شیمی کانی توده گرانیتوئیدی غرب اردکان (ایران مرکزی)

نوع مقاله : مقاله پژوهشی

نویسنده

گروه زمین‌شناسی، دانشگاه پیام نور، تهران، ایران

چکیده

توده گرانیتوئیدی غرب اردکان با مجموعه کانی‌های اصلی کوارتز، ارتوکلاز، پلاژیوکلاز و کانی‌های فرعی آمفیبول، بیوتیت، اسفن، زیرکن و آپاتیت در بخش میانی پهنه ایران مرکزی رخنمون دارد. بافت غالب در این توده دانه­ای متوسط تا ریز، گرانوفیری و میرمیکیتی است. بر اساس داده‌های شیمی کانی‌، آمفیبول‌های کلسیمی با ماهیت منیزیوهورنبلند تا اکتینولیت در دمای oC 890-530  متبلور شده‌اند. همزمان، کانی پلاژیوکلاز نوع الیگوکلاز تا آندزین در oC 700-800 و بیوتیت‌های منیزیم‌دار در دمای oC 730-650 متبلورشده‌اند. همچنین با توجه به شرایط اکسایشی، کانی‌های کدر نوع مگنتیت تشکیل شده‌اند. داده­های شیمی همه این کانی‌ها به ماهیت گوشته‌ای ماگمای سازنده آنها اشاره دارد، که طی صعود دچار آلایش پوسته‌ای متوسط تا شدید شده‌اند. این توده‌ها با سرشت آهکی قلیایی از نوع I هستند که در موقعیت زمین‌ساختی فرورانش در ارتباط با کرانه قاره‌ای فعال تشکیل شده‌اند

کلیدواژه‌ها

عنوان مقاله [English]

Mineral chemistry of the granitoides of West Ardakan (Central Iran)

نویسنده [English]

  • javad ghanei ardakani
Department of Geology, Payame Noor University, Tehran, Iran
چکیده [English]

The granitoides of west Ardakan are outcropped in the middle part of the Central Iran zone. Quartz, orthoclase and plagioclase are the main minerals and amphibole, biotite, sphene, zircon and apatite are secondary minerals. The dominant textures are medium to fine grain granular, granophyry and myrmikite[r1] . According to mineral chemistry data, calcic amphiboles of magnesiohornblende to actinolite nature have crystallized at temperatures of 530-890 ºC. Oligoclase to andesine plagioclased crystallized at 700-800 ºC. Magnesium biotites was crystallized at 650-730 ºC. On the basis of the oxidant conditions, magnetite are formed as opaque. The chemical analysis of all these minerals show the mantle nature of the magma. Magma seems to suffer produced these minerals, moderate to severe crustal contamination during its ascent. These granitoides are I type  and calc-alkaline and were formed in the subduction setting related to the active continental margin.

کلیدواژه‌ها [English]

  • Mineral chemistry
  • Granitoid
  • calc-alkaline
  • Ardakan
  • Thermobarometry

