PLUMBIAN "ALUNITES" IN HYDROTHERMAL ALTERATION ZONES OF EPITHERMAL AND PORPHYRY TYPE MINERALIZATIONS IN W. THRACE

PDF (English)
Publiée : Jan 1, 2004
DOI : https://doi.org/10.12681/bgsg.16741
Π. Βουδούρης
Department of Mineralogy - Petrology, Faculty of Geology, University of Athens
Κ. Αρίκας
Mineralogisch - Petrographisches Institut, Universität Hamburg
Α. Κατερινόπουλος
Department of Mineralogy - Petrology, Faculty of Geology, University of Athens
Résumé

In this study a new occurrence of Pb-rich members of the alunite supergroup minerals is described. The "alunites" were traced in advanced argilic alteration zones of epithermal and porphyry type mineralizations in W. Thrace/(Greece). These "alunites" are Ca-Sr-Ba-Pb-rich phosphatessulfates and represent solid solutions between members of the alunite, woodhouseite and crandallite group minerals. The highest concentrations of PbO in the Mavrokoryfi and Melitaina alunites are 24.7% and 17.4% respectively. The plumbian phosphates-sulfates occur in the cores of the crystals and are surrounded by common K-Na-rich alunites in Mavrokoryfi and Ba-rich woodhouseite in Melitena, an indication that they were formed in a magmatic-hydrothermal environment after dissolution of apatite and feldspars by phosphate-sulphate rich solutions. The mineral-chemistry of these "alunites" can provide information regarding the genesis of the advanced argilic alteration zones in Greece, and help us in the distinction of the epithermal from deep porphyry style environments.

Article Details
  • Rubrique
  • Petrology
Creative Commons License

Ce travail est disponible sous licence Creative Commons Attribution - Pas d’Utilisation Commerciale 4.0 International.

