3D seismic refraction tomography:
A comparison of two methods applied to data from the Faeroe Basin

Colin A. Zelt
Department of Geology and Geophysics, Rice University 6100 Main Street, Houston, Texas, 77005-1892, USA

Penny J. Barton
Bullard Laboratories, Department of Earth Sciences, University of Cambridge Madingley Road, Cambridge, CB3 0EZ, UK

Journal of Geophysical Research, 103, 7187-7210, 1998.

paper in postscript format.

The files in this directory contain more complete and/or color figures in postscript format for the above paper. None of the figures in the published paper are contained in this directory. These can be viewed in JPEG format here.

(RI = regularized inversion; BP = backprojection)

1. preferred final model z-slices RI
2. preferred final model z-slices BP

3. preferred final model y-slices RI
4. preferred final model y-slices BP

5. ray coverage RI
6. ray coverage BP

7. final model RI using sz=.075
8. final model RI using sz=.25
9. final model RI using alternate starting model
10. final model RI using synthetic data from preferred final model

11. final model BP using constant smoothing operator
12. final model BP using Hole [1992] method
13. final model BP using alternate starting model
14. final model BP inversion of synthetic data from preferred final model

15. final model RI using flatness constraint between 6.6 and 8.6 km
16. final model RI using flatness constraint between 9 and 14 km

17. RI checkerboard test
18. BP checkerboard test

19. RI resolvability
20. BP resolvability

21. checkerboard test assuming 100% data recovery
22. resolvability assuming 100% data recovery

23. maximum difference between 5 final models

The relationship between figures and plates in the published manuscript and the files in this page are as follows:

plate 1 ==> 1,2
figure 6 ==> 3,4
figure 8 ==> 5,6
plate 2 ==> 7,8,9,10
plate 3 ==> 11,12,13,14
plate 4 ==> 15,16
figure 9 ==> 17,18
figure 10 ==> 19,20
figure 11 ==> 21,22
figure 12 ==> 23

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