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The Teutonic Bore deposit, Western Australia: a lead isotope study of an ore and its gossan

Abstract

The Teutonic Bore deposit occurs in an Archaean greenstone belt within the Eastern Goldfields Province of the Yilgarn Block in Western Australia. The ore is hosted by basaltic rocks and consists of a conformable massive sulfide lens underlain by a thick zone of pyritic stringer ore. The zone of oxidation reaches a depth of 90–100 m with the development of secondary copper sulfides. The lead isotopic compositions of six samples of massive sulfide, three mineral separates from the ore and eight gossan samples collected from the open cut were determined by standard mass-spectrometric techniques. Four of the massive sulfide samples, all three mineral separates and seven of the eight gossan samples have lead isotopic compositions identical to each other, within experimental error. These results confirm the findings of earlier studies that the lead isotopic signature of a massive sulfide ore is transferred to its gossan, and provide additional data suggesting the usefulness of lead isotopic determinations in ore prospect evaluation. The Teutonic Bore leads plot below the average global lead evolution curves for the uranogenic isotopes 206Pb and 207Pb, suggesting that the lead in the ore contains a significant mantle component. This feature of the isotopic data is consistent with the idea of a “mantle plume” origin of the Eastern Goldfields greenstone belts.

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References

  1. Archibald, N.J., Bettenay, L.F., Binns, R.A., Groves, D.I., Gunthorpe, R.J.: The evolution of Archaean greenstone terrains, Eastern Goldfields Province, Western Australia. Precambrian Res. 6:103–132 (1978)

  2. Bickle, M.J., Chapman, H.J., Bettenay, L.F., Groves, D.I., DeLaeter, J.R.: Lead ages, reset rubidium-strontium ages and implications for the Archaean crustal evolution of the Diemals area, Central Yilgarn Block, Western Australia. Geochim. Cosmochim. Acta 47:907–914 (1983)

  3. Cannon, R.S., Pierce, A.P., Antweiler, J.C., Buck, K.L.: The data of lead isotopes geology related to problems of ore genesis. Econ. Geol. 56:1–38 (1961)

  4. Cannon, R.S., Pierce, A.P., Antweiler, J.C.: Suggested uses of lead isotopes in exploration. In: Boyle, R.W., McGerrigle, J.I., Eds., Geochemical Exploration. Can. Inst. Mining Met. Spec. Vol. 11, 457–463 (1971)

  5. Cumming, G.L., Richards, J.R.: Ore lead isotope ratios in a continuously changing Earth. Earth Planet. Sci. Lett. 28:155–171 (1975)

  6. Doe, B.R.: Lead Isotopes. Berlin, Springer, 137 p. (1970)

  7. Doe, B.R., Stacey, J.S.: The application of lead isotopes to the problems of ore genesis and ore prospect evaluation: A review. Econ. Geol. 69:757–776 (1974)

  8. Doe, B.R., Zartman, R.E.: Plumbotectonics I, The Phanerozoic. In: Barnes, H.L., Ed., Geochemistry of Hydrothermal Ore Deposits, 2nd edn. New York: John Wiley & Sons, pp. 22–70 1979

  9. Gee, R.D.: Structure and tectonic style of the Western Australian Shield. Tectonophysics 58:327–369 (1979)

  10. Greig, D.: Geology of the Teutonic Bore massive sulphide deposit, Western Australia. Australasian Inst. Min. Metall. Proc. 289:147–156 (1984)

  11. Gulson, B.L., Mizon, K.: Lead isotopes as a tool for gossan assessment in base metal exploration. J. Geochem. Explor. 11:299–320 (1979)

  12. Gulson, B.L., Korsch, M.J., Cameron, M., Vaasjoki, M., Mizon, K.J., Porritt, P.M., Carr, G.R., Kamper, C., Dean, J.A., Calvéz, J.-Y.: Lead isotope ratio measurements using the Isomass 54E in fully automatic mode. Int. J. Mass Spectrom. Ion Processes 59:125–142 (1984)

  13. Hallberg, J.A.: Geology and mineral deposits of the Leonora-Laverton area, northeastern Yilgarn Block, Western Australia. Geol. Surv. W.A. Rec. 1983/8 (1984)

  14. Kanasewich, E.R.: The interpretation of lead isotopes and their geological significance. In: Hamilton, I.E., Farquhar, R.M., Eds., Radiometric Dating for Geologists. New York: Interscience, pp. 147–223 (1968)

  15. Loveless, A.J.: Lead isotopes — a guide to major mineral deposits. Geoexploration 13:13–27 (1975)

  16. McCulloch, M.T., Compston, W.: Sm-Nd age of Kambalda and Kanowna greenstones and heterogeneity in Archaean mantle. Nature 294:322–327 (1981)

  17. McCulloch, M.T., Compston, W., Froude, D.: Sm-Nd and Rb-Sr dating of pre-greenstone gneisses, eastern Yilgarn Block, Western Australia. J. Geol. Soc. Aust. 30:149–153 (1983)

  18. Nickel, E.H.: The mineralogy and geochemistry of the weathering profile of the Teutonic Bore Cu-Pb-Zn-Ag sulphide deposit. J. Geochem. Explor. 22:239–264 (1984)

  19. Oversby, V.: Lead isotopic systematics and ages of Archaean acid intrusives in the Kalgoorlie-Norseman area, Western Australia. Geochim. Cosmochim. Acta 39:1107–1125 (1975)

  20. Stacey, J.S., Doe, B.R., Silver, L.T., Zartman, R.E.: Plumbotectonics IIA: Precambrian massive sulfide deposits. In: Geochronology and problems of the metallogeny. Moscow: Nauka, pp. 93–106 (in Russian) (1978)

  21. Stanton, R.L., Russell, R.D.: Anomalous leads and the emplacement of lead sulfide ores. Econ. Geol. 54:588–607 (1959)

  22. Turek, A., Compston, W.: Rudibium-strontium geochronology in the Kalgoorlie region. Geol. Soc. Aust. Spec. Publ. 3:72 (1971)

  23. Vaasjoki, M.: The lead isotopic composition of some Finnish galenas. Bull. Geol. Surv. Finland 316:30 p. (1981)

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Vaasjoki, M. The Teutonic Bore deposit, Western Australia: a lead isotope study of an ore and its gossan. Mineral. Deposita 20, 266–270 (1985). https://doi.org/10.1007/BF00204284

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Keywords

  • Lead Isotope
  • Mantle Plume
  • Massive Sulfide
  • Greenstone Belt
  • Lead Isotopic Composition