کانی‌سازی، زمین‌شیمی و ریزدماسنجی میانبارهای سیال در منطقه اکتشافی سیاجک، جنوب زاهدان، ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشگاه فردوسی مشهد

چکیده

منطقه سیاجک در پهنه جوش‌خورده سیستان و در جنوب زاهدان قرار دارد. واحدهای سنگی منطقه شامل واحدهای دگرگونی، رسوبی و توده‌های نفوذی است. واحد آمفیبولیت بیشترین گسترش را دارد. مهم‌ترین دگرسانی­های منطقه سیلیسی و پروپلیتی هستند. کانی­سازی در قالب رگچه کوارتز+کالکوپیریت+پیریت و رگه کوارتز+گوتیت در سنگ میزبان آمفیبولیت با راستای شمال غربی- جنوب شرقی و شرقی- غربی دیده می­شود. کالکوپیریت و پیریت کانی­های اولیه و کوولیت، کالکوسیت، مالاکیت، آزوریت، هماتیت و گوتیت کانی­های ثانویه هستند. براساس نتایج تجزیه زمین­شیمی، بالاترین مقدار مس 2/3 درصد، سرب و روی به ترتیب 218 و 150 گرم در  تن و طلا 174 میلی­گرم در تن است. بر اساس بررسی‌ها، میانبارهای سیال دارای دمای همگن شدگی 300-163 درجه سانتی‌گراد هستند و از محلولی شامل NaCl با درجه شوری 5/13-10 درصد وزنی تشکیل شده­اند. کاهش دما مهم‌ترین عامل ته‌نشست کانی‌های سولفیدی است. بر پایه دما و شوری محلول کانه­دار، کنترل ساختاری کانی­سازی، نوع دگرسانی و گسترش آن و کانی­شناسی ساده، منطقه سیاجک از نوع مس رگه­ای است.     

کلیدواژه‌ها

عنوان مقاله [English]

Mineralization, geochemistry and microthermometry of Fluid inclusion in Siajak prospect area, south of Zahedan, Iran

نویسندگان [English]

  • Mohsen Heybatnejad
  • Azadeh Malekzadeh Shafaroudi
  • Samaneh Nadermezerji
چکیده [English]

Siajak area is located within the Sistan suture zone in the south Zahedan. The rock units of the area include metamorphic, sedimentary and intrusive. The amphibolite unit is the most lithologic unit present in this area. The most important alterations in the area are silicification and propylitic alterations. Mineralization is seen with NW-SE and E-W trending in the amohibolite host rock as quartzite + chalcopyrite + pyrite veinlet and quartz + goethite vein. The chalcopyrite and pyrite are primery minerals and covellite, chalcocite, malachite, azurite, hematite and gotite are secondary. Based on the results of geochemical analysis, the highest amount of copper is 3.2%, lead and zinc are 218 and 150 ppm and gold is 174 ppb. Based on the fluid inclusion microthermametry, the homogenization temperature is 163-300 °C and salinity is 10-13.5 wt.% equivalent NaCl. Temperature decreasing is the most important factor for deposition of sulfide minerals. Based on the temperature and salinity of the ore-fluid, the structural control of the mineralization, the type of alteration and its development, and simple mineralogy, the Siajak area is copper vein type.
 

کلیدواژه‌ها [English]

  • Mineralization
  • Geochemistry
  • fluids inclusion
  • Siajak
  • Sistan suture Zone

مراجع

  1. [1] Tirrul R., Bell IR., Griffis R.J., Camp VE, " The Sistan suture zone of eastern Iran", Geological Society of America Bulletin 94 (1983) 134-150.

    https://doi.org/10.1130/0016-7606(1983)942.0.CO;2 [DOI:10.1130/0016-7606(1983)942.0.CO;2]
  2. [1] Tirrul R., Bell IR., Griffis R.J., Camp VE, " The Sistan suture zone of eastern Iran", Geological Society of America Bulletin 94 (1983) 134-150.

