Mineralogy and Petrology

, 94:195 | Cite as

Chemical composition of tourmaline from the Asarcık Pb–Zn–Cu ± U deposit, Şebinkarahisar, Turkey

  • F. YavuzEmail author
  • Y. Fuchs
  • N. Karakaya
  • M. Ç. Karakaya
Original Paper


Abundant tourmaline, commonly as rosettes up to 1.5 cm in diameter, is present in the Upper Cretaceous Asarcık granitoid (Şebinkarahisar), Northeastern Turkey. The tourmalines also occur in quartz–tourmaline veins up to 4 m thick that cut the Asarcık granitoid. This granitoid was emplaced in the eastern Pontide Metallogenic Belt, where accompanying tourmalines are found in close association with a vein-type, uranium-bearing Pb–Zn–Cu deposit. Tourmaline crystals are generally optically zoned from core to rim with a bluish green core. Electron-microprobe studies show that tourmalines from the Asarcık granitoid and quartz–tourmaline veins display mainly dravite–schorl solid solutions with a tendency to schorl compositions. The tourmaline from the Asarcık granitoid has Fe/(Fe + Mg) ratios from 0.28 to 0.69 (mean = 0.52) and Na/(Na + Ca) ratios from 0.57 to 0.93 (mean = 0.76). In contrast, tourmaline in the quartz–tourmaline veins has Fe/(Fe + Mg) ratio from 0.14 to 0.92 (mean = 0.59) and Na/(Na + Ca) ratio from 0.78 to 1.00 (mean = 0.96). Tourmaline in the veins has a more alkali-deficient trend than that in the granitoid. Substitution mechanisms for the chemical evolution of tourmalines at Asarcık are the MgFe−1, (Fe2+Fe3+)(MgAl)−1, □Al(NaR)−1, AlOR2+ −1(OH)−1, □Al2ONa−1R2+ −2(OH)−1, Ca0.50.5Na−1, CaMg2−1Al−2, CaMgO□−1Al−1(OH)−1, CaMg3OH□−1Al−3O−1, CaMgNa−1Al−1, CaONa(OH)−1, CaMg2OHNa−1Al−2O−1, CaMg2−1Al−2, and CaMg3OH□−1Al−3O−1 exchange vectors. Chemical zoning in the tourmalines is consistent with these substitutions. Stoichiometric calculations of electron-microprobe data in the Asarcık granitoid suggest a relatively oxidizing environment during tourmaline crystallization.


Tourmaline Magmatic Rock Massive Sulfide North Anatolian Fault Exchange Vector 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank an anonymous referee for advice on the manuscript and the Chief Editor Johann G. Raith for his careful reading and editorial handling. We are very grateful to referee John F. Slack for his constructive comments and suggestions that greatly improved the manuscript.


  1. Ayan Z (1991) Şebinkarahisarın (Giresun) kuzeybatısındaki Pb-Zn-Cu cevherleşmelerinin mineralojik-jeokimyasal incelenmesi ve kökensel yorumu. , Doktora Tezi. Dokuz Eylül Üniversitesi, Izmir, p 185Google Scholar
  2. Ayan Z, Yılmaz T (1986) Giresun-Şebinkarahisar-Asarcık Pb-Zn damarının (yatağının) maden jeolojisi raporu. MTA, Ankara Derleme Raporu No: 7997 (Yayınlanmamış)Google Scholar
  3. Ayan Z, Dora OÖ (1995) Mineralogical study of the vein type lead and zinc deposits at the northwest of Şebinkarahisar (Giresun). In: Erler A, Ercan T, Bingöl E, Örçen S (eds) Proceeding of International Symposium on the Geology of the Black Sea Region, General Directorate of Mineral Research and Exploration and Chamber of Geological Engineers, Ankara, Turkey, pp 219–225Google Scholar
  4. Béziat D, Bourges F, Debat P, Fuchs Y, Lompo M, Martin F, Nikiéma S, Tollon F (1999) The Guibaré and Fété Kolé gold-bearing tourmaline-quartz veins in the Birimian greenstone belts of Burkina Faso. Can Mineral 37:575–591Google Scholar