مراجع

  1. [1] Darvishzadeh A., "Geology of Iran", Neda publication, Tehran (1991) 901p.
  2. [1] Darvishzadeh A., "Geology of Iran", Neda publication, Tehran (1991) 901p.
  3. [2] Alavi M., "Regional stratigraphy of the Zagros fold-thrust belt of Iran and its proforeland evolution". American Journal of Science 304 (2004) pp. 1-20. [DOI:10.2475/ajs.304.1.1]
  4. [2] Alavi M., "Regional stratigraphy of the Zagros fold-thrust belt of Iran and its proforeland evolution". American Journal of Science 304 (2004) pp. 1-20. [DOI:10.2475/ajs.304.1.1]
  5. [3] Aftabi A., Atapour H., "Regional aspects of shoshonitic volcanism in Iran", Episodes 23 (2000) pp. 119-125.
  6. [3] Aftabi A., Atapour H., "Regional aspects of shoshonitic volcanism in Iran", Episodes 23 (2000) pp. 119-125.
  7. [4] Moin-Vaziri H., "An introduction to magmatism in Iran", Kharazmi University publication. 440pp. (2004) (in Persian).
  8. [4] Moin-Vaziri H., "An introduction to magmatism in Iran", Kharazmi University publication. 440pp. (2004) (in Persian).
  9. [5] Hassanzadeh J., Ghazi A. M., Axen G., Guest B., "Oligomiocene mafic-alkaline magmatism in north and northwest of Ira n: evidence for the separation of the Alborz from the Urumieh-Dokhtar magmatic arc", Geology Society American Abstract Progom. 34 (2002) 331p.
  10. [5] Hassanzadeh J., Ghazi A. M., Axen G., Guest B., "Oligomiocene mafic-alkaline magmatism in north and northwest of Ira n: evidence for the separation of the Alborz from the Urumieh-Dokhtar magmatic arc", Geology Society American Abstract Progom. 34 (2002) 331p.
  11. [6] Berberian M., King G. C. P., "Toward a paleogeography and tectonic evolution of Iran.", Canadian Journal of Earth Sciences 18, pp. 210-265. [DOI:10.1139/e81-019]
  12. [6] Berberian M., King G. C. P., "Toward a paleogeography and tectonic evolution of Iran.", Canadian Journal of Earth Sciences 18, pp. 210-265. [DOI:10.1139/e81-019]
  13. [7] Berberian F., Muir I. D., Pankhurst R. J., Berberian M., "Late Cretaceous and earlyMiocene Andean-type plutonic activity in northern Makran and Central Iran", Journal of the Geological Society 139 (1982) pp. 605-614. [DOI:10.1144/gsjgs.139.5.0605]
  14. [7] Berberian F., Muir I. D., Pankhurst R. J., Berberian M., "Late Cretaceous and earlyMiocene Andean-type plutonic activity in northern Makran and Central Iran", Journal of the Geological Society 139 (1982) pp. 605-614. [DOI:10.1144/gsjgs.139.5.0605]
  15. [8] Mohajjel M., Fergusson C. L., Sahandi M. R., "Cretaceous-Tertiary convergence and continental collision, Sanandaj-Sirjan Zone, western Iran", Journal of Asian Earth Sciences 21 (2003) pp. 397-412. [DOI:10.1016/S1367-9120(02)00035-4]
  16. [8] Mohajjel M., Fergusson C. L., Sahandi M. R., "Cretaceous-Tertiary convergence and continental collision, Sanandaj-Sirjan Zone, western Iran", Journal of Asian Earth Sciences 21 (2003) pp. 397-412. [DOI:10.1016/S1367-9120(02)00035-4]
  17. [9] Omrani J., Agard P., Whitechurch H., Benoit M., Prouteau G., Jolivet L., "Arc-magmatism and subduction history beneath the Zagros Mountains, Iran: A new report of adakites and geodynamic consequences", Lithos 106 (2008) pp. 380-398. [DOI:10.1016/j.lithos.2008.09.008]
  18. [9] Omrani J., Agard P., Whitechurch H., Benoit M., Prouteau G., Jolivet L., "Arc-magmatism and subduction history beneath the Zagros Mountains, Iran: A new report of adakites and geodynamic consequences", Lithos 106 (2008) pp. 380-398. [DOI:10.1016/j.lithos.2008.09.008]
  19. [10] Shahabpour J., "Tectonic evolution of the orogenic belt in the region located between Kerman and Neyriz. Aj", Asian Earth Science 24 (2005) pp 405-417. [DOI:10.1016/j.jseaes.2003.11.007]
  20. [10] Shahabpour J., "Tectonic evolution of the orogenic belt in the region located between Kerman and Neyriz. Aj", Asian Earth Science 24 (2005) pp 405-417. [DOI:10.1016/j.jseaes.2003.11.007]
  21. [11] Hajmolaali A., Ghomashi A., Afsharian A.M., Hadadian M., "geology map 1/100000 of Khezrabad", Geological Survey and Mineral Explorationof Iran (1996).
  22. [11] Hajmolaali A., Ghomashi A., Afsharian A.M., Hadadian M., "geology map 1/100000 of Khezrabad", Geological Survey and Mineral Explorationof Iran (1996).
  23. [12] Shabanian N., Davoudian A. R., Dong Y., Liu X., "U-Pb zircon dating, geochemistry and Sr-Nd-Pb isotopic ratios from Azna-Dorud Cadomian metagranites, Sanandaj-Sirjan zone of western Iran", Precambrian Research, 306:41-60 (2018).

    https://doi.org/10.1016/j.precamres.2017.12.037 [DOI:10.1016/j.precamres.2017.12.037.]
  24. [12] Shabanian N., Davoudian A. R., Dong Y., Liu X., "U-Pb zircon dating, geochemistry and Sr-Nd-Pb isotopic ratios from Azna-Dorud Cadomian metagranites, Sanandaj-Sirjan zone of western Iran", Precambrian Research, 306:41-60 (2018).

