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Abstract

Summary

Seismic attributes such as dip, azimuth, and edge detection were computed for platinum-bearing horizons to enhance the mapping of minor faults and potholes. These attributes are very effective in enhancing structural continuity and small circular features. At the regional scale, the platinum horizon exhibits a strong seismic character and has a variable strike and dip across the study area as a result of potholes and faulting. The edge detection attributes (e.g., variance, dip, azimuth and the combination of dip and azimuth) provide better imaging of the large (> 100 m in diameter) and small (< 100 m in diameter) potholes and faults. The mapped potholes are oval in shape and the faults are listric in form; dipping relatively steeply (65°–70°) at a depth of 1 km below the surface. At greater depths, faults intersect the pothole structures. This information could be used to assess and mitigate the risks posed by pothole structures as platinum mining proceeds to greater depths.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201700228
2017-05-02
2024-04-19

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References

  1. Berryhill, J. R.
    [1979] Wave-equation datuming. Geophysics, 44(8), 1329–1344.
     [Google Scholar]
  2. [2012] Wave-equation datuming before stack. Geophysics, 49(49), 2064–2066.
     [Google Scholar]
  3. Reshef, M.
    [2012] Depth migration from irregular surfaces with depth extrapolation methods. Geophysics, 56(1), 119–122.
     [Google Scholar]
  4. Ferguson, R. J., and Margrave, G. F.
    [2005] Planned seismic imaging using explicit one-way operators. Geophysics, 70(5): 101–109
     [Google Scholar]
  5. LiY.P., ZhaoX.M, Zhou, R., Dushman, D., and Janak, P.
    [2005] 3C VSP tomography inversion for subsurface P-and S-wave velocity distribution. SEG Technical Program Ecpanded Abstracts, 2005, 24: 2625–2628.
     [Google Scholar]
  6. LiZ.C.
    [2014] Research status and development trends for seismic migration technology. Oil Geophysical Prospecting, 49(1): 1–21.
     [Google Scholar]
  7. StewartR. R.
    [1984] VSP interval velocity from travel time inversion. Geophysical Prospecting, 32(4): 602–628.
     [Google Scholar]
  8. Sun, Z.D., Xie, C.H., Hao, H. M., and Yong, X. S.
    [2011] VSP velocity extraction using wave field extrapolation. Oil Geophysical Prospecting, 46(Supplement 1): 12–16.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201700228
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3D Seismic Attributes to Enhance the Detection of Potholes and Subtle Faults, Bushveld Complex (South Africa)
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201700228
/content/papers/10.3997/2214-4609.201700228
/content/papers/10.3997/2214-4609.201700228
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