1887
Volume 26, Issue 2-3
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

The White Devil gold deposit is developed within a steeply-dipping altered shear zone (predominantly chlorite schists containing stringers of magnetite) which is hosted by inter-bedded turbiditic greywackes and siltstones of the Protero-zoic Warramunga Group.

Ground magnetic, gravity, and triaxial drillhole magnetic surveys have been undertaken at the deposit to assist in the mapping of the size and extent of magnetite accumulations, ranging from magnetite stringers (2-5% magnetite) to massive magnetite ironstones (>60% magnetite), which occur within the steeply-dipping shear zone.

The extensive database of three component magnetic data (based on triaxial drillhole magnetometer readings from over 200 drillholes) has enabled a three dimensional view of the magnetic field within a complex, highly magnetic ironstone system.

© 1995 ASEG
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1995-06-01
2026-01-22

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References

  1. Avdevich, M M. and Phokin, A.PH., 1981, The determination of magnetic fields using analog modelling In Interpretation of borehole magnetic data and some special problems in magnetometry. Hjelt, S.E. and Phokin, A. Ph: Department of Geophysics, University of OULU, Report No 1.
  2. Bosum, W., Eberle, D. and Rehli, H.J., 1988, A gyro-oriented 3-component borehole magnetometer for mineral prospecting, with examples of its application: Geophysical Prospecting, 36, 933-961.
  3. Clark, D.A. Saul, S.J. and Emerson, D.W., 1986, Magnetic and gravity anomalies of a triaxial ellipsoid: Exploration Geophysics, 17, 189-200.
  4. Clark, D.A.and Tonkin, C, 1987, Magnetic properties of Ironstones and host rocks from the Tennant Creek area: CSIRO Report 1691R (unpublished).
  5. Clark, D.A., French, D.H., Lackie, M.L, and Schmidt, P.W., 1992, Rock magnetism and magnetic petrology applied to geological intrepretation of magnetic surveys. AMIRA restricted report 303R, AMIRA P96C (unpublished).
  6. Edwards, G.C., Booth, S.A., Cozens, G.J., 1990, White Devil gold deposit in Geology of the Mineral Deposits of Australia and Papua New Guinea. (Ed. F.E. Hughes), pp. 849-855: The Australasian Institute of Mining and Metallurgy.
  7. Emerson, D.W. 1994, Electrical properties of Magnetite-rich ores and rocks: AMIRA p416 Quarterly Report, May 1994.
  8. Eskola, L. and Tervo, T., 1980, Solving the magnetostatic field problem (a case of high susceptibility) by means of the method of subsections: Geoexploration, 18, 79-95.
  9. Eskola, L. 1980, Numerical modelling of magnetic anomalies by means of the method of sub-areas, in Interpretation of borehole magnetic data and some special problems in magnetometry. Hjelt, S.E., and Phokin, A.Ph; Department of Geophysics, University of OULU. Report No. 1.
  10. Farrar, L. J. D. (1979, Some comments on detailed magnetic investigations of ellipsoidal bodies at Tennant Creek: Exploration Geophysics, 10, 26-33.
  11. Hattula, A., 1986, Magnetic 3-component borehole measurements in Finland in Killeen, P.G., Ed., Borehole Geophysics for Mining and Geotechnical Applications: Geological Survey of Canada, paper 85-27, 237-250.
  12. Hoschke, T., 1985, A new drillhole magnetometer: Preliminary results from the Tennant Creek area: Exploration Geophysics, 16, 365-374.
  13. Hoschke, T, 1988, The use of a downhole magnetometer in gold exploration at Tennant Creek in Bicentennial Gold 1988. Extended Abstracts Poster Programme, A.D.T. Goode, E.L Smyth, W.D. Birch and LI Bosma, Eds.: Geol. Soc. Aust. Abstr 23, 2, 539-541.
  14. Hoschke.T., 1991, Geophysical discovery and evaluation of the West Peko Copper-Gold deposit, Tennant Creek: Exploration Geophysics 22, 484495.
  15. Le Messurier, P., Williams, B.T. and Blake, D.H., 1990, Tennant Creek Inlier -regional geology and mineralisation In Geology of the Mineral Deposits of Australia and Papua New Guinea, F.E. Hughes, Ed.: AUSIMM, 829-838
  16. Levanto, A., 1959, A 3-component magnetometer for small drillholes and its use in ore prospecting: Geophysical Prospecting, 7, 183-195.
  17. Levanto, A.E., 1963, On magnetic measurements in drillholes: Geoexploration, 1, 8-20.
  18. Morrison, R.S; Donnellan, N and Hussey, K.J, 1992, Regional Geology of Tennant Creek, NT, Australia: GAC/MAC meeting, Wolfville, Nova Scotia, Canada, May 1992, Abstracts 17-.A80.
  19. Scott, J.H. and Oolson, G.G., 1986, Development of a 3-component borehole magnetometer probe with gyroscopic orientation in Killeen, P.G. Ed. Borehole Geophysics for mining and Geotechnical Applications: Geological Survey of Canada, Paper 85-27, 251-259.
  20. Silva, J.B.C. and Hohmann, G.W., 1981, Interpretation of 3-component borehole magnetometer data: Geophysics, 46, 1721-1731
  21. Wedekind, M.R; Large, R.R; and Williams, B.T, 1989, Controls on high grade gold mineralisation at Tennant Creek, Northern Territory, Australia: Econ Geol, 6, 168-179.
  22. Zaw, K; Huston, D.L; Large, R.R; Mernagh, T; and Ryan, C.G, 1994, Geothermometry and compositional variation of fluid inclusions from the Tennant Creek Gold-Copper Deposits, Northern Territory: Implications for exploration of Auriferous Ironstones in Hallenstein, C. Ed., Australian Mining looks North, Challenges and Choices: 1994 Annual Conference AUSIMM, 185-188
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  • Article Type: Research Article
Keyword(s): 3-component magnetics; Cu-Au; gravity; magnetics; petro-physics; Tennant Creek; triaxial drillhole magnetometer; White Devil

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