    https://doi.org/10.1016/j.precamres.2017.12.037 [DOI:10.1016/j.precamres.2017.12.037.]
  25. [13] Esawi E. K., "AMPH-CLASS: An excel spreadsheet for the classification and nomenclature of amphibole based on the 1997 recommendations of the international mineralogical Association", Computers Geosciences 30 (2004) pp. 753-760. [DOI:10.1016/j.cageo.2004.05.007]
  26. [13] Esawi E. K., "AMPH-CLASS: An excel spreadsheet for the classification and nomenclature of amphibole based on the 1997 recommendations of the international mineralogical Association", Computers Geosciences 30 (2004) pp. 753-760. [DOI:10.1016/j.cageo.2004.05.007]
  27. [14] Stein E., Dietl E., "Hornblende Thermobarometry of Granitoids of Central Odenwald (Germany) and Their Implication for the Geotectonic Development of the Odenwald", Mineralogy and Petrology, 72 (2001) 185-207. [DOI:10.1007/s007100170033]
  28. [14] Stein E., Dietl E., "Hornblende Thermobarometry of Granitoids of Central Odenwald (Germany) and Their Implication for the Geotectonic Development of the Odenwald", Mineralogy and Petrology, 72 (2001) 185-207. [DOI:10.1007/s007100170033]
  29. [15] Anderson J. L., Smith D. R., "The effect of temperature and oxygen fugacity on Al-in-hornblende barometry", American Mineralogist 80 (1995) pp. 549-559. [DOI:10.2138/am-1995-5-614]
  30. [15] Anderson J. L., Smith D. R., "The effect of temperature and oxygen fugacity on Al-in-hornblende barometry", American Mineralogist 80 (1995) pp. 549-559. [DOI:10.2138/am-1995-5-614]
  31. [16] Leake B. E., Woolley A. R., Arps C. E. S., Birch W. D., Gilbert M. C., Grice J. D., Hawthorne F. C., Kato A., Kisch H. J., Krivovichev V. G., Linthout K., Laird J., Mandarino J. A., Maresch W. V., Nickel E. H., Rock N. M. S., Schumacher J. C., Smith D. C., Stephenson N. C. N., Ungaretti L., Whittaker E. J. W., Youzhi G., "Nomenclature of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names", Eurpean Journal Mineralogy. 9, (1997) pp. 623-651. [DOI:10.1127/ejm/9/3/0623]
  32. [16] Leake B. E., Woolley A. R., Arps C. E. S., Birch W. D., Gilbert M. C., Grice J. D., Hawthorne F. C., Kato A., Kisch H. J., Krivovichev V. G., Linthout K., Laird J., Mandarino J. A., Maresch W. V., Nickel E. H., Rock N. M. S., Schumacher J. C., Smith D. C., Stephenson N. C. N., Ungaretti L., Whittaker E. J. W., Youzhi G., "Nomenclature of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names", Eurpean Journal Mineralogy. 9, (1997) pp. 623-651. [DOI:10.1127/ejm/9/3/0623]
  33. [17] Schmidt M., "Amphibole composition in tonalities as a function of pressure: an experimental calibration of the Al in hombelende barmometre", Contribution Mineral Petrology 110, (1992) pp. 304-310. [DOI:10.1007/BF00310745]
  34. [17] Schmidt M., "Amphibole composition in tonalities as a function of pressure: an experimental calibration of the Al in hombelende barmometre", Contribution Mineral Petrology 110, (1992) pp. 304-310. [DOI:10.1007/BF00310745]
  35. [18] Wones D. R., Eugster H. P., "Stability of biotite experiment, theory, and application", American Mineralogy 50 (1965) pp.1228-1272.
  36. [18] Wones D. R., Eugster H. P., "Stability of biotite experiment, theory, and application", American Mineralogy 50 (1965) pp.1228-1272.
  37. [19] Moazzen M., Droop G. T. R., "Application of mineral thermometers and barometers to granitoid igneous rocks: the Etive Complex, W Scotland", Mineralogy and Ptrology 83 (2005) pp. 27-53. [DOI:10.1007/s00710-004-0059-z]
  38. [19] Moazzen M., Droop G. T. R., "Application of mineral thermometers and barometers to granitoid igneous rocks: the Etive Complex, W Scotland", Mineralogy and Ptrology 83 (2005) pp. 27-53. [DOI:10.1007/s00710-004-0059-z]
  39. [20] Anderson J. L., "Status of thermo-barometry in granitic batholiths", Earth Science Review 87 (1996) pp. 125-138. [DOI:10.1017/S0263593300006544]
  40. [20] Anderson J. L., "Status of thermo-barometry in granitic batholiths", Earth Science Review 87 (1996) pp. 125-138. [DOI:10.1017/S0263593300006544]
  41. [21] Chappell B. W., White A. J. R., Williams I. S., Wyborn D., "Low- and high-temperature granites. Trans. Roy. Soc.", Edinburgh: Earth Sci. (in press).
  42. [21] Chappell B. W., White A. J. R., Williams I. S., Wyborn D., "Low- and high-temperature granites. Trans. Roy. Soc.", Edinburgh: Earth Sci. (in press).
  43. [22] Coltorti M., Bondaiman C., Faccini B., Grégoire M., O'Reilly S. Y., Powell W., "Amphiboles from suprasubduction and intraplate lithospheric mantle", Lithos 99 (2007) pp. 68-84. [DOI:10.1016/j.lithos.2007.05.009]
  44. [22] Coltorti M., Bondaiman C., Faccini B., Grégoire M., O'Reilly S. Y., Powell W., "Amphiboles from suprasubduction and intraplate lithospheric mantle", Lithos 99 (2007) pp. 68-84. [DOI:10.1016/j.lithos.2007.05.009]
  45. [23] Zhang C.L., Yu H.F., Ye H.M., Zhao Y., Zhang D.S., "Aoyitake plagiogranite in western Tarim block, NW China: Age, geochemistry", petrogenesis and its tectonic implications:Science in China Series D: Earth Sciences, 49(11) (2006) p. 1121-1134. [DOI:10.1007/s11430-006-1121-y]
