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Tungsten-bearing rutile from the Kori Kollo gold mine, Bolivia

Published online by Cambridge University Press:  05 July 2018

C. M. Rice ,
K. E. Darke ,
J. W. Still  and
E. E. Lachowski
C. M. Rice
Affiliation:
Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, Scotland
K. E. Darke
Affiliation:
Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, Scotland
J. W. Still
Affiliation:
Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, Scotland
E. E. Lachowski
Affiliation:
Department of Chemistry, University of Aberdeen, Aberdeen, Scotland
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Abstract

W-bearing rutile formed during alteration of jarosite by resurgent hydrothermal fluids in the oxide zone of the Kori Kollo gold deposit. The rutile shows sector zoning in basal sections and well developed multiple growth zones, both defined in backscatter electron images by variations in the W content. The maximum WO3 content is 5.3 wt.% and W substitutes for Ti with double substitution of Fe to maintain charge balance. The causes of multiple growth bands are considered to be changes in externally controlled variables occurring in a shallow hydrothermal system. Whereas Ti is probably leached from biotite in dacitic rocks, the W is introduced by hydrothermal fluids.

Keywords

tungstenrutilejarositegold depositsBolivia
Type
Research Article
Information
Mineralogical Magazine , Volume 62 , Issue 3 , June 1998 , pp. 421 - 429
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1998

