Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-28T06:55:08.912Z Has data issue: false hasContentIssue false
  • English
  • Français

The metal-rich portions of the phase system Cu-Fe-Pd-S at 1000°C, 900°C and 725°C: implications for mineralization in the Skaergaard intrusion

Published online by Cambridge University Press:  05 July 2018

S. Karup-Møller ,
E. Makovicky  and
S.-J. Barnes
S. Karup-Møller
Affiliation:
Environment and Resources, Technical University of Denmark, Bygning 113, DK-2800 Lyngby, Denmark
E. Makovicky
Affiliation:
Department of Geography and Geology, University of Copenhagen, Ø.Voldgade 10, DK-1350 Copenhagen, Denmark
S.-J. Barnes
Affiliation:
Sciences Appliquées, Université du Québec ` Chicoutimi, 555 Boulevard Université, Chicoutimi, G7H 2B1 Canada
Get access Rights & Permissions [Opens in a new window]

Abstract

The sulphur-poor portions of the dry condensed Cu-Fe-Pd-S system were studied at 1000°C, 900°C and 725°C by synthesis in evacuated silicate glass tubes, along with textural observations and electron microprobe analyses of equilibrated reaction products. Sulphide melt coexists with Cu-Fe-Pd alloys, bornite, Fe1-xS and iss (intermediate solid solution, Cabri, 1973) and Pd4S. Compositional data were obtained for the associations bornite-alloy-melt, pyrrhotite-alloy-melt and for immiscible Cu-rich sulphide melts. Partition coefficients for all three metals were derived for the association alloy-melt. Formation of the two new Cu-Pd alloy minerals, skaergaardite and nielsenite, is discussed in terms of the present findings.

Keywords

Cu-Pd-Fe-S phase systemsulphide meltCu-Pd-Fe alloyborniteskaergaarditenielsenite
Type
Research Article
Information
Mineralogical Magazine , Volume 72 , Issue 4 , August 2008 , pp. 941 - 951
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Andersen, J.C.Ø. (2006) Postmagmatic sulfur loss in the Skaergaard Intrusion: Implications for the formation of the Platinova Reef. Lithos, 92, 198–221.CrossRefGoogle Scholar
Cabri, LJ. (1973) New data on phase relations in the Cu-Fe-S system. Economic Geology, 68, 443–454.CrossRefGoogle Scholar
Cabri, L.J., Rudashevsky, V.N., Rudashevsky, N.S., Sylvester, P.J., and Tubrett, M.N. (2004) Current developments in quantitative process mineralogy of PGE-bearing ores from different deposits. Platinumsymposium. oulu.fi/pdfs/Oral Presentations 1 A-H.pdf. Google Scholar
Karup-Moller, S. and Makovicky, E. (1999) The phase system Cu-Pd-S at 900°C, 725°C, 550°C and 400°C. Neues Jahrbuchfur Mineralogie, Monatshefte, 1999, 551–567.Google Scholar
Makovicky, E. (2002) Experimental studies of palladium containing systems and compounds. Boletin de la Sociedad Espanola de Mineralogía, 25, 5–37.Google Scholar
Makovicky, E. and Karup-Moller, S. (1993) The system Pd-Fe-S at 900°C, 725°C, 550°C and 400°C. Economic Geology, 88, 1269–1278.CrossRefGoogle Scholar
Makovicky, M., Makovicky, E. and Rose-Hansen, J. (1988) Experimental evidence on the formation and mineralogy of platinum and palladium ore deposits. Mineral Deposits within the European Community (J.Boissonnas and P.Omenetto, editors), 303–317.CrossRefGoogle Scholar
Makovicky, M., Makovicky, E., Rose-Hansen, J. and Barnes, S.J. (1995) Skaergaard intrusion in a test tube - Current results. Mineral Deposits: From Their Origin to Their Environmental Impacts. Pašava, J., Křibek, B. and Žak, K., editors. Proceedings of the Third Biennal SGA Meeting, Prague, 28—SI August 1995. Google Scholar
McDonald, A.M., Cabri, L.J., Rudashevsky, N.S., Stanley, C.J., Krestner, Yu.L., Rudashevsky, V.N. and Ross, K.C. (in press) Nielsenite, PdCu3, a new platinum-group intermetallic mineral from the Skaergaard intrusion, Greenland. Neues Jahrbuch für Mineralogie Monatshefte, (in press).Google Scholar
Morimoto, N. and Kullerud, G. (1966) Polymorphism on the Cu9S5-Cu5FeS4 join. Zeitschrift fur Kristallographie, 123, 234–235.CrossRefGoogle Scholar
Nielsen, T.D., Rasmussen, H., Rudashevsky, W.S., Kretser, Yu.L. and Rudashevsky, V.N. (2003) PGE and sulphide phases of the precious metal mineralization of the Skaergaard Intrusion. Parts 1–5. Danmarks og Gronlands Geologiske Undersogelse Rapport 2003/47, 2003/48, 2003/52, 2003/54. Google Scholar
Rudashevsky, N.S., McDonald, A.M., Cabri, L.J., Nielsen, T.F., Stanley, C.J., Kretzner, Yu.L. and Rudashevsky, V.N. (2004) Skaergaardite, PdCu, a new platinum-group intermetallic mineral from the Skaergaaard intrusion, Greenland. Mineralogical Magazine, 68, 615–632.CrossRefGoogle Scholar
Subramanian, P.R. and Laughlin, D.E. (1991) Cu-Pd (Copper-Palladium). Journal of Phase Equilibria, 12,231–243.CrossRefGoogle Scholar