تکامل ریزساختاری کانی‌ها طی سردشدن توده نفوذی زرین، شاهدی بر دگرشکلی پویا

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه لرستان

2 سازمان زمین‌شناسی و اکتشافات معدنی کشور

3 دانشگاه کاتانیا

چکیده

گرانیتویید زرین در قطعه یزد و ایران مرکزی جای دارد. سنگ‌های گرانیتوییدی زرین ویژگی پروتومیلونیتی تا میلونیتی نشان می‌دهند. در گرانینویید زرین، ریزساختارهایی چون الگوی خاموشی شطرنجی در کوارتز و شکستگی‌های شبه ماگمایی در پلاژیوکلاز گویای دگرشکلی در دمای بالا (650 درجه سانتی‌گراد) و در حضور مذاب هستند. ریزساختارهایی چون برآمدگی فلدسپار، مهاجرت مرز خرده دانه، بازتبلور و چرخش مرز خرده دانه‌های کوارتز و فلدسپار بیانگر دگرشکلی در دمای بیش از 450 درجه سانتی‌گراد و ریزساختارهایی مانند برآمدگی کوارتز، میکای شکن شده، ماکل دگرشکلی و خمش فلدسپار نیز نشانگر دگرشکلی در دمای کمتر از 450 درجه سانتی‌گراد هستند. توالی ریزساختارها در کانی‌های توده نفوذی زرین از شرایط شبه‌ ماگمایی تا حالت جامد دما-پایین نشان دهنده گسترش دگرشکلی‌های برشی طی سرد شدن ماگما در زمان­ها و اعماق مختلف است. همچنین قرارگیری ریزساختارهای حالت جامد دما-پایین بر ریزساختارهای شبه ماگمایی و دما-بالا نشان می­دهد که گرانیت زرین ویژگی دگرشکلی را هم در زمان تبلور و در حضور مذاب با وجود ریزساختارهای شبه ماگمایی و هم در زمان سرد شدن و تبلور کامل با وجود ریزساختارهای دماپایین در خود ثبت کرده‌است.     

کلیدواژه‌ها

عنوان مقاله [English]

Evolution of recorded microstructures in minerals during cooling of Zarrin intrusion, evidence for dynamic deformation

نویسندگان [English]

  • Askari 1
  • Zarei Sahamieh 1
  • Omrani 2
  • Emami 2
  • Fiannacca 3
1
2
3
چکیده [English]

The Zarrin granitoids is located in the west of Yazd block, Central Iran. Zarrin granitoids exhibit mylonitic rocks ranging from protomylonitic to mylontic. In Zarrin granitoids examples of sub-magmatic, microstructures are represented by chessboard patterns in quartz and sub-magmatic fractures in plagioclase, indicating deformation at high-temperature conditions (T > 650º C) and the presence of melt. Some microstructures such as feldspar bulging, quartz grain boundary migration, and subgrain rotation recrystallization imply solid state-high temperature deformation (T > 450º C).  Solid state-low temperature deformation microstructures (T < 450º C) include mica kinks, quartz bulging, feldspar twinning and bending. Sequence of microstructures from sub-magmatic to low-temperature solid-state deformation revealed shear-related deformation at developed during cooling of granitoids at different times and depths. Further, it shows overprinting of low temperature microstructures on earlier sub-magmatic and HT sub-solidus microstructure indictes. Zarrin granitoids recording deformation in the presence of a residual melt during crystallization by submagmatic microstructures and the full crystallization and cooling of the magmatic body by low temperature microstructures.

کلیدواژه‌ها [English]

