Metal fractionation between magmatic brine and vapor, determined by microanalysis of fluid inclusions

Geology

Volumn 27, Issue 8, 1999, Pages 755-758

  Heinrich, C A ^a   Gunther D ^a   Audetat A ^a   Ulrich, T ^a   Frischknecht, R ^a  

^a ETH ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

BRINES; FRACTIONATION; LASER ABLATION; MASS SPECTROMETRY; MICROANALYSIS; PHASE SEPARATION; PLASMA DIAGNOSTICS; TRACE ELEMENTS;

LASER-ABLATION INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY; MAGMATIC BRINE;

ORE DEPOSIT GEOLOGY;

FLUID INCLUSION; FRACTIONATION; METAL; MINERALIZATION;

EID: 84874995597     PISSN: 00917613     EISSN: None     Source Type: Journal    
DOI: 10.1130/0091-7613(1999)027<0755:MFBMBA>2.3.CO;2     Document Type: Article

References (28)

1. Audétat, A., Günther, D., and Heinrich, C. A., 1998, Formation of a magmatic-hydrothermal ore deposit: Insights with LA-ICP-MS analysis of fluid inclusions: Science, v. 279, p. 2091-2094.
2. Benning, L. G., and Seward, T. M., 1996, Hydrosulfide complexing of gold(I) in hydrothermal solutions from 150-500°C and 500 to 1500 bars: Geochimica et Cosmochimica Acta, v. 60, p. 1849-1872.
3. Berger, B. R., and Henley, R. W., 1989, Advances in the understanding of epithermal gold-silver deposits, with special references to the Western United States, in Keays, Reid R., et al., eds., The geology of gold deposits; the perspective in 1998: Economic Geology Monograph 6, p. 405-423.
4. Bodnar, R. J., 1995, Fluid-inclusion evidence for a magmatic source for metals in porphyry copper deposits, in Thompson, J. F. H., ed., Magmas, fluids and ore deposits: Mineralogical Association of Canada Short Course Series, v. 23, p. 139-152.
5. 2O-NaCl to 1000°C and 1500 bars: Geochimica et Cosmochimica Acta, v. 49, p. 1861-1873.
6. Burnham, C. W., and Ohmoto, H., 1980, Late-stage processes of felsic magmatism, in Ishihara, S., and Takenouchi, S., eds., Granitic magmatism and related mineralization: Mining Geology Japan Special Issue 8, p. 1-13.
7. Cline, J. S., Hofstra, A. H., Landis, G. P., and Rye, R. O., 1997, Ore fluids at the Getchell Carlin type gold deposit, north-central Nevada: Society of Economic Geologists Guidebook Series, v. 28, p. 155-166.
8. Damman, A. R., Kras, M. S., Touret, L. R. J., Rieffe, C. E., Kramer, A. L. M., Vis, D. R., and Pintea, I., 1996, PIXE and SEM analyses of fluid inclusions in quartz crystals from the K-alteration zone of the Rosia Poieni porphyry-Cu deposit, Apuseni Mountains, Romania: European Journal of Mineralogy, v. 8, p. 1081-1096.
9. Dilles, J. H., and Einaudi, M. T., 1992, Wall-rock alteration and hydrothermal flow paths about the Ann-Mason porphyry copper deposit, Nevada -A 6 km vertical reconstruction: Economic Geology, v. 87, p. 1963-2001.
10. Drummond, S. E., and Ohmoto, H., 1985, Chemical evolution and mineral deposition in boiling hydrothermal systems: Economic Geology, v. 80, p. 126-147.
11. Eadington, P. J., 1983, A fluid inclusion investigation of ore formation in a tin mineralized granite, New England, New South Wales: Economic Geology, v. 78, p. 1204-1221.
12. Frank, M. R., Candela, P. A., and Piccoli, P. M., 1998, Estimated copper concentrations in magmatic vapor and brine in a sulfur-bearing brine-vapor-haplogranitic melt-intermediate solid solution-pyrrhotite system at 800°C and 100 MPa: Geological Society of America Abstracts with Programs, v. 30, no. 7, p. A 371.
13. Günther, D., Audétat, A., Frischknecht, R., and Heinrich, C. A., 1998, Quantitative analysis of major, minor and trace elements in fluid inclusions using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS): Journal of Analytical Atomic Spectroscopy, v. 13, p. 263-270.
14. Hedenquist, J. W., and Lowenstern, J. B., 1994, The role of magmas in the formation of hydrothermal ore deposits: Nature, v. 370, p. 519-527.
15. Hedenquist, J. W., Arribas, A., and Reynolds, T. J., 1998, Evolution of an intrusion-centered hydrothermal system: Far Southeast-Lepanto porphyry Cu-Au deposits, Philippines: Economic Geology, v. 93, p. 373-404.
16. Heinrich, C. A., Ryan, C. G., Mernagh, T. P., and Eadington, P. J., 1992, Segregation of ore metals between magmatic brine and vapor: A fluid inclusion study using PIXE microanalysis: Economic Geology, v. 87, p. 1566-1583.
17. Hemley, J. J., Cygan, G. L., Fein, J. B., Robinson, G. R., and D'Angelo, W. M., 1992, Hydrothermal ore-forming processes in the light of studies in rock-buffered systems: I. Iron-copper-zinc-lead sulfide solubility relations: Economic Geology, v. 87, p. 1-22.
18. John, D. A., and Ballantyne, G. H., 1998, Geology and ore deposits of the Oquirrh and Wasatch Mountains, Utah: Society of Economic Geologists Guidebook Series, v. 29, 256 p.
19. Lowenstern, J. B., Mahood, G. A., Rivers, M. L., and Sutton, S. R., 1991, Evidence for extreme partitioning of copper into magmatic vapour phase: Science, v. 252, p. 1405-1408.
20. McDonald, G. D., and Arnold, L. C., 1994, Geological and geochemical zoning of the Grasberg igneous complex, Irian Jaya, Indonesia: Journal of Geochemical Exploration, v. 50, p. 143-178.
21. Mountain, B. W., and Seward, T. M., 1999, The hydrosulphide/sulphide complexes of copper(I): Experimental determination of stoichiometry and stability at 22°C and reassessment of high temperature data: Geochimica et Cosmochimica Acta (in press).
22. Petrov, P. P., 1985, Fluid inclusions in natural hydrothermal quartz genetically connected with cracks: Comptes Rendus de l'Académie Bulgare des Sciences, v. 38, p. 215-218.
23. Rye, R. O., 1993, The evolution of magmatic fluids in the epithermal environment: The stable isotope perspective: Economic Geology, v. 88, p. 733-753.
24. Sawkins, F. J., and Scherkenbach, D. A., 1981, High copper content of fluid inclusions in quartz from northern Sonora: Implications for ore-genesis theory: Geology, v. 9, p. 37-40.
25. Shinohara, H., and Hedenquist, J. W., 1997, Constraints on magma degassing beneath the Far Southeast porphyry Cu-Au deposit, Philippines: Journal of Petrology, v. 38, p. 1741-1752.
26. Tischendorf, G., and Förster, H.-J., 1990, Acid magmatism and related metallogenesis in the Erzgebirge: Geological Journal, v. 25, p. 443-454.
27. Ulrich, T. Günther, D., and Heinrich, C. A., 1999, Gold concentrations of magmatic brines and the metal budget of porphyry copper deposits: Nature (in press).
28. Wahrenberger, C., Seward, T. M., Dietrich, V., and Moor, C., 1999, Volatile trace element transport in high temperature magmatic gases from Kudriavy volcano (Ituruo, Kurile Islands, Russia): Journal of Volcanology and Geothermal Research (in press).