Mineralogy and Petrology

, 94:107 | Cite as

Chemical characteristics and composition of hydrothermal biotite from the Dalli porphyry copper prospect, Arak, central province of Iran

  • F. Ayati
  • F. YavuzEmail author
  • M. Noghreyan
  • H. A. Haroni
  • R. Yavuz
Original Paper


The Dalli porphyry copper deposit is hosted by the Miocene–Pliocene subvolcanic plutons with chemical composition from diorite to granodiorite that intruded into the andesitic and dacitic volcanic rocks and variety of sedimentary sequences within the Urumieh–Dokhtar Magmatic Arc. Three main hydrothermal alteration zones including potassic, phyllic and propylitic types have been described in the volcano-plutonic rocks. Early hydrothermal alteration started with potassic style in the central part of system produced a secondary biotite–K-feldspar–magnetite assemblage and accompanies to chalcopyrite and pyrite mineralization. This paper summarizes the detailed biotite mineral chemistry from the potassic and phyllic alteration zones. The FeO, TiO2, MnO, K2O, and Na2O (wt.%) concentrations of biotite from the phyllic alteration zone are lower than biotite from the potassic alteration zone. The F and Cl (wt.%) contents of biotite from the potassic alteration zone display relatively high positive correlation with the X Mg. The fluorine intercept values [IV (F)] from the potassic and phyllic alteration zones are strongly positively correlated with the fluorine/chlorine intercept values [IV (F/Cl)]. Biotite geothermometry for the potassic and phyllic alteration zones yield a range from 402° to 450°C and 280° to 343°C, respectively at Dalli porphyry copper deposit. The scatter in log (X F/X OH) ratios vs. X Mg and X Fe plots also reflects the evidence of biotite formed under dissimilar composition and temperature conditions in the potassic and phyllic alteration zones. Calculated log fugacity ratios of (fH2O/fHF), (fH2O/fHCl), and (fHF/fHCl) show that hydrothermal fluids associated with the potassic alteration were distinctively different from fluids those associated with the phyllic alteration zone at Dalli porphyry copper deposit. The relation between log (fH2O/fHCl) and log (fH2O/fHF) fugacity ratios indicates that biotite from the Dalli volcano-plutonic rocks is distinctly similar to biotite from the porphyry copper deposit at Bingham.


Hydrothermal Fluid Copper Deposit Alteration Zone Porphyry Copper Deposit Potassic Alteration 
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.



This study forms the part of a PhD research of senior author carried out by the adviser of HA Haroni at Isfahan University, Iran. The authors thank the staff of office of graduate studies at Isfahan University for their supports. We would like to express our appreciation to Dr. M. Khalili, Department of Geology, Isfahan University for his valuable suggestions. Special thanks are due to Dr. M. A. Mackizadeh for his hospitality and patient guidance at his mining company during the field studies. Saeed Mahdevari at Department of Mining, Isfahan University of Technology, is thanked for his helpful comments and continued friendship. This paper benefited from the valuable comments and suggestions of two anonymous referees. We are grateful to Dr. Anton Beran for his editorial handling.


