Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Geochemistry and mineralogy of Platinum-group elements in the Ransko gabbro–peridotite massif, Bohemian Massif (Czech Republic)

  • 204 Accesses

  • 11 Citations

Abstract

The Ransko gabbro–peridotite massif in Eastern Bohemia is a strongly differentiated intrusive complex of Lower Cambrian age. The complex hosts low grade Ni–Cu ores mainly developed close to the contact of olivine-rich rocks with gabbros, in troctolites and, to a much lesser extent, in both pyroxene and olivine gabbros and plagioclase-rich peridotites. The ore zone is characterized by strong serpentinization and uralitization. The total Ni + Cu locally reaches up to 4 wt%. Anomalous concentrations of platinum-group elements (PGE's) (maximum 532 ppb Pd, 182 ppb Pt, 53 ppb Rh, 15 ppb Ru, 41 ppb Ir) were detected in samples of Cu–Ni and Ni–Cu ores (maximum 2.63 wt% Ni and 2.31 wt% Cu) from the Jezírka orebody. The main ore paragenesis includes pyrrhotite, pentlandite, chalcopyrite, cubanite, pyrite, magnetite, mackinawite, valleriite, ilmenite and sphalerite. During this work, michenerite, froodite, sperrylite, gold, native bismuth, altaite, tsumoite, hessite, an unnamed Bi–Ni telluride, cobaltite–gersdorffite and galena were newly identified. The host rocks originated through partial melting of a slightly depleted mantle source with noble metals scavenged from this primitive magma prior to the development of these rocks.

This is a preview of subscription content, log in to check access.

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4a–d.
Fig. 5.
Fig. 6.
Fig. 7.
Fig. 8.
Fig. 9.
Fig. 10.
Fig. 11a–f.
Fig. 12.
Fig. 13.

References

  1. Barnes SJ, Maier WD (1999) The fractionation of Ni, Cu and the noble metals in silicate and sulfide liquids. In: Keyas RR, Lesher CM, Lightfoot PC, Farrow CEG (eds) Dynamic processes in magmatic ore deposits and their application in mineral exploration. Geol Assoc Can Short Course Vol 13:69–106

  2. Barnes SJ, Boyd R, Korneliussen A, Nilsson LP, Often M, Pedersen RB, Robins B (1988) The use of mantle normalization and metal ratios in discriminating between the effects of partial melting, crystal fractionation and sulphide segregation on platinum-group elements, gold, nickel and copper: examples from Norway. In: Prichard HM, Potts PJ, Bowles JFW, Cribb SJ (eds) Geo-platinum. Elsevier, London, pp 113–143

  3. Bernard JH (1991) Empirical types of ore mineralizations in the Bohemian Massif. Czech Geological Survey, Prague

  4. Bouška V, Jelínek E, Mísař Z, Pačesová M (1977) Geochemistry of the concentric Ransko gabbro peridotite massif (Czechoslovakia). Krystalinikum 13:7–30

  5. Bowes DR, Aftalion M (1991) U–Pb zircon isotopic evidence for early Ordovician and late Proterozoic units in the Mariánské Lázně complex, Central European Hercynides. N Jb Mineral Mh 7:315–326

  6. Boynton WV (1984) Cosmochemistry of the rare earth elements. In: Henderson P (ed) Rare earth element geochemistry, Elsevier, Amsterdam

  7. Dallmeyer RD, Urban M (1998) Variscan vs Cadomian tectonothermal activity in northwestern sectors of the Teplá-Barrandian zone, Czech Republic: constraints from 40Ar/39Ar ages. Geol Rundsch 87:94–106

  8. Dodin DA, Chernyshov NM, Yatskevich BA (2000) Platinum- metal deposits of Russia (in Russian: Platinometalnyje mestorozdenija Rossii). Nauka, Moscow

  9. Dörr W, Fiala J, Franke W, Haack U, Philippe S, Schastok J, Scheuvens D, Vejnar Z, Zulauf G (1998) Cambrian vs Variscan tectonothermal evolution within the Teplá-Barrandian: evidence from U–Pb zircon ages of syn-tectonic plutons (Bohemian Massif, Czech Republic). Acta Univ Carol Geol 42:229–230

  10. Duda J (1966) Final report and calculation of Ni–Cu ore reserves at Staré Ransko (in Czech: Závěrečná zpráva a výpočet zásob ložisek Ni–Cu rud Staré Ransko). Unpublished report, MS Geofond Praha

