1887
ASEG2001 - 15th Geophysical Conference
  • ISSN: 2202-0586
  • E-ISSN:

Abstract

Analysis of susceptibility and density data from a borehole in the Bushveld igneous complex in South Africa was performed using statistical tools such as power spectra, wavelet analysis, and windowed histogram plots. This analysis has revealed significant patterns and cycles that correlate both with rock type and subtle layering within and between units. These results can now be used to test models of layering processes.

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/content/journals/10.1071/ASEG2001ab025
2001-12-01
2026-01-16
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References

  1. Ashwal, L.D., Webb, S.J., and Knoper, M.W., 2000. Physical Properties of Bushveld rocks: magnetic and density profiles in the Bellevue drillcore, Northern Lobe. Abstracts of the NRF Bushveld workshop, Gethlane Lodge.
  2. Cairncross, B. and Dixon R. 1995, Minerals of South Africa Geol. Soc. S. Afr., 290 pgs.
  3. Cawthorn, R.G. and Walraven, F., 1998. Emplacement and crystallization time for the Bushveld Complex. Jour, of Pet., 39(9), 1669-1687.
  4. Eales, H.V., Botha, W.J., Hattingh, P.J., de Klerk, W.J., Maier, W.D., and Odgers, A.T.R., 1993. The mafic rocks of the Bushveld complex: A review of emplacement and crystallisation history and mineralisation, in the light of recent data. Jour, of Afr. E. Sci. v.16 no. l/2p.l21-142.
  5. Knoper M.W. and von Groenewaldt G., 1996. The Bellevue (BV-1) borehole core log: 2.9 km of Bushveld Complex stratigraphy (northern lobe), Potgietersrus, South Africa. Available online at: http://users. iafrica. com/k/kn/knoper/bic. htm
  6. Maré, L.P., Oosthuizen, B.C., Corner, B., Nkwana, M.M. and Antoine, L.A.G., 1999. South African Geophysical Atlas, Volume TV, Physical Property Atlas of South African Rocks. Council for Geoscience, 150 pp.
  7. Rampino, M.R., Prokoph, A., and Adler, A., 2000. Tempo of the end-Permian event: High-resolution cyclostratigraphy at the Permian-Triassic boundary. Geology, 28(7), 643-646.
  8. Webb, S.J., and Cooper, G.R.J., 2000. Implications for layering mechanisms based on statistical analysis of susceptibility data from the Bellevue borehole. Abstracts of the NRF Bushveld workshop, Gethlane Lodge.
/content/journals/10.1071/ASEG2001ab025
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  • Article Type: Research Article
Keyword(s): density; layering; susceptibility; wavelets
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