1887
Volume 29, Issue 3-4
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

A number of electromagnetic and electrical methods have been applied jointly to map groundwater contamination near minesite landforms. The main methods being investigated are transient electromagnetic (TEM) and direct current (DC) resistivity soundings, DC profiling, self potential (SP), and induced polarisation (IP) measurements, combined with any existing hydrogeological and hydrogeochemical data.

At the tailings dam of the disused Brukunga pyrite mine in South Australia, reaction of groundwater with the tailings causes the formation and discharge of sulphuric acid. Geophysical methods have been investigated to determine whether they can be used to characterise variations in depth to watertable and map preferred groundwater flow paths through the tailings dam. The results of the geophysical surveys show that it is difficult to determine any preferred channels of groundwater flow from SP profiling data alone, but TEM and DC sounding measurements have enabled accurate determination of watertable levels and aquifer resistivity. The shallowest and most resistive part of the aquifer occurs in the southeast of the site, and we deduce that a possible source of fresh groundwater entering the site occurs here. It has been recommended that efforts to reduce acid formation in the tailings dam should concentrate on reducing this inflow of groundwater.

© 1998 ASEG
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1998-09-01
2026-01-18

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References

  1. Benson, A.K., Payne, K.L., and Stubben, M.A., 1997, Mapping groundwater contamination using dc resistivity and VLF geophysical methods - A case study: Geophysics, 62, 80–86.
  2. Buselli, G., and Hwang, H.S., 1996, Electrical and electromagnetic surveys of a mine tailings dam at Brukunga, SA: CSIRO Exploration and Mining Report 277F.
  3. Buselli, G., Barber, C., Davis, G.B., and Salama, R.B., 1990, Detection of groundwater contamination near waste disposal sites with transient electromagnetic and electrical methods, in Ward, S.H., Ed., Geotechnical and Environmental Geophysics, Vol. II: Society of Exploration Geophysicists, Tulsa, Oklahoma, 27–39.
  4. Campbell, D.L., Fitterman, D.V., Hein, A.S., and Jones, D.P., 1998, Spectral induced polarization studies of mine dumps near Silverton, Colorado, in Bell, R.S., Powers, M.H., and Larson, T., Eds., Proceedings of the Symposium on the Application of Geophysics to Environmental and Engineering Problems: Environmental and Engineering Geophysical Society, Wheat Ridge, Colorado, 761–769.
  5. Corwin, R.F., 1990, The Self-Potential method for environmental and engineering applications, in Ward, S.H., Ed., Geotechnical and Environmental Geophysics, Vol. I: Society of Exploration Geophysicists, Tulsa, Oklahoma, 127–145.
  6. Duncan, A.C., Roberts, G.P., Buselli, G., Pik, J.P., Williamson, D.R., Roocke, P.A., Thorn, R.G., and Anderson, A., 1992, SALTMAP - Airborne EM for the environment: Explor. Geophys., 23, 123–126.
  7. Frangos, W., 1997, Electrical detection of leaks in lined waste disposal ponds: Geophysics, 62, 1737–1744.
  8. Hohmann, G.W. and, Raiche, A.P., 1987, Inversion of controlled-source electromagnetic data, in Nabighian, M.N., Ed., Electromagnetic Methods in Applied Geophysics, Vol. 1, Theory: Society of Exploration Geophysicists, Tulsa, Oklahoma, 469–503.
  9. Lu, K., 1998, Efficient induced polarisation and resistivity techniques: PhD thesis, Macquarie University.
  10. McNeill, J.D., 1990, Use of electromagnetic methods for groundwater studies, in Ward, S.H., Ed., Geotechnical and Environmental Geophysics, Vol. I: Society of j Exploration Geophysicists, Tulsa, Oklahoma, 191–218.
  11. Park, S., 1998, Fluid migration in the vadose zone from 3-D inversion of resistivity monitoring data: Geophysics, 63, 41–51.
  12. Raiche, A.P., 1992, Program Grendl - Manual prepared for AMIRA by the Mathematical Geophysics Group: CSIRO Division of Exploration and Mining.
  13. Raiche, A.P., Jupp, D.L.B., Rutter, H., and Vozoff, K., 1985, The joint use of coincident loop transient electromagnetic and Schlumberger sounding to resolve layered structures: Geophysics, 50, 1618–1627.
  14. Reid, P.D., Brown, P.L., and Huang, J.C., 1990, Geophysical delineation of groundwater seepage pathways: ANSTO Report Cl98.
  15. Street, G.J., 1992, Airborne geophysical surveys - Applications in land management: Expl. Geophys., 23, 333–338.
  16. Vozoff, K., and Jupp, D.L.B., 1975, Joint inversion of geophysical data: Geophys. J.R. Astr. Soc., 42, 977–991.
  17. Ward, S.H., 1990, Resistivity and induced polarization methods, in Ward, S.H., Ed., Geotechnical and Environmental Geophysics, Vol. I: Society of Exploration Geophysicists, Tulsa, Oklahoma, 147–189.
  18. White, P.A., 1994, Electrode arrays for measuring groundwater flow directions and velocity: Geophysics, 59, 192–201.
  19. Williams, B.G., and Pannewig, M., 1994, A reconnaissance electromagnetic induction survey of the Brukunga pyrites mine tailings dump: Report prepared for the CSIRO Minesite Rehabilitation Research Program, Division of Soils, Adelaide.
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  • Article Type: Research Article
Keyword(s): and self-potential; DC resistivity; groundwater; Minesite contamination; transient electromagnetic

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