  1. Angelkov K, Parvanov B (1980) The Assarel porphyry copper deposit, Bulgaria. In: Janković S, Sillitoe RH (eds) European copper deposits. Society of Applied Ore Deposits, Special Publication 1, pp 59–62Google Scholar
  2. Bailey SW (1980) Summary and recommendations of AIPEA Nomenclature Committee. Clay Clay Miner 28:73–78Google Scholar
  3. Beane RE (1974) Biotite stability in the porphyry copper environment. Econ Geol 69:241–256Google Scholar
  4. Bowman JR, Parry WT, Kropp WP, Kruer SA (1987) Chemical and isotopic evolution of hydrothermal solutions at Bingham, Utah. Econ Geol 82:395–428Google Scholar
  5. Cathelineau M (1988) Cation site occupancy in chlorites and illites as a function of temperature. Clay Miner 23:471–485CrossRefGoogle Scholar
  6. Dymek RF (1983) Titanium, aluminum and interlayer cation substitutions in biotite from high-grade gneisses, west Greenland. Am Mineral 68:880–899Google Scholar
  7. Emami MH (1991) Explanatory text of the Qom, Geological Quadrangle Map, 1:250,000, Geological Survey of Iran, No. E6Google Scholar
  8. Ford JH (1978) A chemical study of alteration at the Panguna porphyry copper deposit, Bougainville, Papua New Guinea. Econ Geol 73:703–720Google Scholar
  9. Foster MD (1960) Interpretation of the composition of trioctahedral micas. US Geol Surv, Prof Pap 354-B:1–146Google Scholar
  10. Gatter I, Földessy J, Zelenka T, Kiss J, Szebényi G (1999) High and low-sulfididation epithermal mineralization of the Mátra Mountains, Northeast Hungary. In: Molnár F, Lexa J, Hedenquist JW (eds) Epithermal mineralization of the western Carpathians. Society of Economic Geology Guidebook Series 31, pp 155–180Google Scholar
  11. Haroni HA (2005) Preliminary Exploration at Dalli Porphyry Cu-Prospect, Central Province of Iran, DORSA Engineering Limited, pp 22Google Scholar
  12. Hey MH (1954) A new review of the chlorites. Mineral Mag 30:277–292CrossRefGoogle Scholar
  13. Hezarkhani A (2006a) Fluid inclusion investigations of the Raigan porphyry copper system, Kerman-Bam, Iran. Int Geol Rev 48:255–270CrossRefGoogle Scholar
  14. Hezarkhani A (2006b) Hydrothermal evolution of the Sar-Cheshmeh porphyry Cu–Mo deposit, Iran: evidence from fluid inclusion. J Asian Earth Sci 28:409–422CrossRefGoogle Scholar
  15. Hezarkhani A, Williams-Jones AE (1998) Controls of alteration and mineralization in the Sungun porphyry copper deposit, Iran: evidence from fluid inclusion and stable isotopes. Econ Geol 93:651–670Google Scholar
  16. Jacobs DC, Parry WT (1979) Geochemistry of biotite in the Santa Rita Porphyry copper deposit, New Mexico. Econ Geol 74:860–887Google Scholar
  17. Jelanković R, Vakanjac B (1999) Paragenetic features and model of development of the Veliki Krivelj copper deposit (Serbia). Geol Macedonica 13:23–30Google Scholar
  18. Lainer G, Raab WJ, Folsom RB, Cone S (1978) Alteration of equigranular monzonite, Bingham Mining District, Utah. Econ Geol 73:1270–1286CrossRefGoogle Scholar
  19. Loferski PJ, Ayuso RA (1995) Petrography and mineral chemistry of the composite Deboullie pluton, northern Maine, USA: implications for the genesis of Cu–Mo mineralization. Chem Geol 123:89–105CrossRefGoogle Scholar
  20. Melfos V, Vavelidis M, Christofides G, Seidel E (2002) Origin and evolution of the Tertiary Maronia porphyry copper–molybdenum deposit, Thrace, Greece. Miner Deposita 37:648–668CrossRefGoogle Scholar
  21. Milu V, Milesi J-P, Leroy JL (2004) Rosia Poieni copper deposit, Apuseni Mountains, Romania: advanced argillic overprint of a porphyry system. Miner Deposita 39:173–188CrossRefGoogle Scholar
  22. Munoz JL (1984) F–OH and Cl–OH exchange in micas with applications to hydrothermal ore deposits. In: Bailey SW (ed) Micas. Reviews in Mineralogy, vol. 13. Mineralogical Society of America, Washington, DC, pp 469–493Google Scholar
  23. Munoz JL (1992) Calculation of HF and HCl fugacities from biotite compositions: revised equations. Geological Society of American Abstract Programs 24, A221Google Scholar
  24. Parry WT, Ballantyne GH, Wilson JC (1978) Chemistry of biotite and apatite from a vesicular quartz latite porphyry plug at Bingham, Utah. Econ Geol 73:1308–1314CrossRefGoogle Scholar
  25. Selby D, Nesbitt BE (2000) Chemical composition of biotite from Casino porphyry Cu–Au–Mo mineralization, Yukon, Canada: evaluation of magmatic and hydrothermal fluid chemistry. Chem Geol 171:77–93CrossRefGoogle Scholar
  26. Sillitoe RH, Khan SN (1977) Geology of the Saindak porphyry copper deposit, Pakistan. Transaction Institute of Mining and Metallurgy Section B:86, B27–42Google Scholar
  27. Taylor RP (1983) Comparison of biotite geochemistry of Bakircay, Turkey, and Los Pelambres, Chile, porphyry copper systems. Inst Min Met. Sec B: App Earth Sci, B92:B16–B22Google Scholar
  28. Tischendorf G, Gottesmann B, Förster H-J, Trumbull RB (1997) On Li-bearing micas: estimating Li from electron microprobe analyses and an improved diagram for graphical representation. Mineral Mag 61:809–834CrossRefGoogle Scholar
  29. Yavuz F (1997) Igneous and hydrothermal alteration biotites from the Güzelyayla porphyry copper mineralization area, northern Turkey. In: Papunen H (ed) Mineral deposits: research and exploration—Where do they meet? Proceedings of the Fourth Biennial SGA Meeting, Turku/Finland, pp 691–694Google Scholar
  30. Yavuz F (2003a) Evaluating micas in petrologic and metallogenic aspect: I—definitions and structure of the computer program Mica+. Comput Geosci 29:1203–1213CrossRefGoogle Scholar
  31. Yavuz F (2003b) Evaluating micas in petrologic and metallogenic aspect: Part II—Applications using the computer program Mica+. Comput Geosci 29:1215–1228CrossRefGoogle Scholar
  32. Zarasvandi A, Liaghat S, Zentilli M (2005) Geology of the Darreh-Zerreshk and Ali-Abad porphyry copper deposits, central Iran. Int Geol Rev 47:620–646CrossRefGoogle Scholar
  33. Zhu C, Sverjensky DA (1991) Partitioning of F–Cl–OH between minerals and hydrothermal fluids. Geochim Cosmochim Acta 55:1837–1858CrossRefGoogle Scholar
  34. Zhu C, Sverjensky DA (1992) F–Cl–OH partitioning between biotite and apatite. Geochim Cosmochim Acta 56:3435–3467CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • F. Ayati
    • 1
  • F. Yavuz
    • 2
    Email author
  • M. Noghreyan
    • 1
  • H. A. Haroni
    • 3
  • R. Yavuz
    • 4
  1. 1.Department of GeologyIsfahan UniversityIsfahanIran
  2. 2.Jeoloji Mühendisliği Bölümüİstanbul Teknik ÜniversitesiİstanbulTurkey
  3. 3.Department of MiningIsfahan University of TechnologyIsfahanIran
  4. 4.Kimya Mühendisliği Bölümüİstanbul Teknik ÜniversitesiİstanbulTurkey

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