کانی‌شناسی و زمین‌شیمی کانی‌سازی طلا و مس سلطان انوچ، ملایر، غرب ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه زمین شناسی، دانشکده علوم زمین، دانشگاه شهید بهشتی تهران

2 گروه زمین شناسی، دانشکده زمین شناسی، دانشگاه تهران

چکیده

رویداد کانه­زایی مس و طلا در گستره سلطان انوچ در جنوب­غربی ملایر، بخشی از پهنه سنندج - سیرجان است. از مهم­ترین واحدهای سنگی منطقه مورد بررسی می­توان به شیست، سنگ آهک و توده­های نفوذی اسیدی تا حدواسط اشاره کرد. دگرسانی­های غالب منطقه دگرسانی­های پروپلیتی، سریسیتی، آرژیلیک و هماتیتی هستند، که بصورت محلی و در ارتباط با تشکیل اسکارن گسترش دارند. کانی­های کوارتز، اپیدوت، هماتیت، مگنتیت، پیریت و مالاکیت کانی­های شاخص دیده شده در مقاطع میکروسکوپی هستند. کانی­سازی طلا و مس به صورت رگه­ای و پرکننده­ فضای خالی دیده می­شود. در نمونه­های برداشت شده، بیشترین مقدار طلا 675 میلی گرم در تن و بیشترین مقدار مس 37200 گرم در تن است. درست در مرز توده نفوذی با سنگ­های کربناتی، آثار گسترده­ای از واکنش­های شیمیایی دگرگونی کناری سامانه باز دیده شده است. توده­های نفوذی در گستره­ی مشترک گرانیت­های قوس آتشفشانی و همزمان با برخورد قرار دارند. از این رو، فعالیت ماگمایی منطقه در ارتباط با محیط فرورانشی است.

کلیدواژه‌ها

عنوان مقاله [English]

Mineralogy and geochemistry of gold and copper mineralization, Sultan Anouch, Malayer, West Iran

نویسندگان [English]

  • Hamid Rostamipour 1
  • mehrdad behzadi 1
  • ramin shahbazi 1
  • mohammad amini 2
1 Department of Geology, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran.
2 Department of Geology, Faculty of Sciences, University of Tehran, Tehran, Iran
چکیده [English]

The occurrence of copper and gold mineralization in Sultan Anouch area in the southwest of Malayer is a part of Sanandaj-Sirjan zone. The most important rock units in the studied area are schist, limestone and acidic to medium intrusive stocks. The dominant alterations in the area are propylitic, sericite, argillic and hematite, which are locally connected to the formation of skarn. Quartz, epidote, hematite, magnetite, pyrite and malachite minerals are the main ore minerals. The mineralization of gold and copper can be seen as streaks and filling the empty space. In the samples, the highest amount of gold is 0.67 grams per ton and the highest amount of copper is 37200 grams per ton. In the immediate vicinity of the intrusive mass with carbonate rocks, extensive traces of chemical reactions of open system neighborhood transformation have been observed. The intrusive masses are located in the most parts of the volcanic arc granites and at the same time as the impact, so the magmatism of the area is related to the subduction environment.

کلیدواژه‌ها [English]

  • Sultan Anouch skarn
  • copper-gold mineralization
  • Malayer
  • west of Iran