  46. [23] Zhang C.L., Yu H.F., Ye H.M., Zhao Y., Zhang D.S., "Aoyitake plagiogranite in western Tarim block, NW China: Age, geochemistry", petrogenesis and its tectonic implications:Science in China Series D: Earth Sciences, 49(11) (2006) p. 1121-1134. [DOI:10.1007/s11430-006-1121-y]
  47. [24] Abdel- Rahman A. M., "Nature of biotites from Alkaline, Calc-alkaline and Peraluminous magmas", Journal of Petrology 35, 2 (1994) pp. 525-541. [DOI:10.1093/petrology/35.2.525]
  48. [24] Abdel- Rahman A. M., "Nature of biotites from Alkaline, Calc-alkaline and Peraluminous magmas", Journal of Petrology 35, 2 (1994) pp. 525-541. [DOI:10.1093/petrology/35.2.525]
  49. [25] Ben Ohoud M. D., "iscrimination between primary magmatic biotites, reequilibrated biotites and neoformed biotites", Publhshed by Elsevier SAS.
  50. [25] Ben Ohoud M. D., "iscrimination between primary magmatic biotites, reequilibrated biotites and neoformed biotites", Publhshed by Elsevier SAS.
  51. [26] Droop G. T. R., "A general equation Fe3+ concentration in ferromagnesian silicates and oxygen from microprobe analysis using stoichiometric criteria", Mineralogical Magazine 51 (1987) pp. 431-435. [DOI:10.1180/minmag.1987.051.361.10]
  52. [26] Droop G. T. R., "A general equation Fe3+ concentration in ferromagnesian silicates and oxygen from microprobe analysis using stoichiometric criteria", Mineralogical Magazine 51 (1987) pp. 431-435. [DOI:10.1180/minmag.1987.051.361.10]
  53. [27] Nachit H., Ibhi A., Abia E. l. H., Ohoud M. B. "Discrimination between primary magmatic Biotites", C. R. Acad. Science. Paris Geoscience 337 (2005) pp.1415-1420. [DOI:10.1016/j.crte.2005.09.002]
  54. [27] Nachit H., Ibhi A., Abia E. l. H., Ohoud M. B. "Discrimination between primary magmatic Biotites", C. R. Acad. Science. Paris Geoscience 337 (2005) pp.1415-1420. [DOI:10.1016/j.crte.2005.09.002]
  55. [28] Nockolds S. R., "The relation between chemical composition and paragenesis in the Biotite micas of igneous rocks", American Journal Science 245 (1947) pp.401-420. [DOI:10.2475/ajs.245.7.401]
  56. [28] Nockolds S. R., "The relation between chemical composition and paragenesis in the Biotite micas of igneous rocks", American Journal Science 245 (1947) pp.401-420. [DOI:10.2475/ajs.245.7.401]
  57. [29] Fleet M .E., Barnett R.L., "Partitioning in calciferous amphiboles from the Frood mineSudbury, Ontario", The Canadian Mineralogist 16 (1978) pp. 527-532.
  58. [29] Fleet M .E., Barnett R.L., "Partitioning in calciferous amphiboles from the Frood mineSudbury, Ontario", The Canadian Mineralogist 16 (1978) pp. 527-532.
  59. [30] Jiang Y., Jiang S., Ling H., Zhou X., Rui X., Yang W., "Petrology and geochemistry of shoshonitic plutons from the western Kunlun orogenic belt, Xinjiang", northwestern China:implications for granitoid geneses. Lithos 63 (2002) pp. 165-187. [DOI:10.1016/S0024-4937(02)00140-8]
  60. [30] Jiang Y., Jiang S., Ling H., Zhou X., Rui X., Yang W., "Petrology and geochemistry of shoshonitic plutons from the western Kunlun orogenic belt, Xinjiang", northwestern China:implications for granitoid geneses. Lithos 63 (2002) pp. 165-187. [DOI:10.1016/S0024-4937(02)00140-8]
  61. [31] Forster H. J., Tischendorf G., "Reconstruction of the volatile characteristics of granitoidic magmas and hydrothermal solutions on the basis of dark micas: the Hercynian Postkinematic granites and associated high-temperature mineralization of the Erzgebirge (G.D.R)", Chemie der Erade (Geochemistry) 49 (1989) pp.7-20.
  62. [31] Forster H. J., Tischendorf G., "Reconstruction of the volatile characteristics of granitoidic magmas and hydrothermal solutions on the basis of dark micas: the Hercynian Postkinematic granites and associated high-temperature mineralization of the Erzgebirge (G.D.R)", Chemie der Erade (Geochemistry) 49 (1989) pp.7-20.
  63. [32] Lalonde A., Bernard P., "Composition and colour of Biotite from granits", Can. Mineralogy 31 (1993) pp. 203-217.
  64. [32] Lalonde A., Bernard P., "Composition and colour of Biotite from granits", Can. Mineralogy 31 (1993) pp. 203-217.
  65. [33] Henry D. J., Guidotti C. V., Thomason J. A., "The Ti-substitution surface for low-to-medium pressure metapeliticbiotites: implications for geothermometry and Ti- substitution mechanisms", American Mineralogist 90 (2005) pp. 316-328. [DOI:10.2138/am.2005.1498]
  66. [33] Henry D. J., Guidotti C. V., Thomason J. A., "The Ti-substitution surface for low-to-medium pressure metapeliticbiotites: implications for geothermometry and Ti- substitution mechanisms", American Mineralogist 90 (2005) pp. 316-328. [DOI:10.2138/am.2005.1498]
  67. [34] Ague J. J., Brimhall G. H., "Regional variations in bulk chemistry", mineralogy and the compositions of mafic andaccessory minerals in the batholiths of California. Geological Society of America Bulletin, 100 (1988) pp. 891-911