  • granite
  • deformation microstructures
  • Yazd block
  • Central Iran

مراجع

  1. [1] Emami M. H., "Magmatism in Iran. Geological Survey and Mineral Exploration Organization", page 608(2000).
  2. [1] Emami M. H., "Magmatism in Iran. Geological Survey and Mineral Exploration Organization", page 608(2000).
  3. [2] Alavi M., "Tectonic of the Zagros orogenic belt of Iran: new data and interpretations: Tectonophysics", v. 229 (1994) p. 211-239. [DOI:10.1016/0040-1951(94)90030-2]
  4. [2] Alavi M., "Tectonic of the Zagros orogenic belt of Iran: new data and interpretations: Tectonophysics", v. 229 (1994) p. 211-239. [DOI:10.1016/0040-1951(94)90030-2]
  5. [3] Heidari S. M., Mossavi Makooi S. A., Mirzakhanian M., Rasoli F., Ghaderi M., Abadi A. R., "A review of tectonomagmatic evolution and gold metallogeny in the inner parts of Zagros orogeny: a tectonic model for the major gold deposits, western Iran", Eurasian Mining, 1 (2006) 3-20.
  6. [3] Heidari S. M., Mossavi Makooi S. A., Mirzakhanian M., Rasoli F., Ghaderi M., Abadi A. R., "A review of tectonomagmatic evolution and gold metallogeny in the inner parts of Zagros orogeny: a tectonic model for the major gold deposits, western Iran", Eurasian Mining, 1 (2006) 3-20.
  7. [4] Ghasemi A., Talbot C.J., "A new tectonic scenario for the Sanandaj-Sirjan Zone (Iran) ", Journal of Asian Earth Sciences 26 (2006) 683-693. [DOI:10.1016/j.jseaes.2005.01.003]
  8. [4] Ghasemi A., Talbot C.J., "A new tectonic scenario for the Sanandaj-Sirjan Zone (Iran) ", Journal of Asian Earth Sciences 26 (2006) 683-693. [DOI:10.1016/j.jseaes.2005.01.003]
  9. [5] Richards J. P., Sholeh A., "The Tethyan tectonic history and Cu-Au metallogeny of Iran. Tectonics and Metallogeny of the Tethyan Orogenic Belt. Society of Economic GeologistsI, Special Publication, 19 (2016) 193-212.
  10. [5] Richards J. P., Sholeh A., "The Tethyan tectonic history and Cu-Au metallogeny of Iran. Tectonics and Metallogeny of the Tethyan Orogenic Belt. Society of Economic GeologistsI, Special Publication, 19 (2016) 193-212.
  11. [6] Yigit O., "Gold in Turkey-a missing link in Tethyan metallogeny", Ore Geology Reviews, v. 28, (2006) p. 47-179. [DOI:10.1016/j.oregeorev.2005.04.003]
  12. [6] Yigit O., "Gold in Turkey-a missing link in Tethyan metallogeny", Ore Geology Reviews, v. 28, (2006) p. 47-179. [DOI:10.1016/j.oregeorev.2005.04.003]
  13. [7] Alaei Mehabadi S., "Geological map 1: 100,000, Salafchegan", Geological Survey of Iran (2000).
  14. [7] Alaei Mehabadi S., "Geological map 1: 100,000, Salafchegan", Geological Survey of Iran (2000).
  15. [8] Khannazer N.H., "Geological map 1: 100,000, Kuhin", Geological Survey of Iran (2015).
  16. [8] Khannazer N.H., "Geological map 1: 100,000, Kuhin", Geological Survey of Iran (2015).
  17. [9] Stockli D.F., Hassanzadeh J., Stockli L.D., Axen G., Walker J.D., Dewane T.J., "Structural and geochronological evidence for oligo-miocene intra-arc low-angle detachment faulting in the Takab-Zanjan area, NW Iran", Geological Society of America Abstracts with Programs, v. 36 (2004) n. 5, p. 319.
  18. [9] Stockli D.F., Hassanzadeh J., Stockli L.D., Axen G., Walker J.D., Dewane T.J., "Structural and geochronological evidence for oligo-miocene intra-arc low-angle detachment faulting in the Takab-Zanjan area, NW Iran", Geological Society of America Abstracts with Programs, v. 36 (2004) n. 5, p. 319.