  11. Ewers WE, Hudson DR (1972) An interpretative study of a nickel iron sulphide ore intersection, Lunnon Shoot, Kambalda, Western Australia. Econ Geol 67:1075–1092

  12. Goldstein SL, O'Nions RK, Hamilton PJ (1984) A Sm–Nd isotopic study of atmospheric dusts and particulates from major river systems. Earth Planet Sci Lett 70:221–236

  13. Hawley JE (1965) Upside-down zoning at frood, Sudbury, Ontario. Econ Geol 60:529–575

  14. Hoffman V (1962) Geochemical processing of Ni–Cu ore from the Staré Ransko deposit (in Czech: Geochemický charakter úpravy Ni–Cu rudniny z ložiska Staré Ransko). Sbor Geol Věd Řada G 1:139–186

  15. Hoffman E, Maclean WH (1976) Phase relations of Michenerite and Merenskyite in the Pd–Bi–Te system. Econ Geol 71:1461–1468

  16. Holub M, Pokorný J (1970) Alternation of gabbros and troctolites and genesis of sulfides in the Ransko basic massif. Sbor Geol Věd LG 11:99–111

  17. Holub M, Jelínek E, Komínek E, Pluskal O Jr (1992) Genetic model of sulfide mineralization of the Ransko gabbro peridotite massif (Bohemia, Czechoslovakia). Sbor Geol Věd LG 30:7–42

  18. Hulbert LJ, Duke M, Eckstrand OR., Lydon JW, Scoates RF, Cabri LJ, Irvine TN (1988) Geological environments of platinum group elements. Open file report 1440, Geological Survey of Canada

  19. Ihaka R, Gentleman R (1996) R: A language for data analysis and graphics. J Comput Graphical Stat 5:299–344

  20. Jacobsen SB, Wasserburg GJ (1980) Sm–Nd evolution of chondrites. Earth Planet Sci Lett 50:139–155

  21. Janoušek V (2000) R an alternative to spreadsheets and special software for geochemical calculations and plotting. Geolines 10:34–35

  22. Kobza D (1980) Relationship between Zn–Cu mineralization and surrounding rocks at the Staré Ransko-Obrázek mine (in Czech: Vztah Zn–Cu zrudnění k okolním horninám na dole Staré Ransko-Obrázek). MSc Thesis, Charles University, Prague

  23. Krejčí J, Helmhacker R (1891) Explanations to the geological map of Železné hory Mts. and related areas in East Bohemia (in Czech: Vysvětlivky ke geologické mapě Železných hor a přilehlých okrsků ve východních Čechách). Archiv přírodověd Výzk Čech, Prague

  24. Kříbek B, Pouba Z, Skoček V, Waldhausrová J (2000) Neoproterozoic of the Teplá-Barrandian Unit as a part of the Cadomian orogenic belt: a review and correlation aspects. Bull Czech Geol Surv 75:175–196

  25. Liew TC, Hofmann AW (1988) Precambrian crustal components, plutonic associations, plate environment of the Hercynian Fold Belt of central Europe: indications from a Nd and Sr isotopic study. Contrib Mineral Petrol 98:129–138

  26. Lugmair GW, Marti K (1978) Lunar initial 143Nd/144Nd: differential evolution line of the lunar crust and mantle. Earth Planet Sci Lett 39:349–357

  27. Marek F (1970) Estimate of the age of the Ransko basic massif based on palaeomagnetic data (in Czech: Odhad stáří ranského bazického masívu podle paleomagnetických dat). Věst Ústřed Úst Geol 45:99–102

  28. Mísař Z (1960) Structural setting of the Ransko basic massif (in Czech: Strukturní postavení ranského bazického masívu). Věst Ústřed Úst Geol 25:379–382

  29. Mísař Z (ed) (1974) The Ransko gabbro–peridotite massif and its mineralization (Czechoslovakia). Charles University Prague

  30. Mísař Z (1979) Sulfide mineralization in the Ransko gabbro–peridotite massif, Czechoslovakia. Can Mineral 17:299–307

  31. Naldrett AJ (1989) Platinum-group element deposits. In: Cabri LJ (ed) Platinum-group elements: mineralogy, geology, recovery. CIM Special Volume 23, Ottawa, pp 197–231