    https://doi.org/10.1130/0016-7606(1988)1002.3.CO;2 [DOI:10.1130/0016-7606(1988)1002.3.CO;2]
  68. [34] Ague J. J., Brimhall G. H., "Regional variations in bulk chemistry", mineralogy and the compositions of mafic andaccessory minerals in the batholiths of California. Geological Society of America Bulletin, 100 (1988) pp. 891-911

    https://doi.org/10.1130/0016-7606(1988)1002.3.CO;2 [DOI:10.1130/0016-7606(1988)1002.3.CO;2]
  69. [35] Deer W.A., Howie R. A., Zussman J., "An introduction to the rock forming minerals", Longman Scientific and Technical (1991) 528 p.
  70. [35] Deer W.A., Howie R. A., Zussman J., "An introduction to the rock forming minerals", Longman Scientific and Technical (1991) 528 p.
  71. [36] Elkins L .T., Grove T. L., "Ternary feldspar experiments and thermodynamic models", American Mineralogist 75 (1990) pp. 544-559
  72. [36] Elkins L .T., Grove T. L., "Ternary feldspar experiments and thermodynamic models", American Mineralogist 75 (1990) pp. 544-559

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  • تاریخ دریافت: 25 مهر 1402
  • تاریخ بازنگری: 14 آذر 1402
  • تاریخ پذیرش: 05 دی 1402

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