    https://doi.org/10.1130/0016-7606(1983)942.0.CO;2 [DOI:10.1130/0016-7606(1983)942.0.CO;2]
  3. [2] Camp V. E., Griffis R. J., "Character, genesis and tectonic setting of igneous rocks in the Sistan suture zone", eastern Iran. Lithos 15 (1982) 221-239. [DOI:10.1016/0024-4937(82)90014-7]
  4. [2] Camp V. E., Griffis R. J., "Character, genesis and tectonic setting of igneous rocks in the Sistan suture zone", eastern Iran. Lithos 15 (1982) 221-239. [DOI:10.1016/0024-4937(82)90014-7]
  5. [3] Aghanabati S. A., "Geology of Iran (in Persian)", Geological Survey of Iran, Tehran (2004) 586p.
  6. [3] Aghanabati S. A., "Geology of Iran (in Persian)", Geological Survey of Iran, Tehran (2004) 586p.
  7. [4] Maanijo M., " Geochemistry, Understanding the Origin of Mineralizing Fluids and the Formation of Chehel koureh Copper Ore (Northwest of Zahedan) (in Persian)", PhD Thesis, Shahid Beheshti University (2007).
  8. [4] Maanijo M., " Geochemistry, Understanding the Origin of Mineralizing Fluids and the Formation of Chehel koureh Copper Ore (Northwest of Zahedan) (in Persian)", PhD Thesis, Shahid Beheshti University (2007).
  9. [5] Niknam Sh., Bomeri M., Biyabangard H., Nahtayi, A., "Identification of alteration zones in Lonca region using telemetry methods (in Persian)", Iranian Economic Geological Society Conference (2015).
  10. [5] Niknam Sh., Bomeri M., Biyabangard H., Nahtayi, A., "Identification of alteration zones in Lonca region using telemetry methods (in Persian)", Iranian Economic Geological Society Conference (2015).
  11. [6] Mokhtari Z., Boumari M., Bagheri S., " Investigation of porphyry gold and copper mineralization using petrographic evidence and alteration in Siah Jangal region, north of Taftan mountain (in Persian)", southeast of Iran, 6th conference of Iranian Economic Geological Society (2014) 32-56.
  12. [6] Mokhtari Z., Boumari M., Bagheri S., " Investigation of porphyry gold and copper mineralization using petrographic evidence and alteration in Siah Jangal region, north of Taftan mountain (in Persian)", southeast of Iran, 6th conference of Iranian Economic Geological Society (2014) 32-56.
  13. [7] Noura A., " Alteration Zones and Economic Geology of Kharestan Region in Relation to Copper and Gold Mineralization (in Persian)", M.Sc. Thesis, Azad University (2007).
  14. [7] Noura A., " Alteration Zones and Economic Geology of Kharestan Region in Relation to Copper and Gold Mineralization (in Persian)", M.Sc. Thesis, Azad University (2007).
  15. [8] Moradi R., bomeri M., Bagheri S., Zahedi A., "Determination of physicochemical conditions and controlling factors of mineralization using mineralogy, paragenetic relations and fluid loads in Stibnite-Shorchah gold deposit, southeast of Zahedan (in Persian)", Iranian Journal of Crystallography and Mineralogy 23 (2015) 121-134.
  16. [8] Moradi R., bomeri M., Bagheri S., Zahedi A., "Determination of physicochemical conditions and controlling factors of mineralization using mineralogy, paragenetic relations and fluid loads in Stibnite-Shorchah gold deposit, southeast of Zahedan (in Persian)", Iranian Journal of Crystallography and Mineralogy 23 (2015) 121-134.