مراجع

  1. [1] Mohajjel M., Fergusson C. L., Sahandi M. R., "Cretaceous-Tertiary convergence and continental collision, Sanandaj-Sirjan Zone", western Iran. Journal (2003). [DOI:10.1016/S1367-9120(02)00035-4]
  2. [1] Mohajjel M., Fergusson C. L., Sahandi M. R., "Cretaceous-Tertiary convergence and continental collision, Sanandaj-Sirjan Zone", western Iran. Journal (2003). [DOI:10.1016/S1367-9120(02)00035-4]
  3. [2] Mohajjel M., Fergusson C. L., "Jurassic to Cenozoic tectonics of the Zagros orogen in northwestern Iran". International Geology Review 56(3) (2014) 263-287. [DOI:10.1080/00206814.2013.853919]
  4. [2] Mohajjel M., Fergusson C. L., "Jurassic to Cenozoic tectonics of the Zagros orogen in northwestern Iran". International Geology Review 56(3) (2014) 263-287. [DOI:10.1080/00206814.2013.853919]
  5. [3] Azizi H., Moinevaziri H., "Review of the tectonic setting of Cretaceous to Quaternary volcanism in northwestern Iran", Journal of Geodynamics 47 (2009) 167-179. [DOI:10.1016/j.jog.2008.12.002]
  6. [3] Azizi H., Moinevaziri H., "Review of the tectonic setting of Cretaceous to Quaternary volcanism in northwestern Iran", Journal of Geodynamics 47 (2009) 167-179. [DOI:10.1016/j.jog.2008.12.002]
  7. [4] Movahedi M., Yazdi M., Behzadi M., "Temperature-barometric and chemistry of garnet and pyroxene minerals of Ashvand Nahavand skarn deposit, west of Iran", Iranian Journal of Crystallography and Mineralogy, (2022) 3-14. [DOI:10.52547/ijcm.30.1.3]
  8. [4] Movahedi M., Yazdi M., Behzadi M., "Temperature-barometric and chemistry of garnet and pyroxene minerals of Ashvand Nahavand skarn deposit, west of Iran", Iranian Journal of Crystallography and Mineralogy, (2022) 3-14. [DOI:10.52547/ijcm.30.1.3]
  9. [5] Movahedi M., Yazdi M., Behzadi M., "Determining the mineralization conditions based on the data of fluid inclusion in the Skarn Ashvand deposit, west of Iran", Journal of Earth Sciences, (2021) 111-122.
  10. [5] Movahedi M., Yazdi M., Behzadi M., "Determining the mineralization conditions based on the data of fluid inclusion in the Skarn Ashvand deposit, west of Iran", Journal of Earth Sciences, (2021) 111-122.
  11. [6] Arian M., "Physiographic-Tectonic Zoning of Iran's Sedimentary Basins". Journal of Geology, 3(2013) 169-177. [DOI:10.4236/ojg.2013.33020]
  12. [6] Arian M., "Physiographic-Tectonic Zoning of Iran's Sedimentary Basins". Journal of Geology, 3(2013) 169-177. [DOI:10.4236/ojg.2013.33020]
  13. [7] Zamanian H., Ahmadnejad F., Karami A., Taghipour B., "Petrology, geochemistry and skarn formation potential of Samen granitoid mass (southwest of Malair, Hamedan)", Quarterly Journal of Geology of Iran, (2018) 51-81.
  14. [7] Zamanian H., Ahmadnejad F., Karami A., Taghipour B., "Petrology, geochemistry and skarn formation potential of Samen granitoid mass (southwest of Malair, Hamedan)", Quarterly Journal of Geology of Iran, (2018) 51-81.
  15. [8] Jafarian M., Zamani pedram M., "1/100000 Geological map of Malayer", Geological Survey and Mineral Exploration of Iran (1887).
  16. [8] Jafarian M., Zamani pedram M., "1/100000 Geological map of Malayer", Geological Survey and Mineral Exploration of Iran (1887).
  17. [9] Whitney D., Evans B. "Abbreviations for names of rock-forming minerals", American Mineralogist, Volume 95 (2010)185-187. [DOI:10.2138/am.2010.3371]
  18. [9] Whitney D., Evans B. "Abbreviations for names of rock-forming minerals", American Mineralogist, Volume 95 (2010)185-187. [DOI:10.2138/am.2010.3371]
  19. [10] Sahebi khadar J., Malekzadeh Shafaroodi A., Mazloomi Bajestani A., "Mineralogy, structure, texture and geochemistry in Fadihah copper-gold mineral occurrence, northwest of Torbat Haydaria", Iranian Journal of Crystallography and Mineralogy, (2022) 57-74. [DOI:10.52547/ijcm.30.1.57]
  20. [10] Sahebi khadar J., Malekzadeh Shafaroodi A., Mazloomi Bajestani A., "Mineralogy, structure, texture and geochemistry in Fadihah copper-gold mineral occurrence, northwest of Torbat Haydaria", Iranian Journal of Crystallography and Mineralogy, (2022) 57-74. [DOI:10.52547/ijcm.30.1.57]
  21. [11] Ashbak P., Malekzaadeh shafaroodi A., Karimpour M., "Investigating gold ± copper mineralization in Jalmabadan region (northwest of Sabzevar) based on mineralogical evidence of alteration and mineralization zones and geochemistry", Iranian Journal of Crystallography and Mineralogy, (2018) 31-46. [DOI:10.29252/ijcm.26.1.31]