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References

Allegre, C.J., Provost, A. and Jaupart, C. (1981) Oscillatory zoning: A pathological case of crystal growth. Nature, 294, 223–8.CrossRefGoogle Scholar
Blackerby, B.A. (1968) Convolute zoning of plagioclase phenocrysts in Miocene volcanics from the western Santa Monica Mountains, California. Amer. Mineral., 53, 954–62.Google Scholar
Bouch, J.E., Hole, M.J. and Trewin, N.H. (1997) Rare earth and high field strength element partitioning behaviour in diagenetically precipitated titanites. Neues Jahrb. Mineral. Mh., 3–21.Google Scholar
Columba, M.C. and Cunningham, C.G. (1993 ) Geological model for the mineral deposits of the La Joya district, Oruro, Bolivia. Econ. Geol., 88, 701–8.CrossRefGoogle Scholar
Darke, K.E. (1997) Supergene mineralisation in goldrich Bolivian polymetallic vein deposits. PhD thesis, University of Aberdeen.Google Scholar
Deer, W.A., Howie, R.A. and Zussman, J. (1992) An Introduction to Rock-forming Minerals. Longmans Scientific & Technical, 696 pp.Google Scholar
Downes, M.J. (1974) Sector and oscillatory zoning in calcic augites from Mt. Etna, Sicily. Contrib. Mineral. Petrol., 47, 187–96.CrossRefGoogle Scholar
Dowty, E. (1976) Crystal structure and crystal growth II: Sector zoning in minerals. Amer. Mineral., 61, 460–9.Google Scholar
Graham, J. and Morris, R.C. (1973) Tungsten- and antimony-substituted rutile. Mineral. Mag., 39, 470–3.CrossRefGoogle Scholar
Haase, C.S., Chadam, J., Feinn, D. and Ortoleva, P. (1980) Oscillatory zoning in plagioclase feldspar, Science, 209, 272–4.CrossRefGoogle ScholarPubMed
Harris, D.C. (1986) Mineralogy and Geochemistry of the main Hemlo Gold Deposit, Hemlo, Ontario, Canada. Proceedings of Gold 1986 Symposium, Toronto, 297–310.Google Scholar
Halls, C. (1987) A mechanistic approach to the paragenetic interpretation of mineral lodes in Cornwall. Proc. Ussher Society, 6, 548–54.Google Scholar
Kouchi, A., Sugawara, Y., Kashima, K. and Sunagawa, I. (1983) Laboratory growth of sector zoned clinopyroxenes in the system Ca Mg Si2O6 – Ca Ti Al2O6. Contrib. Mineral. Petrol., 83, 177–84.CrossRefGoogle Scholar
Larsen, L.M. (1981) Sector zoned aegerine from the Ilimaussaq alkaline intrusion, South Greenland. Contrib. Mineral. Petrol., 76, 285–91.CrossRefGoogle Scholar
Loomis, T.P. (1982) Numerical simulation of crystallisation processes of plagioclase in complex melts: the origin of major and oscillatory zoning in plagioclase. Contrib. Mineral. Petrol., 81, 219–29.CrossRefGoogle Scholar
Ludington, S., Orris, G.J., Cox, D.P., Long, K.R. and Asher-Bolinder, S. (1992) Mineral deposit models. U.S.G.S Bulletin 1975, Geology and mineral resou rces of the Altiplano and Cordillera Occidental, Bolivia,63–90.Google Scholar
Mackenzie, W.S., Donaldson, C.H. and Guilford, C. (1982) Atlas of Igneous Rocks and their Textures. Longman. 148 pp.Google Scholar
Michailidis, K.M. (1997) An EPMA and SEM study of niobian-tungstenian rutile from the Fanos aplitic granite, Central Macedonia, Northern Greece. Neues Jahrb. Mineral. Mh., 549–63.Google Scholar
Murad, E., Cashion, J.D., Noble, C.J. and Pilbrow, J.R. (1995) The chemical state of Fe in rutile from an albitite in Norway. Mineral. Mag., 59, 557–60.CrossRefGoogle Scholar
Nakamura, Y. (1973) Origin of sector zoning in igneous clinopyroxenes. Amer. Mineral., 58, 986–90.Google Scholar
Ortoleva, P., Merino, E., Moore, C. and Chadam, J. (1987) Geochemical self-organisation I: Reactiontransport feedbacks and modelling approach. Amer. J. Sci., 287, 979–1007.CrossRefGoogle Scholar
Paterson, B.A., Stephens, W.E. and Heard, D.A. (1989) Zoning in granitoid accessory minerals as revealed by back scattered electron imagery. Mineral. Mag., 53, 55–61.CrossRefGoogle Scholar
Redwood, S.D. (1986) Epithermal precious and base metal mineralisation and related magmatism on the northern Altiplano, Bolivia, PhD thesis, Aberdeen University.Google Scholar
Reeder, R.J. and Paquette, J. (1989) Sector zoning in natural and synthetic calcites. Sed. Geol., 65, 239–47.CrossRefGoogle Scholar
Reeder, R.J., Fagioli, R.O. and Myers, W.J. (1990) Oscillatory zoning of Mn in solution-grown calcite crystals. Earth Sci. Rev., 29, 39–46.CrossRefGoogle Scholar
Rumble, D. III (1976) In: Oxide Minerals(Rumble, D. III, ed). Min. Soc. of America, Reviews in Mineralogy, 3, R1–R24.CrossRefGoogle Scholar
Smith, D.C. and Perseil, E.A. (1997) Sb-rich rutile in the manganese concentrations at St Marcel-Praborna, Aosta Valley, Italy: petrology and crystal-chemistry. Mineral. Mag., 61, 655–69.CrossRefGoogle Scholar
Tilley, R.J.D. (1987) Defect Crystal Chemistry and its Applications. Blackie. 236 pp.Google Scholar
Vlassopoulos, D., Rossman, G.R. and Haggerty, S.E. (1993) Coupled substitution of H and minor elements in rutile and the implications of high OH contents in Nb- and Cr-rich rutile from the upper mantle. Amer. Mineral., 78, 1181–91.Google Scholar
Watson, E.B. and Liang, Y. (1995) A simple model for sector zoning in slowly grown crystals: Implications for growth rate and lattice diffusion, with emphasis on accessory minerals in crustal rocks. Amer. Mineral., 80, 1179–87.CrossRefGoogle Scholar
Wittke, J.P. (1967) Solubility of iron in TiO2 (Rutile) J. Amer. Ceram. Soc., 50, 586–8.CrossRefGoogle Scholar
Yardley, B.W.D., Rochelle, C.A., Barnicoat, A.C. and Lloyd, G.E. (1991) Oscillatory zoning in metamorphic minerals: an indicator of infiltration metasomatism. Mineral. Mag., 55, 357–65.CrossRefGoogle Scholar