  17. [9] Delavari M., Amini S., Sakani A., "Geochemistry and tectonic-magmatic origin of Tertiary igneous rocks in the east and northeast of Nehbandan, eastern Iran (in Persian)", Journal of Earth Sciences 90 (2013) 98-121.
  18. [9] Delavari M., Amini S., Sakani A., "Geochemistry and tectonic-magmatic origin of Tertiary igneous rocks in the east and northeast of Nehbandan, eastern Iran (in Persian)", Journal of Earth Sciences 90 (2013) 98-121.
  19. [10] Mirblochezhi H., Biabangard H., Bomeri M., " Petrology, geochemistry and origin of granite rocks of Garagheh mountain, northwest of Zahedan (in Persian)", Iranian Journal of Crystallography and Mineralogy 29 (2021) 237-248. [DOI:10.52547/ijcm.29.1.237]
  20. [10] Mirblochezhi H., Biabangard H., Bomeri M., " Petrology, geochemistry and origin of granite rocks of Garagheh mountain, northwest of Zahedan (in Persian)", Iranian Journal of Crystallography and Mineralogy 29 (2021) 237-248. [DOI:10.52547/ijcm.29.1.237]
  21. [11] Moradi R., bomeri M., Bagheri, S., "Investigation of Apatite Chemistry in Azarin Lar Complex, North of Zahedan (in Persian)", Iranian Journal of Crystallography and Mineralogy 27 (2019) 281-298. [DOI:10.29252/ijcm.27.2.281]
  22. [11] Moradi R., bomeri M., Bagheri, S., "Investigation of Apatite Chemistry in Azarin Lar Complex, North of Zahedan (in Persian)", Iranian Journal of Crystallography and Mineralogy 27 (2019) 281-298. [DOI:10.29252/ijcm.27.2.281]
  23. [12] Berberian, M., "Iranian Geological Survey (in Persian)", Ministry of Mines and Metals Publications, Tehran (1981) 376p.
  24. [12] Berberian, M., "Iranian Geological Survey (in Persian)", Ministry of Mines and Metals Publications, Tehran (1981) 376p.
  25. [13] Zarrinkoub M. H., Pang K. N., Chung S. L., Khatib M. M., Mohammadi S. S., Chiu H. Y., Lee, H. Y., " Zircon U-Pb age and geochemical constraints on the origin of the Birjand ophiolite, Sistan suture zone, eastern Iran", Lithos 154 (2012) 392-405. [DOI:10.1016/j.lithos.2012.08.007]
  26. [13] Zarrinkoub M. H., Pang K. N., Chung S. L., Khatib M. M., Mohammadi S. S., Chiu H. Y., Lee, H. Y., " Zircon U-Pb age and geochemical constraints on the origin of the Birjand ophiolite, Sistan suture zone, eastern Iran", Lithos 154 (2012) 392-405. [DOI:10.1016/j.lithos.2012.08.007]
  27. [14] Berberian M., "The southern Caspian: a compressional depression floored by a trapped, modified oceanic crust", Canadian Journal of Earth Sciences 20 (1983) 163-183. [DOI:10.1139/e83-015]
  28. [14] Berberian M., "The southern Caspian: a compressional depression floored by a trapped, modified oceanic crust", Canadian Journal of Earth Sciences 20 (1983) 163-183. [DOI:10.1139/e83-015]
  29. [15] Alavi Naini M. Lotfi, M., " Geological Nehbandan Map 1:100000. No. E 8053. Geological Survey of Iran, Tehran, Iran", Semat Publicher, Tehran (1991) 231p.
  30. [15] Alavi Naini M. Lotfi, M., " Geological Nehbandan Map 1:100000. No. E 8053. Geological Survey of Iran, Tehran, Iran", Semat Publicher, Tehran (1991) 231p.
  31. [16] Reyre D., Mohafez, S., "A first contribution of the NIOC-ERAP agreements to the knowledge of Iranian geology", Paris: Editions Technip (1972) 58p.
