The effects of three-dimensional structure on two-dimensional images of crustal seismic sections and on the interpretation of shear zone morphology

Geophysical Journal International

Volumn 164, Issue 3, 2006, Pages 490-500

  Hobbs, R W ^a   Drummond, B J ^b   Goleby, B R ^b  

^a DURHAM UNIVERSITY   (United Kingdom)

^b GEOSCIENCE AUSTRALIA   (Australia)

Author keywords

Crustal structure; Deep seismic reflection; Reflection seismology; Seismic modelling; Seismic structure

Indexed keywords

GEOLOGICAL MAPPING; LOWER CRUST; SEISMIC REFLECTION; SEISMIC SURVEY; SEISMOLOGY; SHEAR ZONE;

EID: 33645964278     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2006.02814.x     Document Type: Article

References (26)

1. Al-Chalabi, M., 1997. Time-depth relationships for multilayer depth conversion. Geophys. Prospect., 45 (4), 715-720.
2. Blundell, D.J., 1990. Seismic images of continental lithosphere. J geol Soc. Lond., 147, 895-913.
3. Blundell, D.J. & Raynaud, B., 1986. Modelling lower crust reflections observed on BIRPS profiles. In Reflection Seismology: A global perspective, ed. Barazangi, M., American Geophysical Union, Geodynamics Series, 13, 287-295.
4. Brown, L.D. et al., 1996. Bright spots, structure, and magmatism in Southern Tibet from INDEPTH Seismic Reflection Profiling. Science, 274.
5. Cao, S. & Kennett, B.L.N., 1989. Reflection seismograms in a 3-D elastic model: An isochronal approach. Geophys. J. Int., 99, 63-80.
6. Cao, S., Goleby, B.R. & Kennett, B.L.N., 1991. Modelling seismic reflections in central Australia by the 3-D isochronal technique. Exploration Geophysics, 22, 525-532.
7. Claerbout, J.F., 1985. Imaging the Earth's Interior. Blackwell Scientific Publ.
8. Drummond, B.J., Goleby, B.R. & Swager, C.P., 2000. Crustal signature of Late Archaean tectonic episodes in the Yilgarn craton, Western Australia: Evidence from deep seismic sounding. Tectonophysics, 329, 193-221.
9. Drummond, B.J., Hobbs, R.W. & Goleby, B.R., 2004. The effects of out-of-plane seismic energy on reflections in crustal-scale 2-D seismic sections. Tectonophysics, 388, 213-244.
10. Fountain, D.M., Hurich, C.A. & Smithson, S.B., 1984. Seismic reflectivity of mylonite zones in the crust. Geology, 12, 195-198.
11. Goleby, B.R. et al., 2000. Crustal structure and fluid flow in the Eastern Goldfields, Western Australia. Australian Geological Survey Organisation, Record, 2000/34.
12. Hobbs, R., Tong, C.H. & Pye, J., 2003. Modelling and processing of 3-D seismic data collected over the Overlapping Spreading Centre on the East Pacific Rise at 9 03′N, New Insights into Structural Interpretation and Modelling, Special Publication of The Geological Society, London, 212, 251-259.
13. Jones, T.D. & Nur, A., 1982. Seismic velocity and anisotropy in mylonites and the reflectivity of deep crustal fault zones. Geology, 10, 260-263.
14. Jones, T.D. & Nur, A., 1984. The nature of seismic reflections from deep crustal fault zones. J. geophys. Res., 89, 3153-3171.
15. Klemperer, S.L. & the BIRPS Group, 1987. Reflectivity of the crystalline crust: Hypotheses and tests. Geophys. J. R. astr. Soc., 89, 217-222.
16. Law, A. & Snyder, D.B., 1997. Reflections from a mylonitized zone in central Sweden. J. geophys. Res., 102, 8411-8425.
17. Loewenthal, D., Lu, L., Roberson, R. & Sherwood, J., 1976. The wave equation applied to migration: Geophys. Prospect., 24, 380-399.
18. Makovsky, Y. & Klemperer, S.L., 1999. Measuring the seismic properties of Tibetan bright spots: Evidence for free aqueous fluids in the Tibetan middle crust. J. geophys. Res., 104 (B5), 10795-10825.
19. Matthews, D.H. & Cheadle, M.J., 1986. Deep reflections from the Caledonides and Variscides west of Britain and comparison with the Himalayas, in eds Barazangi, M. & Brown, L., Reflection Seismology: A Global Perspective. American Geophysical Union, Geodynamics Series, 13, 5-19.
20. Mufti, I.R., 1990. Large-scale three-dimensional seismic models and their interpretive significance: Geophys. Soc. of Expl. Geophys., 55, 1166-1182.
21. Novais, A.N. & Santos, L.T., 2005. 2.5D finite-difference solution of the acoustic wave equation. Geophys. Prospect., 53 (4), 523-531.
22. Raynaud, B., 1988. Diffraction modelling of 3-D lower-crust reflectors. Geophysical Journal, 93, 149-161.
23. Swager, C.P., Goleby, B.R., Drummond, B.J., Rattenbury, M.S. & Williams, P.R., 1997. Crustal structure of granite-greenstone terranes in the Eastern Goldfields, Yilgarn Craton, as revealed by seismic reflection profiling. Precambrian Research, 83 (1-3), 43-56.
24. Warner, M., 1990. Basalts, water or shear zones in the lower continental crust? Tectonophysics 173, 163-174.
25. Wild, A.J. & Hudson, J.A., 1998. A geometrical approach to the elastic complex screen. J. geophys. Res., 103, 707-725.
26. Wild, A.J., Hobbs, R.W. & Frenje, L., 2000. Modelling complex media: an introduction to the phase-screen method. Physics of the Earth and Planetary Interiors, 120, 219-225.