  19. [10] Moritz R., Ghazban F., Singer B.S., "Eocene gold ore formation at Muteh, Sanandaj-Sirjan tectonic zone, Western Iran: A result of late-stage extension and exhumation of metamorphic basement rocks within the Zagros Orogen": Economic Geology, v. 101 (2006) p. 1497-1524. [DOI:10.2113/gsecongeo.101.8.1497]
  20. [10] Moritz R., Ghazban F., Singer B.S., "Eocene gold ore formation at Muteh, Sanandaj-Sirjan tectonic zone, Western Iran: A result of late-stage extension and exhumation of metamorphic basement rocks within the Zagros Orogen": Economic Geology, v. 101 (2006) p. 1497-1524. [DOI:10.2113/gsecongeo.101.8.1497]
  21. [11] Echtler H., Mallavieller J., "Extentional Tectonics, basement uplift and Stephano-Permian collapse basin in a late Variscan metamorphic core complex (Montagne Noire/Suthern Massif Central)", Tectonophysics, v. 177 (1990) p. 125-138. [DOI:10.1016/0040-1951(90)90277-F]
  22. [11] Echtler H., Mallavieller J., "Extentional Tectonics, basement uplift and Stephano-Permian collapse basin in a late Variscan metamorphic core complex (Montagne Noire/Suthern Massif Central)", Tectonophysics, v. 177 (1990) p. 125-138. [DOI:10.1016/0040-1951(90)90277-F]
  23. [12] Allen M.B., Kheirkhah M., Emami M.H., Jones S.J., "Right-lateral shear across Iran and kinematic change in the Arabia-Eurasia collision zone", Geophysical Journal International, v. 184, (2011) p. 555-574. [DOI:10.1111/j.1365-246X.2010.04874.x]
  24. [12] Allen M.B., Kheirkhah M., Emami M.H., Jones S.J., "Right-lateral shear across Iran and kinematic change in the Arabia-Eurasia collision zone", Geophysical Journal International, v. 184, (2011) p. 555-574. [DOI:10.1111/j.1365-246X.2010.04874.x]
  25. [13] Morley C.K., Kongwung B., Julapour A., Abdolghafourian M., Hajian M., Waples D., Warren J., Otterdoom H., Srisuriyon K., Kazemi H., "Structural development of a major late Cenozoic basin and transpressional belt in central Iran", The Central Basin in The Qom- saveh area. Geosphere, Volume 5 (2009) 4:325-362. [DOI:10.1130/GES00223.1]
  26. [13] Morley C.K., Kongwung B., Julapour A., Abdolghafourian M., Hajian M., Waples D., Warren J., Otterdoom H., Srisuriyon K., Kazemi H., "Structural development of a major late Cenozoic basin and transpressional belt in central Iran", The Central Basin in The Qom- saveh area. Geosphere, Volume 5 (2009) 4:325-362. [DOI:10.1130/GES00223.1]
  27. [14] Emami M.H., "Géologie de la région de Qom-Aran (Iran): Contribution a l'étude dynamique et géochimique du volcanisme Tertiaire de l'Iran Central": Ph.D., Thèse, Univ., Grenoble, France, (1981) 489pp.
  28. [14] Emami M.H., "Géologie de la région de Qom-Aran (Iran): Contribution a l'étude dynamique et géochimique du volcanisme Tertiaire de l'Iran Central": Ph.D., Thèse, Univ., Grenoble, France, (1981) 489pp.
  29. [15] Roozbeh Kargar.s, Movahedi.M, "Gold Exploration Report in 1: 100000 Salafchegan Qom Zavarian Area", Geological Survey of Iran (2010).
  30. [15] Roozbeh Kargar.s, Movahedi.M, "Gold Exploration Report in 1: 100000 Salafchegan Qom Zavarian Area", Geological Survey of Iran (2010).
  31. [16] Hart C.J.R., "reduced intrusion-related gold systems, in Goodfellow, W.D., ed., Mineral deposits of Canada", A Synthesis of Major Deposit Types, District Metallogeny (2007).
  32. [16] Hart C.J.R., "reduced intrusion-related gold systems, in Goodfellow, W.D., ed., Mineral deposits of Canada", A Synthesis of Major Deposit Types, District Metallogeny (2007).
