Tomographic seismic studies of the methane hydrate stability zone in the Cascadia Margin

Geological Society Special Publication

Volumn 137, Issue , 1998, Pages 133-140

  Hobro, J W ^a   Minshull, T A ^a   Singh, S C ^a  

^a UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

GAS HYDRATE; SEISMIC TOMOGRAPHY; SEISMIC VELOCITY;

NORTH AMERICA;

EID: 0032322949     PISSN: 03058719     EISSN: None     Source Type: Book Series    
DOI: 10.1144/GSL.SP.1998.137.01.10     Document Type: Article

References (17)

1. FARRA, V. 1990. Amplitude computation in heterogeneous media by ray perturbation theory: a finite element approach. Geophysical Journal International, 103, 341-354.
2. FINK, C. 1995. Methane Hydrate Distribution Offshore Vancouver Island From Detailed Single Channel Seismic Studies. MSc thesis, School of Earth and Ocean Sciences, University of Victoria, British Columbia.
3. HOLBROOK, W., HOSKINS, H., WOOD, W., STEPHEN, R., LIZARRALDE, D. & LEG 164 SCIENCE PARTY. 1996. Methane hydrate and free gas on the Blake Ridge from vertical seismic profiling. Science, 273, 1840-1843.
4. HYNDMAN, R. & SPENCE, G. 1992. A seismic study of methane hydrate marine bottom simulating reflectors. Journal of Geophysical Research, 97, 6683-6698.
5. LEE, M., HUTCHINSON, D., COLLETT, T. & DILLON, W. 1996. Seismic velocities for hydrate-bearing sediments using weighted equation. Journal of Geophysical Research, 101, 20 347-20 358.
6. MACKAY, M., JARRARD, R., WESTBROOK, G. & HYNDMAN, R. 1994. Origin of bottom-simulating reflectors: geophysical evidence from the Cascadia accretionary prism. Geology, 22, 459-462.
7. MCCAUGHEY, M. & SINGH, S. 1997. Simultaneous velocity and interface tomography of normal-incidence and wide-aperture seismic travel-time data. Geophysical Journal International, 131, 87-99.
8. SCALES, J. A. 1987. Tomographic inversion via the conjugate gradient method. Geophysics, 52, 179-185.
9. SHIPLEY, T., HOUSTON, M., BUFFLER, R. et al. 1979. Seismic reflection evidence for the widespread occurrence of possible gas-hydrate horizons on continental slopes and rises. AAPG Bulletin, 63, 2204-2213.
10. SINGH, S., MINSHULL, T. & SPENCE, G. 1993. Velocity structure of a gas hydrate reflector. Science, 260, 204-207.
11. SPENCE, G., MINSHULL, T. & FINK, C. 1995. Seismic studies of methane gas hydrate, offshore Vancouver Island. In: CARSON, B., WESTBROOK, G., MUSGRAVE, R. & SUESS, E. (eds) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX. Ocean Drilling Program, 163-174.
12. WESTBROOK, G., CARSON, B., MUSGRAVE, R. et al. 1994. Proceedings of the Ocean Drilling Program, Initial Reports, College Station, TX. Ocean Drilling Program, 146(1).
13. WHITSETT, J. 1996. Seismic Modelling of Methane Hydrates Found in the Northern Cascadia Accretionary Prism off Vancouver Island. BSc thesis, School of Earth and Ocean Sciences, University of Victoria, British Columbia.
14. WILSON, W. 1960. Equation for the speed of sound in sea water. Journal of the Acoustical Society of America, 32, 13-57.
15. WOOD, W., STOFFA, P. & SHIPLEY, T. 1994. Quantitative detection of methane through high-resolution seismic velocity analysis. Journal of Geophysical Research, 99, 9681-9695.
16. YUAN, T., HYNDMAN, R., SPENCE, G. & DESMONS, B. 1996. Seismic velocity increase and deep-sea gas hydrate concentration above a bottom-simulating reflector on the northern Cascadia continental slope. Journal of Geophysical Research, 101, 13,655-13,671.
17. ZELT, C. & SMITH, R. 1992. Seismic traveltime inversion for 2-D crustal velocity structure. Geophysical Journal International, 108, 16-34.