Velocity Database For Basins of the Great Australian Bight

Peter Petkovic

doi:10.1071/EG04178

ISSN: 0812-3985
E-ISSN: 1834-7533

Velocity Database For Basins of the Great Australian Bight
Authors Peter Petkovic^a
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^a Geoscience Australia, GPO Box 378, Canberra City, ACT, 2601, Tel:+61 2 6249 9278, Fax:+61 2 6249 9980, Email:[email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 35, Issue 3, Sep 2004, p. 178 - 181
DOI: https://doi.org/10.1071/EG04178
- Received: 29 Aug 2004
- Published online: 01 Sep 2004

Abstract

The seismic stacking-velocity data in the Great Australian Bight are a useful dataset for calculating depths and sediment thicknesses on a regional scale. This work compares these data with P-wave velocities from sonobuoys and sonic logs from wells, and on this basis, a depth over-estimate of at least 15% can be expected from the depths derived from stacking velocities. Megasequence boundary depths are calculated for the Ceduna Terrace to further illustrate data quality. The database makes available the unfiltered stacking velocities using conventional and horizon-consistent formats.

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References

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Mclntosh, A. F., and Oden, J. P., 1993, Recycling stacking velocities for better seismic processing: Expl. Geophys., 24, 671-678.
Petkovic, P., 2004, Time-depth Junctions for the Otway Basin: Geosci. Aust, Record 2004/2.
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Somerville, R., 2001, The Ceduna Basin - a snapshot of prospectivity: J. Austral. Petr Prod. Expl. Assn., 41, 321-346.
Stagg, H. M.J., Willcox, J. B., Needham, D. J.L., O’Brien, G. W., Cockshell, CD., Hill, A. J., Thomas, B., and Hough, L.P, 1990, Basins of the Great Australian Bight region - geology and petroleum potential: Continental Margins Program Folio 5: Bur. Miner. Resour. Geol. Geophys.
Talwani, M., Mutter, J. C., Houtz, R., and Konig, M., 1979, The crustal structure and evolution of the area underlying the magnetic quiet zone on the margin south of Australia: in Watkins, J. S., Montadert, L., and Dickenson, PW. (eds.), Geological and Geophysical Investigations of Continental Margins: Memoirs, Am. Assn. Petr. Geol.
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Article Type: Research Article

Keyword(s): database; refraction; seismic; stacking velocity

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Velocity Database For Basins of the Great Australian Bight

Abstract

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