  33. [17] Chiu H.Y., Chung S.L., Zarrinkoub M.H., Mohammadi S.S., Khatib M.M., Iizuka Y., "Zircon U-Pb age constraints from Iran on the magmatic evolution related to Neotethyan subduction and Zagros orogeny", Lithos, 162, (2013) pp.70-87. [DOI:10.1016/j.lithos.2013.01.006]
  34. [17] Chiu H.Y., Chung S.L., Zarrinkoub M.H., Mohammadi S.S., Khatib M.M., Iizuka Y., "Zircon U-Pb age constraints from Iran on the magmatic evolution related to Neotethyan subduction and Zagros orogeny", Lithos, 162, (2013) pp.70-87. [DOI:10.1016/j.lithos.2013.01.006]
  35. [18] Ayati F., Yavuz F., Asadi H.H., Richards J.P., Jourdan F., "Petrology and geochemistry of calc-alkaline volcanic and subvolcanic rocks, Dalli porphyry copper-gold deposit, Markazi Province, Iran", International Geology Review, v. 55, (2013) p. 158-184. [DOI:10.1080/00206814.2012.689640]
  36. [18] Ayati F., Yavuz F., Asadi H.H., Richards J.P., Jourdan F., "Petrology and geochemistry of calc-alkaline volcanic and subvolcanic rocks, Dalli porphyry copper-gold deposit, Markazi Province, Iran", International Geology Review, v. 55, (2013) p. 158-184. [DOI:10.1080/00206814.2012.689640]
  37. [19] Richards J.P., Wilkinson D., Ullrich T., "Geology of the Sari Gunay epithermal gold deposit, northwest Iran". Economic geology, 101 (2006) 1455-1496. [DOI:10.2113/gsecongeo.101.8.1455]
  38. [19] Richards J.P., Wilkinson D., Ullrich T., "Geology of the Sari Gunay epithermal gold deposit, northwest Iran". Economic geology, 101 (2006) 1455-1496. [DOI:10.2113/gsecongeo.101.8.1455]
  39. [20] Wilkinson D., "the geological summary of the Sari Gunay gold project", Report of Zar Kuh Mining Company (2005).
  40. [20] Wilkinson D., "the geological summary of the Sari Gunay gold project", Report of Zar Kuh Mining Company (2005).
  41. [21] Boccaletti M., Innoncenti F., Manetti P., Mazzuoli R., Motamed A., Paquare A., Radicati de Brozolo F., Amin Sobhani E., 'Neogene and Quaternary volcanism of the Bijar area (western Iran)', Bull. Volcanol, v. 40-42 (1976) p. 121-135. [DOI:10.1007/BF02599857]
  42. [21] Boccaletti M., Innoncenti F., Manetti P., Mazzuoli R., Motamed A., Paquare A., Radicati de Brozolo F., Amin Sobhani E., 'Neogene and Quaternary volcanism of the Bijar area (western Iran)', Bull. Volcanol, v. 40-42 (1976) p. 121-135. [DOI:10.1007/BF02599857]
  43. [22] Moinevaziri H., Volcanisme Tértiaire et Quatérnaire en Iran. Thèse d' Etat, Paris-Sud Orsay, 290 pp.
  44. [22] Moinevaziri H., Volcanisme Tértiaire et Quatérnaire en Iran. Thèse d' Etat, Paris-Sud Orsay, 290 pp.
  45. [23] Hassanzadeh T., Heidari S.M., Qalamqash J., Mohebbi A., "Comparison of alteration areas in Sari Gunnay and Zavarian epithermal gold deposits, by ASTER satellite image processing". Proceedings of the 38th Conference on Earth Sciences, Geological Survey and Mineral Exploration (2019).
  46. [23] Hassanzadeh T., Heidari S.M., Qalamqash J., Mohebbi A., "Comparison of alteration areas in Sari Gunnay and Zavarian epithermal gold deposits, by ASTER satellite image processing". Proceedings of the 38th Conference on Earth Sciences, Geological Survey and Mineral Exploration (2019).
  47. [24] Petersen U., Vidal C. E., "Magmatic and tectonic controls on the nature and distribution of copper deposits in Peru. Andean copper deposits: New discoveries, mineralization, styles and metallogeny: Society of Economic Geologists Special Publication, (5) (1996) 1-18.‏
  48. [24] Petersen U., Vidal C. E., "Magmatic and tectonic controls on the nature and distribution of copper deposits in Peru. Andean copper deposits: New discoveries, mineralization, styles and metallogeny: Society of Economic Geologists Special Publication, (5) (1996) 1-18.‏