  5. Bosi F, Lucchesi S (2004) Crystal chemistry of the schorl-dravite series. Eur J Mineral 16:335–344CrossRefGoogle Scholar
  6. Bosi F, Lucchesi S (2007) Crystal chemical relationships in the tourmaline group: Structural constraints on chemical variability. Am Mineral 92:1054–1063CrossRefGoogle Scholar
  7. Bosi F, Lucchesi S, Reznitskii L (2004) Crystal chemistry of the dravite-chromdravite series. Eur J Mineral 16:345–352CrossRefGoogle Scholar
  8. Buriánek D, Novák M (2007) Compositional evolution and substitutions in disseminated and nodular tourmaline from leucocratic granites: Examples from the Bohemian Massif, Czech Republic. Lithos 95:148–164CrossRefGoogle Scholar
  9. Burt DM (1989) Vector representation of tourmaline compositions. Am Mineral 74:826–839Google Scholar
  10. Çalapkulu F (1982) Asarcık (Şebinkarahisar-Giresun) uranyum-kurşun-çinko-bakır cevherleşmesinin incelenmesi. Ege Üniversitesi Yerbilimleri Fakültesi, Izmir, p 106 Doçentlik TeziGoogle Scholar
  11. Deksissa DJ, Koeberl C (2002) Geochemistry and petrography of gold-quartz–tourmaline veins of the Okote area, southern Ethiopia: implications for gold exploration. Mineral Petrol 75:101–122CrossRefGoogle Scholar
  12. Dyar MD, Taylor ME, Lutz TM, Francis CA, Guidotti CV, Wise M (1998) Inclusive chemical characterization of tourmaline: Mössbauer study of Fe valence and site occupancy. Am Mineral 83:848–864Google Scholar
  13. Ethier VG, Campbell FA (1977) Tourmaline concentrations in Proterozoic sediments of the southern Cordillera of Canada and their economic significance. Can J Earth Sci 14:2348–2363Google Scholar
  14. Foit FF, Rosenberg PE (1977) Coupled substitution in the tourmaline group. Contrib Mineral Petrol 62:109–127CrossRefGoogle Scholar
  15. Fuchs Y, Maury R (1995) Borosilicate alteration associated with U–Mo–Zn and Ag–Au–Zn deposits in volcanic rocks. Mineral Deposita 30:449–459CrossRefGoogle Scholar
  16. Fuchs Y, Lagache M, Linares J (1998) Fe-tourmaline synthesis under different T and fO2 conditions. Am Mineral 83:525–534Google Scholar
  17. Gallagher V (1988) Coupled substitutions in schorl-dravite tourmaline: New evidence from SE Ireland. Mineral Mag 52:637–650CrossRefGoogle Scholar
  18. Gaweda A, Pieczka A, Kraczka J (2002) Tourmalines from the western Tatra Mountains (W-Carpathians, S-Poland): Their characteristics and petrogenetic importance. Eur J Mineral 14:943–955CrossRefGoogle Scholar
  19. Gökçe A, Bozkaya G (2003) Fluid-inclusion and stable-isotope characteristics of the Inler Yaylasi lead-zinc deposits, northern Turkey. Int Geol Rev 45:1044–1054CrossRefGoogle Scholar
  20. Griffin WL, Slack JF, Ramsden AR, Win TT, Ryan CG (1996) Trace elements in tourmalines from massive sulfide deposits and tourmalinites: Geochemical controls and exploration applications. Econ Geol 91:657–675CrossRefGoogle Scholar
  21. Hawthorne FC (1996) Structural mechanisms for light-element variations in tourmaline. Can Mineral 34:123–132Google Scholar
  22. Hawthorne FC, Henry DJ (1999) Classification of the minerals of the tourmaline group. Eur J Mineral 11:201–215Google Scholar
  23. Henry DJ, Guidotti CV (1985) Tourmaline as a petrogenetic indicator mineral: An example from the staurolite-grade metapelites of NW Maine. Am Mineral 70:1–15Google Scholar