  32. [16] Reyre D., Mohafez, S., "A first contribution of the NIOC-ERAP agreements to the knowledge of Iranian geology", Paris: Editions Technip (1972) 58p.
  33. [17] Steele-MacInnis M., Lecumberri-Sanchez P., & Bodnar R. J., " Short note: HokieFlincs_H2O-NaCl: A Microsoft Excel spreadsheet for interpreting microthermometric data from fluid inclusions based on the PVTX properties of H2O-NaCl", Computers & Geosciences, 49 (2012) 334-337. [DOI:10.1016/j.cageo.2012.01.022]
  34. [17] Steele-MacInnis M., Lecumberri-Sanchez P., & Bodnar R. J., " Short note: HokieFlincs_H2O-NaCl: A Microsoft Excel spreadsheet for interpreting microthermometric data from fluid inclusions based on the PVTX properties of H2O-NaCl", Computers & Geosciences, 49 (2012) 334-337. [DOI:10.1016/j.cageo.2012.01.022]
  35. [18] Lecumberri-Sanchez P., Steele-MacInnis M., Bodnar R. J., "A numerical model to estimate trapping conditions of fluid inclusions that homogenize by halite disappearance", Geochimica et Cosmochimica
  36. [18] Lecumberri-Sanchez P., Steele-MacInnis M., Bodnar R. J., "A numerical model to estimate trapping conditions of fluid inclusions that homogenize by halite disappearance", Geochimica et Cosmochimica
  37. Acta 92 (2012) 14-22. [DOI:10.1016/j.gca.2012.05.044]
  38. Acta 92 (2012) 14-22. [DOI:10.1016/j.gca.2012.05.044]
  39. [19] Whitney, D.L., Evans, B.W., "Abbreviations for names of rock-forming minerals", American Mineralogist 95 (2010) 185-187. [DOI:10.2138/am.2010.3371]
  40. [19] Whitney, D.L., Evans, B.W., "Abbreviations for names of rock-forming minerals", American Mineralogist 95 (2010) 185-187. [DOI:10.2138/am.2010.3371]
  41. [20] Hajalilou B., Aghazadeh, M., "Geological, Alteration and Mineralization Characteristics of Ali Javad Porphyry Cu-Au Deposit, Arasbaran Zone, NW Iran", Open Journal of Geology 6 (2016) 859-874. [DOI:10.4236/ojg.2016.68066]
  42. [20] Hajalilou B., Aghazadeh, M., "Geological, Alteration and Mineralization Characteristics of Ali Javad Porphyry Cu-Au Deposit, Arasbaran Zone, NW Iran", Open Journal of Geology 6 (2016) 859-874. [DOI:10.4236/ojg.2016.68066]
  43. [21] Shepherd R. G., "Regression analysis of river profiles", The Journal of Geology 93 (1985) 377-384. [DOI:10.1086/628959]
  44. [21] Shepherd R. G., "Regression analysis of river profiles", The Journal of Geology 93 (1985) 377-384. [DOI:10.1086/628959]
  45. [22] Seward T. M., "Thio complexes of gold and the transport of gold in hydrothermal ore solutions", Geochimica et Cosmochimica Acta 37 (1973) 379-399. [DOI:10.1016/0016-7037(73)90207-X]
  46. [22] Seward T. M., "Thio complexes of gold and the transport of gold in hydrothermal ore solutions", Geochimica et Cosmochimica Acta 37 (1973) 379-399. [DOI:10.1016/0016-7037(73)90207-X]
  47. [23] Bodnar R. J., "A method of calculating fluid inclusion volumes based on vapor bubble diameters and PVTX properties of inclusion fluids", Economic Geology 78 (1983) 535-542. [DOI:10.2113/gsecongeo.78.3.535]
  48. [23] Bodnar R. J., "A method of calculating fluid inclusion volumes based on vapor bubble diameters and PVTX properties of inclusion fluids", Economic Geology 78 (1983) 535-542. [DOI:10.2113/gsecongeo.78.3.535]