  49. [25] Le Bas, M. J., Le Maitre R. W., Streckeisen A., Zanettin B., "A chemical classification of volcanic rocks based on total Alkali-Silica content": Journal of Petrology, v. 27 (1986) p. 745-750 [DOI:10.1093/petrology/27.3.745]
  50. [25] Le Bas, M. J., Le Maitre R. W., Streckeisen A., Zanettin B., "A chemical classification of volcanic rocks based on total Alkali-Silica content": Journal of Petrology, v. 27 (1986) p. 745-750 [DOI:10.1093/petrology/27.3.745]
  51. [26] Peccerillo A., Taylor S. R., "Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey.Contributions to Mineralogy and Petrology": 58 (1976) 63-81. [DOI:10.1007/BF00384745]
  52. [26] Peccerillo A., Taylor S. R., "Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey.Contributions to Mineralogy and Petrology": 58 (1976) 63-81. [DOI:10.1007/BF00384745]
  53. [27] Bissig T., Clark A.H., Lee J.K.W., Quadt A.V., "Petrogenetic and metallogenetic responses to Miocene slab flattening: new constraints from the El Indio-Pascua Au-Ag-Cu belt, Chile/ Argentina. Min Deposit, v. 38 (2003) p. 844-862. [DOI:10.1007/s00126-003-0375-y]
  54. [27] Bissig T., Clark A.H., Lee J.K.W., Quadt A.V., "Petrogenetic and metallogenetic responses to Miocene slab flattening: new constraints from the El Indio-Pascua Au-Ag-Cu belt, Chile/ Argentina. Min Deposit, v. 38 (2003) p. 844-862. [DOI:10.1007/s00126-003-0375-y]
  55. [28] Waight T.E., Weaver S.D., Muir R.J., "The Hohonu batholith the north Westland, New Zealand: granitoid compositions controlled by source H2O contents and generated during tectonic transition", Contrib Mineral Petrol., v. 130, (1998) p. 225-239. [DOI:10.1007/s004100050362]
  56. [28] Waight T.E., Weaver S.D., Muir R.J., "The Hohonu batholith the north Westland, New Zealand: granitoid compositions controlled by source H2O contents and generated during tectonic transition", Contrib Mineral Petrol., v. 130, (1998) p. 225-239. [DOI:10.1007/s004100050362]
  57. [29] Nakamura N., "Determination of REE, Ba, Fe, Mg, Na, and K in carbonaceous and ordinary chondrites". Geochim. Acta, 38 (1974) 757- 775. [DOI:10.1016/0016-7037(74)90149-5]
  58. [29] Nakamura N., "Determination of REE, Ba, Fe, Mg, Na, and K in carbonaceous and ordinary chondrites". Geochim. Acta, 38 (1974) 757- 775. [DOI:10.1016/0016-7037(74)90149-5]
  59. [30] Lang J.R., Titley S.R., "Isotopic and geochemical characteristics of Laramide magmatic systems in Arizona and implications for the genesis of porphyry copper deposits": Economic Geology, v. 93, (1998) p. 138-170. [DOI:10.2113/gsecongeo.93.2.138]
  60. [30] Lang J.R., Titley S.R., "Isotopic and geochemical characteristics of Laramide magmatic systems in Arizona and implications for the genesis of porphyry copper deposits": Economic Geology, v. 93, (1998) p. 138-170. [DOI:10.2113/gsecongeo.93.2.138]
  61. [31] Hanson G.N., "Rare earth elements in petrogenetic studies of igneous systems", Annual Review of Earth Planetary Sciences, v. 8 (1980) p. 371-406. [DOI:10.1146/annurev.ea.08.050180.002103]
  62. [31] Hanson G.N., "Rare earth elements in petrogenetic studies of igneous systems", Annual Review of Earth Planetary Sciences, v. 8 (1980) p. 371-406. [DOI:10.1146/annurev.ea.08.050180.002103]

فایل ها

سابقه مقاله

  • تاریخ دریافت: 04 اسفند 1399
  • تاریخ بازنگری: 25 فروردین 1400
  • تاریخ پذیرش: 08 اردیبهشت 1400

هم رسانی

ارجاع به این مقاله

آمار