Gold concentrations of magmatic brines and the metal budget of porphyry copper deposits

Nature

Volumn 399, Issue 6737, 1999, Pages 676-679

  Ulrich, T ^a   Gunther D ^a   Heinrich, C A ^a  

^a ETH ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

COPPER; GOLD; METAL; MOLYBDENUM;

HYDROTHERMAL DEPOSIT; HYDROTHERMAL FLUID; MAGMA CHEMISTRY; MAGMATISM; METALLOGENESIS; ORE DEPOSIT; PORPHYRY;

ARTICLE; CHEMICAL COMPOSITION; CRYSTALLIZATION; GEOLOGY; MASS SPECTROMETRY; MINING; PRIORITY JOURNAL; ROCK; VOLCANO;

EID: 0345211448     PISSN: 00280836     EISSN: None     Source Type: Journal    
DOI: 10.1038/21406     Document Type: Article

References (32)

1. Candela, P. A. Rev. Econ. Geol. 4, 203-221 (1989).
2. Cline, J. S. & Bodnar, R. J. Can economic porphyry copper mineralization be generated by a typical calc-alkaline melt? J. Geophys. Res. 96, 8113-8126 (1991).
3. Sheets, R. W., Nesbitt, B. E. & Muehlenbachs, K. Meteoric water component in magmatic fluids from porphyry copper mineralization, Babine Lake area, British Columbia. Geology 24, 1091-1094 (1996).
4. Roedder, E. Fluid Inclusions (Mineralogical Soc. of America, 1984).
5. Hedenquist, J. W. & Lowenstern, J. B. The role of magmas in the formation of hydrothermal ore deposits. Nature 370, 519-527 (1994).
6. Sheppard, S. M. F., Nielsen, R. L. & Taylor, H. P. J. Hydrogen and oxygen isotope ratios in minerals from porphyry copper deposits. Econ. Geol. 66, 515-542 (1971).
7. Sheppard, S. M. F., Nielson, R. L. & Taylor, H. P. J. Oxygen and hydrogen ratios of clay minerals from porphyry copper deposits. Econ. Geol. 64, 755-777 (1969).
8. Hemley, J. J., Cygan, G. L., Fein, J. B., Robinson, G. R. & D'Angelo, W. M. Hydrothermal ore-forming processes in the light of studies in systyems: I. Iron-copper-zinc-lead sulfide solubility relations. Econ. Geol. 87, 1-22 (1992).
9. Seward, T. M. & Barnes, H. L. in Geochemistry of Hydrothermal Ore Deposites 3rd edn (ed. Barnes, H. L.) 435-486 (Wiley, New York, 1997).
10. Taylor, S. R. & McLennan, S. M. The Centinental Crust its Competition and Evolution (Blackwell Scientific, Oxford, 1985).
11. McDonald, G. D. & Arnold, L. C. Geological and geochemical using of the Grasberg igneous complex, Irian Jaya, Indonesia, J. Geochem. Explor. 50, 143-178 (1994).
12. Ulrich, T. in Actas X Congreso de Geologia and VI Congreso Nacional de Geologia Economica 239 (Universidad de Buenas Aires, 1994).
13. Günther, D., Frischknecht, R., Heinrich, C. A. & Kahlert, H.-J. Capabilities of an argon fluoride 193nm excimer laser for laser ablation inductively accepted plasma mass spectrometry microanalysis of geological materials. J. Anal. Atom. Spectrosc. 12, 939-944 (1997).
14. Günther, D., Audétat, A., Frischknecht, R. & Heinrich, C. A. Quantitative analysis of major, minor and trace elements in fluid inclusions using laser ablotion-inductively coupled plasma-mass spectrometry (LA-ICP-MS). J. Anal. Atom. Spectrosc. 13, 263-270 (1993).
15. Günther, D. & Heinrich, C. A. Enhanced sensitivity in ICP-mass-spectrometry using helium-argon mixtures as aerosol carrier. J. Anal. Atom. Spectrosc. (submitted).
16. Meinert, L. D., Hefton, K. K., Mayes, D. & I. Geology, sunation, and fluid evolution of the big gossan Cu-Au skam, Ertsberg district, Jaya. Econ. Geol. 92, 503-534 (1997).
17. Wall V. J. Bajo de la Alumbrera (Argentina), A world class copper gold deposit. Rev. Asoc. Argentina Geol. Econ. 11, 92-93 (1997).
18. Forrestal, P. MIM Holdings Limited, financial and production results. (Nov. 98) (http://www.mimholdings. com.au) (1998).
19. Heinrich, C. A., Günther, D., Audétat, A., Ulrich, T. & R. Metal fraction between magmatic brine and vapor, and the link between and epithermal Cu-Au deposits. Geology (in the press).
20. Hemley, J. J. & Hunt, J. P. Hydrothermal ore-forming processes in the light of studies in rock-buffered systems: II. Some general geologic applications. Geol. 67, 23-43 (1992).
21. Gammons, C. H. & Williams-Jones, A. E. Chemical mobility of gold in the porphyry-epithermal environment. Econ. Geol. 92, 45-59 (1997).
22. Simon, G. Partitioning of gold between bomite and in porphyry-copper-gold deposits: A thermodynamic and experimental approach. Econ. Geol. (submitted).
23. Connors, K. A., Noble, D. C., Bussey, S. D. & Weiss, S. I. Initial gold contents of silicic volcanic rocks: Bearing on the behavior of gold in magmatic systems. Geology 21, 937-940 (1993).
24. Wallace, D. A. The precious-metals potential of the Rockley volcanics in the Lachlan fold belt. Austral. Geol. Surv. Org. Res. Newsl. 24, 17-18 (1996).
25. Sasso, A. M. & Clark, A. H. The Farallón Negro group, northwestern Argentina: Magmatic, hydrothermal and tectonic evolution and implications for Cu-Au metallogeny in the Andean back-arc. Soc. Econ. Geol. Newsl. 34, 1-18 (1998).
26. Gill, J. Orogenic Andesites and Plate Tectonics (Springer, New York, 1981).
27. Cline, J. S. in Porphyry Copper Deposits of the American Cordillera (eds Pierce, F. W. & Bolm, J. G.) 69-82 (Arizona Geological Soc., Tucson, 1995).
28. Naney, M. T. Phase equilibria of rock-forming ferromagnesian silicates in granitic systems. Am. J. Sci. 283, 993-1033 (1983).
29. Candela, P. A. & Piccoli, P. M. in Magmas, Fluids, and Ore Deposits (ed. Thompson, J. F. H.) 101-127 (Mineralogical Soc. Canada, Victoria, British Columbia, 1995).
30. Kilinc, I. A. & Burnham, C. W. Partitioning of chloride between a silicate melt and coexisting aqueous phase from 2 to 8 kilobars. Econ. Geol. 67, 231-235 (1972).
31. Nakano, T. & Urabe, T. Calculated composition of fluids released from a crystallizing granitic melt: Importance of pressure on the genesis of ore forming fluid. Geochem. J. 23, 307-319 (1989).
32. Shinohara, H. Exsolution of immiscible vapor and liquid phases from a crystallizing silicate melt: Implications for chlorine and metal transport. Geochim. Cosmochim. Acta 58, 5215-5221 (1994).