  24. Henry DJ, Dutrow BL (1990) Ca substitution in Li-poor aluminous tourmaline. Can Mineral 28:111–124Google Scholar
  25. Henry DJ, Dutrow BL (1996) Metamorphic tourmaline and its petrologic applications. In: Grew ES, Anovitz LM (eds) Boron: Mineralogy, Petrology and Geochemistry, Rev Mineral 33:503–557Google Scholar
  26. Ilbeyli N (2008) Geochemical characteristics of the Sebinkarahisar granitoids in the eastern Pontides, northeast Turkey: Petrogenesis and tectonic implications. Int Geol Rev 50:563–582CrossRefGoogle Scholar
  27. Jiang S-Y, Palmer MR, Slack JF, Shaw DR (1998) Paragenesis and chemistry of multistage tourmaline formation in the Sullivan Pb–Zn–Ag deposit, British Columbia. Econ Geol 93:47–67Google Scholar
  28. Karakaya N, Karakaya MÇ (2001a) Hydrothermal alteration of the Saplica volcanic rocks, Sebinkarahisar, Turkey. Int Geol Rev 43:953–962Google Scholar
  29. Karakaya N, Karakaya MÇ (2001b) Şaplıca (Şebinkarahisar, Giresun) volkanitlerinin hidrotermal alterasyon türlerinin mineralojik ve jeokimyasal özellikleri. Türkiye Jeol Bül 44:75–89Google Scholar
  30. Karakaya N, Karakaya MÇ, Nalbantçılar MT, Yavuz F (2007) Relation between spring-water chemistry and hydrothermal alteration in the Şaplıca volcanic rocks, Şebinkarahisar (Giresun, Turkey). J Geochem Exp 93:35–46CrossRefGoogle Scholar
  31. London D (1999) Stability of tourmaline in peraluminous granite systems: the boron cycle from anatexis to hydrothermal aureoles. Eur J Mineral 11:253–262Google Scholar
  32. London D, Manning DAC (1995) Chemical variation and significance of tourmaline from southwest England. Econ Geol 90:495–519Google Scholar
  33. Lynch G, Ortega J (1997) Hydrothermal alteration and tourmaline-albite equilibria at the Coxheath porphyry Cu–Mo–Au deposit, Nova Scotia. Can Mineral 35:79–94Google Scholar
  34. Medaris LG, Fournelle JH, Henry DJ (2003) Tourmaline-bearing quartz veins in the Baraboo Quartzite, Wisconsin: Occurrence and significance of foitite and “oxy-foitite”. Can Mineral 41:749–758CrossRefGoogle Scholar
  35. Mlynarczyk MSJ, Williams-Jones AE (2006) Zoned tourmaline associated with cassiterite: Implications for fluid evolution and tin mineralization in the San Rafael Sn-Cu deposit, southeastern Peru. Can Mineral 44:347–365CrossRefGoogle Scholar
  36. Muller WK (1959) Giresun vilayeti Şebinkarahisar kuzeyindeki Eğribel, Asarcık, Çatak anomalilerinin mesaha ve etüdü ile Şebinkarahisar kuzeyğusundaki Güdül deresinde bulunan peşblend zuhuru hakkında düşünceler. MTA Radyoaktif Mineraller Dairesi, Ankara, p 14 Rapor No. 89Google Scholar
  37. Neiva AMR, Silva MMVG, Gomes MEP (2007) Crystal chemistry of tourmaline from Variscan granites, associated tin-tungsten- and gold deposits, and associated metamorphic and metasomatic rocks from northern Portugal. Neues Jb Miner Abh 184:45–76CrossRefGoogle Scholar
  38. Okay AI, Şahintürk Ö (1997) Geology of the Eastern Pontides. In: Robinson AG (ed) Regional and petroleum geology of the Black Sea and surrounding region, AAPG Mem 68:291–311Google Scholar
  39. Okay AI, Tüysüz O (1999) Tethyan sutures of northern Turkey. In: Durand B, Jolivet L, Horvath F, Seranne M (eds) The Mediterranean basins: Tertiary extension within the Alpine Orogen, Geol Soc Lond 156:475–515, Special PublicationGoogle Scholar
