425-1436, doi:10.1190/1.1442422.
21. Moreira, M., R. Doucelance, M. D. Kurz, B. Dupré, and C. J. Allegre (1999), Helium and lead isotope geochemistry of the Azores Archipelago, Earth Planet. Sci. Lett, 169, 189-205, doi:10.1016/S0012-821X(99)00071-0. (Pubitemid 29384911)
22. Ondréas, H., Y. Fouquet, M. Voisset, and J. Radford-Knoery (1997), Detailed study of three contiguous segments of the Mid-Atlantic Ridge, south of the Azores (37°N to 38°30′N), using acoustic imaging coupled with submersible observations, Mar. Geophys. Res., 19, 231-255, doi:10.1023/A: 1004230708943.
23. Ondréas, H., M. Cannat, Y. Fouquet, A. Normand, P. M. Sarradin, and J. Sarrazin (2009), Recent volcanic events and the distribution of hydro-thermal venting at the Lucky Strike hydrothermal field, Mid-Atlantic Ridge, Geochem. Geophys. Geosyst, 10, Q02006, doi:10.1029/2008GC002171.
24. Operto, S., C. Ravaut, L. Improta, J. Virieux, A. Herrero, and P. Dell'Aversana (2004), Quantitative imaging of complex structures from dense wide-aperture seismic data by multiscale traveltime and waveform inversions: A case study, Geophys. Prospect, 52(6), 625-651, doi:10.1111/j.1365-2478.2004. 00452.x. (Pubitemid 39520388)
25. Pratt, R. G. (1999), Seismic waveform inversion in the frequency domain. Part I: Theory and verification in a physical scale model, Geophysics, 64, 888-901, doi:10.1190/1.1444597. (Pubitemid 29511468)
26. Sears, T. J., P. J. Barton, and S. C. Singh (2010), Elastic full waveform inversion of multicomponent ocean-bottom cable seismic data: Application to Alba Field, U. K. North Sea, Geophysics, 75(6), R109, doi:10.1190/1.3484097.
27. Seher, T., W. C. Crawford, S. C. Singh, and M. Cannat (2010a), Seismic layer 2A variations in the Lucky Strike segment at the Mid-Atlantic Ridge from seismic reflection measurements, J. Geophys. Res., 115, B07107, doi:10.1029/2009JB006783.
28. Seher, T., W. C. Crawford, S. C. Singh, M. Cannat, V. Combier, and D. Dusunur (2010b), Crustal velocity structure of the Lucky Strike segment of the Mid-Atlantic Ridge at 37°N from seismic refraction measurements, J. Geophys. Res., 115, B03103, doi:10.1029/2009JB006650.
29. Seher, T., S. C. Singh, W. Crawford, and J. Escartin (2010c), Upper crustal velocity structure beneath the central Lucky Strike Segment from seismic refraction measurements, Geochem. Geophys. Geosyst., 11, Q05001, doi:10.1029/2009GC002894.
30. Shipp, R. M., and S. C. Singh (2002), Two-dimensional full wavefield inversion of wide-aperture marine seismic streamer data, Geophys. J. Int., 151(2), 325-344, doi:10.1046/j.1365-246X.2002.01645.x. (Pubitemid 35219052)
31. Shtivelman, V., and A. Canning (1988), Datum correction by wave-equation extrapolation, Geophysics, 53(10), 1311-1322, doi:10.1190/1.1442409.
32. Singh, S. C, et al. (2006), Discovery of a magma chamber and faults beneath a Mid-Atlantic Ridge hydrothermal field, Nature, 442, 1029-1032, doi:10.1038/nature05105. (Pubitemid 44330258)
33. Sirgue, L., and R. G. Pratt (2004), Efficient waveform inversion and imaging: A strategy for selecting temporal frequencies, Geophysics, 69, 231-248, doi:10.1190/1.1649391. (Pubitemid 38423160)
34. Tarantola, A. (1986), A strategy for nonlinear elastic inversion of seismic reflection data, Geophysics, 51, 1893-1903, doi:10.1190/1.1442046. (Pubitemid 17461369)
35. Virieux, J., and S. Operto (2009), An overview of full-waveform inversion in exploration geophysics, Geophysics, 74(6), WCC1, doi:10.1190/1.3238367.