  49. [24] Wilkinson J.J., "Fluid inclusions in hydrothermal ore deposits", Lithos 55(2001) 229-272 [DOI:10.1016/S0024-4937(00)00047-5]
  50. [24] Wilkinson J.J., "Fluid inclusions in hydrothermal ore deposits", Lithos 55(2001) 229-272 [DOI:10.1016/S0024-4937(00)00047-5]
  51. [25] Fournier, R.O., "Hydrothermal processes related to movement of fluid from plastic into brittle rock in the magmatic-epithermal environment", Economic Geology 94 (1996) 1193-1212. [DOI:10.2113/gsecongeo.94.8.1193]
  52. [25] Fournier, R.O., "Hydrothermal processes related to movement of fluid from plastic into brittle rock in the magmatic-epithermal environment", Economic Geology 94 (1996) 1193-1212. [DOI:10.2113/gsecongeo.94.8.1193]
  53. [26] Camprubí A., Albinson T., " Epithermal deposits in México-Update of current knowledge, and an empirical reclassification", Geology of Mexico: Celebrating the centenary of the Geological Society of Mexico 422 (2007) 377-401. [DOI:10.1130/2007.2422(14)]
  54. [26] Camprubí A., Albinson T., " Epithermal deposits in México-Update of current knowledge, and an empirical reclassification", Geology of Mexico: Celebrating the centenary of the Geological Society of Mexico 422 (2007) 377-401. [DOI:10.1130/2007.2422(14)]
  55. [27] Pirajno F., "Hydrothermal processes and wall rock alteration In Hydrothermal processes and mineral systems", Springer, Dordrecht (2006).
  56. [27] Pirajno F., "Hydrothermal processes and wall rock alteration In Hydrothermal processes and mineral systems", Springer, Dordrecht (2006).
  57. [28] Sillitoe R. H., "Epithermal models-genetic types, geometric controls and shallow features: Geological Association of Canada Special", (2007) 40p.
  58. [28] Sillitoe R. H., "Epithermal models-genetic types, geometric controls and shallow features: Geological Association of Canada Special", (2007) 40p.
  59. [29] Moradi Navekh M., Malekzadeh Shafaroodi A., Javidi Moghadam M., "Geology, Mineralogy, Geochemistry and Investigation of Fluids in Meshkan Exploration Zone, Northeast of Sabzevar", Iranian Journal of Crystallography and Mineralogy 28 (2021) 883-894. [DOI:10.52547/ijcm.28.4.883]
  60. [29] Moradi Navekh M., Malekzadeh Shafaroodi A., Javidi Moghadam M., "Geology, Mineralogy, Geochemistry and Investigation of Fluids in Meshkan Exploration Zone, Northeast of Sabzevar", Iranian Journal of Crystallography and Mineralogy 28 (2021) 883-894. [DOI:10.52547/ijcm.28.4.883]
  61. [30] Shakotdpour Z., Karimpour M., Malekzadeh Shafaroodi A., " Geology, Mineralization, Mineralogy of Skarn and Mineral and Geochemical Zones of Sanjadak II and III Exploration Zones, East of Sangan Khaf Iron Ore Mine", Iranian Journal of Crystallography and Mineralogy 24 (2016) 343-354.
  62. [30] Shakotdpour Z., Karimpour M., Malekzadeh Shafaroodi A., " Geology, Mineralization, Mineralogy of Skarn and Mineral and Geochemical Zones of Sanjadak II and III Exploration Zones, East of Sangan Khaf Iron Ore Mine", Iranian Journal of Crystallography and Mineralogy 24 (2016) 343-354.

فایل ها

سابقه مقاله

  • تاریخ دریافت: 27 بهمن 1400
  • تاریخ بازنگری: 27 فروردین 1401
  • تاریخ پذیرش: 04 اردیبهشت 1401

هم رسانی

ارجاع به این مقاله

آمار