  40. Oyman T, Dyar MD (2007) Chemical substitutions in oxidized tourmaline in granite-related mineralized hydrothermal systems, western Turkey. Can Mineral 45:1397–1413CrossRefGoogle Scholar
  41. Oyman T, Delaloye M, Pişkin Ö, Çalapkulu F (1995) Petrochemical and K-Ar radiometric investigations of granitoids from Şebinkarahisar area (Giresun-Turkey). In: Pişkin Ö, Ergün M, Savaşçın MY, Tarcan G (eds) International Earth Sciences Colloquium on the Aegean Region, İzmir-Güllük, Turkey, pp 429–439Google Scholar
  42. Pirajno F, Smithies RH (1992) The FeO/(FeO+MgO) ratio of tourmaline: A useful indicator of spatial variations in granite-related hydrothermal mineral deposits. J Geochem Expl 42:371–381CrossRefGoogle Scholar
  43. Pivec E, Štempork M, Novák M, Lang JK (1998) Tourmaline as a late-magmatic or post-magmatic mineral in granites of the Czech part of the Krušne Hory-Erzgebirge batholith and its contact zone. J Czech Geol Soc 43:17–23Google Scholar
  44. Plimer IR, Lees TC (1988) Tourmaline-rich rocks associated with the submarine hydrothermal Rosebery Zn-Pb-Cu-Ag-Au deposit and granites in western Tasmania, Australia. Mineral Petrol 38:81–103CrossRefGoogle Scholar
  45. Raith JG (1988) Tourmaline rocks associated with stratabound scheelite mineralization in the Austroalpine crystalline complex, Austria. Mineral Petrol 39:265–288CrossRefGoogle Scholar
  46. Raith JG, Riemer NS, Meisel T (2004) Boron metasomatism and behaviour of rare earth elements during formation of tourmaline rocks in the eastern Arunta Inlier, central Australia. Contrib Mineral Petrol 147:91–109CrossRefGoogle Scholar
  47. Reum H (1959) Asarcık-Şebinkarahisar, Şebinkarahisar, Ordu, Gümüşhane arasındaki Pantos silsilesi içinde uranyum prospeksiyonu. MTA Radyoaktif Mineraller Dairesi, Ankara, p 3 Rapor No. 92Google Scholar
  48. Robert J-L, Gourdant J-P, Linnen RL, Rouer O, Benoist P (1997) Crystal-chemical relationships between OH, F, and Na in tourmaline. In: Tourmaline 1997 International Symposium on Tourmaline. Nové Město na Moravě, Czech Republic, Abstract Volume 84–85Google Scholar
  49. Robertson AHF, Dixon EJ (1984) Introduction: Aspects of the geological evolution of the eastern Mediterranean, In: Dixon EJ, Robertson AHF (eds) The geological evolution of the Eastern Mediterranean. Geolog Soc Lond, 7:1–74, Special PublicationGoogle Scholar
  50. Rosenberg PE, Foit FF Jr (1979) Synthesis and characterization of alkali-free tourmaline. Am Mineral 64:180–186Google Scholar
  51. Sinclair WD, Richardson JM (1992) Quartz–tourmaline orbicules in the Seagull Batholith, Yukon Territory. Can Mineral 30:923–935Google Scholar
  52. Slack JF (1982) Tourmaline in Appalachian-Caledonian massive sulphide deposits and its exploration significance. Inst Mining Metall Trans 91(B):B81–B89Google Scholar
  53. Slack JF (1996) Tourmaline associations with hydrothermal ore deposits. In: Grew ES, Anovitz LM (eds) Boron: mineralogy, etrology and geochemistry, Rev Mineral 33:559–643Google Scholar
  54. Slack JF, Coad PR (1989) Multiple hydrothermal and metamorphic events in the Kidd Creek volcanogenic massive sulphide deposit, Timmins, Ontario: Evidence from tourmalines and chlorites. Can J Earth Sci 26:694–715Google Scholar