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Téléchargements
Les données relatives au téléchargement ne sont pas encore disponibles.
Références
Βουδούρης, Π., και Αρίκας, Κ., 1998. Προχωρημένη αργιλλική εξαλλοίωση μαγματιτών περιοχής Κασσίτερων (Θράκη): Ορυκτολογία και περιβάλλον απόθεσης. Δελτ. Ελλην. Γεωλ. Εταιρ., ΧΧΧΙΙ/3, 69-78.
Βουδούρης, Π., και Σκαρπέλης, Ν., 1998. Μεταλλοφορίες επιθερμικού χρυσού - αργύρου στις περιοχές Περάματος (Θράκη) και Λήμνου. Δελτ. Ελλην. Γεωλ. Εταιρ., ΧΧΧΙΙ/3, 125-135.
Δήμου, Ε., Μιχαήλ, Κ., και Serment, R., 1994. Ορυκτολογική σύσταση της επιθερμικής-πολυμεταλλικής μεταλλοφορίας των Πεύκων Ροδόπης. Δελτίο Ελλ. Γεωλ. Εταιρ., ΧΧΧ/1, 533-550.
Μέλφος, Β., Βουδούρης, Π., Αρίκας, Κ., και Βαβελίδης, Μ., 2001. Υψηλές περιεκτικότητες ρηνίου (Re) σε μολυβδαινίτες από μεταλλοφορίες πορφυριτικού Mo-Cu στη Θράκη (ΒΑ-Ελλάδα), Δελτίο Ελλ. Γεωλ. Εταιρ., XXXIV/3, 1015-1022.
Μιχαήλ, Κ., 1993. Γεωλογία και γεωχημεία του επιθερμικού κοιτάσματος χρυσού περιοχής Κώνου. Αδημοσίευτη εσωτερική έκθεση, Ι.Γ.Μ.Ε., 75σ.
Aoki, M., Comsti, E.C., Lazo, F.B., and Matsuhisa, Y., 1993. Advanced argillic alteration and geochemistry of alunite in an evolving hydrothermal system at Baguio, Northern Luzon, Philippines. Recousce Geology, 43(3), 155-164.
Aribas, A. Jr., Cunningham, CG., Rytuba, J.J., Rye, R.O., Kelly, W.C., Podwysocki, M.H., McKee, E.H., and Tosdal, R.M., 1995. Geology, geochronology, fluid inclusions, and stable isotope geochemistry of the Rodalquilar gold alunite deposit, Spain. Econ. Geol., 90, 795-822.
Arikas, K., Michael, K., and Voudouris, P., 1990. Hydrothermale Mineralparagenesen in den tertiaeren Magmatiten am suedlichen Rhodopen-Massiv (Thrazien, Nordgriechenland). Beih. Eur. J. Miner., 1,6.
Bajnoczi, B., Molnar, F., Maeda, K., and Vennemann, T., 2001. Comparative mineralogical and genetic studies on primary alunite from epithermal systems of Hungary. In: Piestrzynski et al. (eds), Mineral Deposits at the beginning of the 21s' century, Swets and Zeitlinger Publications, 367-370.
Bajnoczi, B., Nagy, G., and Seres-Hartai, E., 2003. Woodhouseite in the advanced argillic alteration zones of some high-sulphidation epithermal deposits from the Carpatho-Pannonian region. In: D. Eliopoulos et al. (eds), Mineral Exploration and Sustainable Development, Rotterdam, Millpress Publications, 499-502.
Christofides, G., Soldatos, T., Eleftheriadis, G., and Koroneos, Α., 1998. Chemical and isotopie evidence for source contamination and crustal assimilation in the Hellenic Rhodope plutonio rocks. Acta Vulcanologica, 10, 305-318.
Del Moro, Α., Innocenti, F., Kyriakopoulos, C, Manetti, P., and Papadopoulos, P., 1988. Tertiary granitoids from Thrace (Northern Greece): Sr isotopie and petrochemical data. N. Jb. Miner. Abh., 159, 113-135.
Dill, H.G., 2001. The geology of aluminium phosphates and sulphates of the alunite group minerals: a review. Earth Sc. Rev., 53(1-2), 35-93.
Filippidis, Α., Vavelidis, M., Michailidis, K. and Evangelou, E., 1986. Re-rich and Re-poor molybdenite in the Melitene porphyritic intrusion, Rhodope massive (Greece). Fortsch. Miner, 64(1), 47.
Hayba, D.O., Bethke, P.M., Heald, P., and Foley, N.K., 1985. Geologic, mineralogie and geochemical characteristics of volcanic-hosted epithermal precious metal deposits, In: B.R. Berger, and P.M. Bethke (eds), Geology and Geochemistry of Epithermal systems. Rev. Econ. Geology, 2,129-167.
Hedenquist, J.W., Arribas, A. Jr., and Reynolds, T.J., 1998. Evolution of intrusion-centered hydrothermal systems: Far Southeast-Lepanto porphyry and epithermal Cu-Au deposits, Philippines. Econ. Geology, 93, 373-404.
Innocenti, F., Kolios, Ν., Manetti, Ο., Mazzuoli, R., Peccerilo, G., Rita, F., and Villari, L., 1984. Evolution and geodynamic significance of the Tertiary orogenic volcanism in northeastern Greece. Bull. Volcano!., 47, 25- 37.
Lerouge, C, Bailly, L., Flehoc, C, Petrunov, R., Kunov, Α., Georgieva, S., Velinov, I., and Hikov, Α., 2003. Preliminary results of a mineralogical and stable isotope study of alunite in Bulgaria-Constraints on its origin, In: D. Eliopoulos et al. (eds), Mineral Exploration and Sustainable Development, Rotterdam, Millpress Publications, 495-498.
Lescuyer, J.L., Bailly, L, Cassard, D., Lips, A.L.W., Piantone, P., and McAlister, M., 2003. Sediment-hosted gold in south-eastern Europe: the epithermal deposit of Perama, Thrace, Greece. In: D. Eliopoulos et al. (eds), Mineral Exploration and Sustainable Development, Rotterdam, Millpress Publications, 499-502.
Li G., Peacor D.R., Essene E.J., Brosnhan DR. and Beane R.E. 1992. Walthierite and huangite, two new minerals of the alunite group from the Coquimbo region, Chile. Amer. Mineral., 77,1275-1284.
Michael, C, Perdikatsis, V., Dimou, E., and Marantos, I., 1995. Hydrothermal alteration and ore deposition of precious metal deposit of Agios Demitrios, Konos area, Northern Greece. Geol. Soc. Greece, Sp. Pubi., 4, 778-782.
Pe-Piper, G., Christofides, G., and Eleftheriadis, G., 1998. Lead and neodymium isotopie composition of Tertiary igneous rocks of northeastern Greece and their regional significance. Acta Vulcanologica, 10, 255-263.
Pecskay, Z., Eleftheriadis, G., Koroneos, Α., Soldatos, T., and Christofides, G., 2003. K/Ar dating, geochemistry and evolution of the Tertiary volcanic rocks (Thrace, northeastern Greece). In: D. Eliopoulos et al. (eds), Mineral Exploration and Sustainable Development, Rotterdam, Millpress Publications, 1229-1232.
Scott, K.M., 1987. Solid solution in, and classification of, gossan-derived members of the alunite-jarosite family, northwest Queensland, Australia. Amer. Mineralogist, 72, 178-187.
Sideris, C, 1975. Investigation of specific characteristics of the plutonio and volcanic rocks of eastern Rhodope zone. Relationship between volcanism - plutonism. Habil Thesis (unpubl.), University Athens, 108pp.
Skarpelis, N., Voudouris, P., and Arikas, K., 1999. Exploration for epithermal gold in SW Thrace, Greece: New target areas. In: C.L. Stanley et al. (eds), Mineral deposits: Processes to Processing, Rotterdam, Balkema Publications, 589-592.
Stoffregen, R.E., and Alpers, C.N., 1987. Woodhouseite and svanbergite in hydrothermal ore deposits: products of apatite destruction during advanced arguite alteration. Can. Mineral., 25, 201-211.
Shawh, A.J., and Constantinides, D.C., 2001. The Sapes gold project. Bull. Geol. Soc. Greece, XXXIV/3, 1073- 1080.
Voudouris, P., 1993. Mineralogische, Mikrothermometrische und geochemische Untersuchungen an epithermalen Au-Ag-Gangmineralisationen bei Kassiteres/Sape (Nordostgriechenland), Ph.D. thesis (unpubl.), University Hamburg, 218pp.
Watanabe, Y., and Hedenquist, J.W., 2001. Mineralogical and stable isotope zonation at the surface over the El Salvador porphyry copper deposit, Chile. Econ. Geology, 96,1775-1797
Articles les plus lus par le même auteur ou la même autrice