  32. Naldrett AJ, Barnes SJ (1986) The fractionation of the platinum-group elements with special reference to the composition of sulphide ores. Fortsch Mineral Petrol 64:113–133

  33. Naldrett AJ, Cabri LJ (1976) Ultramafic and related mafic rocks: their classification and genesis with special reference to the concentration of nickel sulfides and platinum-group elements. Econ Geol 71:1131–1158

  34. Naldrett AJ, Duke JM (1980) Platinum metals in magmatic sulfide ores. Science 208:1417–1428

  35. Nekrasov IJ, Lennikov AM, Oktjabrskyj RA (1994) Petrology and PGE potential of ring-type alkaline-ultrabasic complexes (in Russian: Petrologija i platinonosnost kolcevych scelocno-ultraosnovnych komplexov.). Nauka, Moscow

  36. Oen IS, Burke EA, Kieft C, Westerhof AB (1971) Ni-arsedines, Ni-rich loelingite and (Fe, Co)-rich gersdorffite in Cr–Ni ores from Málaga Province, Spain. N Jb Mineral Abh 2:123–139

  37. Pašava J, Vavřín I, Frýda J, Janoušek V, Jelínek E (1999) PGE mineralization in the Ransko gabbro–peridotite massif, Bohemian Massif, Czech Republic. In: Stanley Ch et al. (eds) Mineral deposits: processes to processing, vol 1. Balkema, Rotterdam, pp 771–774

  38. Pokorný J (1969) Sulphide ore deposits in the Ransko basic massif. Sbor geo. Věd Ústř Úst Geol LG 10:111–154

  39. Richard P, Shimizu N, Allégre C J (1976) 143Nd/146Nd, a natural tracer: an application to oceanic basalts. Earth Planet Sci Lett 31:269–278

  40. Rost R (1969) Spinelides in the rocks of the basic complex in Staré Ransko, Bohemia. Acta Univers Carolinae Geol 2:153–163

  41. Šmejkal V, Pokorný J, Jarchovský T (1970) Origin of sulphur in sulphides of some igneous rocks in Czechoslovakia. Věst Ústřed Úst Geol 45:193–201

  42. Van der Veen AH, Maaskant P (1995) Chromian spinel mineralogy of the Staré Ransko gabbro–perridotite, Czech Republic, and its implications for sulfide mineralization. Miner Deposita 30:397–407

  43. Vavřín I, Frýda J (1998) Michenerite PdBiTe and froodite PdBi2 from the Cu–Ni mineralization in the Ransko Massif, Czech Republic. Mineral Petrol 63:141–146

  44. Walker RJ, Morgan JW, Horan MF, Czamanske GK, Krogstad EJ, Fedorenko VA, Kunilov VE (1994) Re–Os isotopic evidence for an enriched-mantle source for the Norilsk-type, ore-bearing intrusions, Siberia. Geochim Cosmochim Acta 58:4179–4197

  45. Watkinson DM, Mainwaring PR, Pertold Z (1978) The Cu–Zn Obrázek deposit, Czechoslovakia, a volcanogenic deposit included in the Ransko intrusive complex. Miner Deposita 13:151–163

  46. Weiss J (1962) Geological-petrographical situation of the Ransko massif (in Czech: Geologicko- petrografické poměry ranského masívu.). Sb Geol Věd Řada G 27:87–137

Download references

Acknowledgements

This study was a part of the project entitled Sources, transport and fractionation of PGEs in classical and unconventional geologic environments of the Bohemian Massif and was carried out within the framework of a Czech Grant Agency Strategic Grant no. 205/96/0147 to Jan Pašava. We thank A. Naldrett and one anonymous reviewer for their helpful reviews of the manuscript and O. Thalhammer and B. Lehmann for their careful editorial scrutiny.

Author information

Correspondence to Jan Pašava.

Additional information

Editorial handling: O. Thalhammer

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Pašava, J., Vavřín, I., Frýda, J. et al. Geochemistry and mineralogy of Platinum-group elements in the Ransko gabbro–peridotite massif, Bohemian Massif (Czech Republic). Miner Deposita 38, 298–311 (2003). https://doi.org/10.1007/s00126-002-0343-y

Download citation

Keywords

  • Bohemian Massif
  • Czech Republic
  • Gabbro–peridotite massif
  • PGEs
  • Ransko