  55. Slack JF, Palmer MR, Stevens BPJ, Barnes RG (1993) Origin and significance of tourmaline-rich rocks in the Broken Hill district, Australia. Econ Geol 88:505–541Google Scholar
  56. Şengör AMC (1984) The Cimmeride Orogenic system and the plate tectonics of Eurasia. Geological Society of America, Boulder, p 81 Special Paper 195Google Scholar
  57. Şengör AMC, Altıner D, Cin A, Ustaömer T, Hsü KJ (1988) Origin and assembly of the Tethyside orogenic collage at the expense of Gondwana Land. In: Audley-Charles MG, Hallam A (eds) Gondwana and Tethys. Geol Soc Lond 37:119–181, Special PublicationGoogle Scholar
  58. Torres-Ruiz J, Pesquera A, Gil-Crespo PP, Velilla N (2003) Origin and petrogenetic implications of tourmaline-rich rocks in the Sierra Nevada (Betic Cordillera, Southeastern Spain). Chem Geol 197:55–86CrossRefGoogle Scholar
  59. Taylor BE, Slack JF (1984) Tourmalines from Appalachian–Caledonian massive sulfide deposits: Textural, chemical, and isotopic relationships. Econ Geol 79:1703–1726Google Scholar
  60. Tokel S (1995) Magmatic and geochemical evolution of the Pontide segment of the northern Tethys subduction system. In: Erler A, Ercan T, Bingöl E, Örçen S (eds) Proceeding of International Symposium on the Geology of the Black Sea Region. General Directorate of Mineral Research and Exploration and Chamber of Geological Engineers, Ankara, Turkey, pp 163–170Google Scholar
  61. Williamson BJ, Spratt J, Adams JT, Tindle AG, Stanley CJ (2000) Geochemical constraints from zoned hydrothermal tourmalines on fluid evolution and Sn mineralization: An example from fault breccias at Roche, SW England. J Petrol 41:1439–1453CrossRefGoogle Scholar
  62. Yavuz F, Çelik M, Karakaya N (1999a) Alkali-deficient fibrous tourmaline (foitite) from the Şebinkarahisar, Giresun Pb-Zn-Cu-(U) mineralization area, northern Turkey. Can Mineral 37:155–161Google Scholar
  63. Yavuz F, İskenderoğlu A, Jiang S-Y (1999b) Tourmaline composition from the Salikvan porphyry Cu-Mo deposit and vicinity, northeastern Turkey. Can Mineral 37:1007–1023Google Scholar
  64. Yavuz F, Yavuz V, Sasmaz A (2006) WinClastour—a visual basic program for tourmaline formula calculation and classification. Comp Geosci 32:1156–1168CrossRefGoogle Scholar
  65. Yılmaz M (1960) Faaliyet yılı uçak prospeksiyonu Giresun paftası Şebinkarahisar bölgesi uçakla radyoaktif aramaları nihai raporu. MTA Radyoaktif Mineraller Dairesi, Ankara, p 15 Rapor No. 205Google Scholar
  66. Yılmaz Y, Tüysüz O, Yiğitbaş E, Genç ŞC, Şengör AMC (1997) Geology and tectonic evolution of the Pontides. In: Robinson AG (ed) Regional and petroleum geology of the Black Sea and surrounding region, AAPG Memoir 68:183–226Google Scholar
  67. Yu JM, Jiang S-Y (2003) Chemical composition of tourmaline from the Yunlong tin deposit, Yunnan, China: Implications for ore genesis and mineral exploration. Mineral Petrol 77:67–84CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • F. Yavuz
    • 1
    Email author
  • Y. Fuchs
    • 2
  • N. Karakaya
    • 3
  • M. Ç. Karakaya
    • 3
  1. 1.Department of GeologyIstanbul Technical UniversityIstanbulTurkey
  2. 2.Université Marne La ValleeMarne LaValleeFrance
  3. 3.Selçuk Üniversitesi, Mühendislik Mimarlık Fakültesi, Jeoloji Mühendisliği BölümüKonyaTurkey

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