  22. [11] Ashbak P., Malekzaadeh shafaroodi A., Karimpour M., "Investigating gold ± copper mineralization in Jalmabadan region (northwest of Sabzevar) based on mineralogical evidence of alteration and mineralization zones and geochemistry", Iranian Journal of Crystallography and Mineralogy, (2018) 31-46. [DOI:10.29252/ijcm.26.1.31]
  23. [12] Pearce J. A., Harris N.B., Tindle A.G., "Trace element discrimination diagrams. for the tectonic interpretation of granitic rocks", Journal Petrology, 25(1984) 956-983. [DOI:10.1093/petrology/25.4.956]
  24. [12] Pearce J. A., Harris N.B., Tindle A.G., "Trace element discrimination diagrams. for the tectonic interpretation of granitic rocks", Journal Petrology, 25(1984) 956-983. [DOI:10.1093/petrology/25.4.956]
  25. [13] Machado A., Lima E. F., Chemale J. F., Morta D., Oteiza O., Almeida D. P. M., Figueiredo A. M. G., Alexandre F. M., Urrutia J. L., "Geochemistry constraints of Mesozoic-Cenozoic calcalkaline magmatism in the south Shetland arc, Antarctica", Journal of South American Earth Sciences 18(3) (2005) 407-425. [DOI:10.1016/j.jsames.2004.11.011]
  26. [13] Machado A., Lima E. F., Chemale J. F., Morta D., Oteiza O., Almeida D. P. M., Figueiredo A. M. G., Alexandre F. M., Urrutia J. L., "Geochemistry constraints of Mesozoic-Cenozoic calcalkaline magmatism in the south Shetland arc, Antarctica", Journal of South American Earth Sciences 18(3) (2005) 407-425. [DOI:10.1016/j.jsames.2004.11.011]
  27. [14] Wilson M., "Igneous Petrogenesis: A Global Tectonic Approach", Unwin Hyman, London, 466 (1989). [DOI:10.1007/978-1-4020-6788-4]
  28. [14] Wilson M., "Igneous Petrogenesis: A Global Tectonic Approach", Unwin Hyman, London, 466 (1989). [DOI:10.1007/978-1-4020-6788-4]
  29. [15] Girardi J. D., Patchett P. J., Ducea M. N., Gehrels G. E., Cecil M. R., Rusmore M. E., Woodsworth G. J., Pearson D. M., Manthei C., Wetmore P., Elemental and isotopic evidence for granitoid genesis from deep-seated sources in the Coast mountains batholith, British Columbia". Journal of Petrology 53 (7) (2012) 1505-1536. [DOI:10.1093/petrology/egs024]
  30. [15] Girardi J. D., Patchett P. J., Ducea M. N., Gehrels G. E., Cecil M. R., Rusmore M. E., Woodsworth G. J., Pearson D. M., Manthei C., Wetmore P., Elemental and isotopic evidence for granitoid genesis from deep-seated sources in the Coast mountains batholith, British Columbia". Journal of Petrology 53 (7) (2012) 1505-1536. [DOI:10.1093/petrology/egs024]
  31. [16] McDonough W.F., Sun S.S., "The Composition of the Earth". Chemical Geology, 120 (1995) 223-253. [DOI:10.1016/0009-2541(94)00140-4]
  32. [16] McDonough W.F., Sun S.S., "The Composition of the Earth". Chemical Geology, 120 (1995) 223-253. [DOI:10.1016/0009-2541(94)00140-4]
  33. [17] Thampson A.B., "Mogmatism of The Bristish Tertiary Volcanic Province. Scott". Journal of Geology, 18 (1982) 50-107. [DOI:10.1144/sjg18010049]
  34. [17] Thampson A.B., "Mogmatism of The Bristish Tertiary Volcanic Province. Scott". Journal of Geology, 18 (1982) 50-107. [DOI:10.1144/sjg18010049]
  35. [18] Nakamura N., "Determination of REE, Ba, Fe, Mg, Na and K incarbonaceous and ordinary chondrites". Geochim. Cosmochim. Acta 38 (1974) 757-775. [DOI:10.1016/0016-7037(74)90149-5]
  36. [18] Nakamura N., "Determination of REE, Ba, Fe, Mg, Na and K incarbonaceous and ordinary chondrites". Geochim. Cosmochim. Acta 38 (1974) 757-775. [DOI:10.1016/0016-7037(74)90149-5]
  37. [19] Zamanian H., Karami A., Zarei Sahamieh R., "A geochemical comparison of Saman granodiorite with the skarn granitoids of the world in terms of mineralization potential", The second international specialized congress of Earth Sciences, (2015).
  38. [19] Zamanian H., Karami A., Zarei Sahamieh R., "A geochemical comparison of Saman granodiorite with the skarn granitoids of the world in terms of mineralization potential", The second international specialized congress of Earth Sciences, (2015).

فایل ها

سابقه مقاله

  • تاریخ دریافت: 04 آذر 1402
  • تاریخ بازنگری: 26 دی 1402
  • تاریخ پذیرش: 28 بهمن 1402

هم رسانی

ارجاع به این مقاله

آمار