Volume 32, Issue 2 (7-2024)
www.ijcm.ir 2024, 32(2): 301-312 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Khoshnoodi K, Miri Alamuti S F, Yazdi M. Determining the genesis of uranium mineralization in Saghand anomaly-2 using geochemistry of rare earth elements in uraninite, Central Iran. www.ijcm.ir 2024; 32 (2) :301-312
URL: http://ijcm.ir/article-1-1770-en.html
URL: http://ijcm.ir/article-1-1770-en.html
1- Nuclear Science and Technology Research Institute, Nuclear Fuel Cycle Research School, Tehran, Iran
2- Department of Geology, Minerals and Water Resources, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran
2- Department of Geology, Minerals and Water Resources, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran
Abstract: (676 Views)
Saghand Anomaly 2 is located in 180 km NE of Yazd, 40 km east of Saghand village and east of Tashk mountain. This area is part of the Bafgh-Saghand metallogenic zone in the Central Iran Zone. The early Cambrian volcano-sedimentary unit consisting of intermediate- acidic volcanics, dolomitic limestone and small amounts of gypsum layers hosts iron-uranium mineralization in Sagand region. Uraninite is the main host of uranium associated with magnetite and pyrite. Molybdenite is rarely present in some parts f mineralization zones. Fe and U mineralizations occurr in two separate stages. coarse-grained Magnetite and pyrite are related to the Fe-mineralization stage while their fine-grained types form in the U-mineralization stage. The U content varies between 1365 and 4764 ppm in the analysed samples. As well as, Ce, Fe, Hf, Nb, S, Sc, Ta, W, Yb and Zr show enrichment, and Fe and S have the largest ranges of changes. The major and rare earth elements can be divided into two groups according to their association with U. The first group includes S, Fe, Ce, Dy, Er and Gd that show positive correlation with U and form in the same condition. The second group including Ti, Hf and Nb, have negative correlation with U and probabely form in the different condition. The rare-earth elements diagram show depletion in Eu and Pr and enrichment in Ce and Sm. The chemical composition of uraninite and the similarity of the distribution pattern of rare earth elements in uraninite of Saghand Anomaly 2 with metasomatic deposits show that the uranium mineralization in Saghand Anomaly 2 is metasomatic type and based on the chemical composition and distribution pattern of rare earth elements in the uraninite its formation temperature is between 200 and 350 ̊C.
References
1. ]1] Ramezani J., Tucker R.D., "The Saghand region, central Iran: U Pb geochronology, petrogenesis and implications for Gondwana tectonics", American Journal of Science 303 (2003) 622-665. [DOI:10.2475/ajs.303.7.622]
2. ]2] Ramdohr P. "New observations on the ores of the Witwatersrand in South Africa and their genetic significance", Geological Society of South Africa Transactions 16 (1958) 1-50.
3. ]3] Mirzababaei G., Yazdi M., Rezvanianzadeh M.R., Behzadi M., Ghannadi M.M., "Mineralization features of radioactive elements in Sehchahoon deposit based on spectroscopic, mineralogical and geochemical evidence", Iranian Journal of Nuclear Science and Technology 40 (2019) 100-107 (in Persian).
4. [4] Khoshnoodi K., Ziapour S., Yazdi M., Cuney M., "Mineralogy of various types of Th-U-REE mineralisation in the iron oxide - apatite deposits of the Bafq district, Central Iran", Applied Earth Science 132 (2023) 1-15. [DOI:10.1080/25726838.2022.2147300]
5. ]5] NISCO, "A brief account of the Bafq iron ore region of central Iran", National Iranian Steel Corporation (NISCO), Tehran, (1979) 149p (in Persian).
6. [6] Torab F.M., "Geochemistry and metallogeny of magnetite- apatite deposits of the Bafq Mining District, Central Iran", PhD Thesis, Clausthal University of Technology, Germany (2008) 144p.
7. [7] Beijing Research Institute, "Final report on (1:2000) geological- geophysical survy in anomalies No. 1 and 2, Saghand District, Iran", Beijing Research Institute of Uranium Geology China, (1992) 100p.
8. [8] Deymar S., Yazdi M., Rezvanianzadeh M. R., Behzadi M., "Alkali metasomatism as a process for Ti-REE-Y-U-Th mineralization in the Saghand Anomaly 5, Central Iran: insights from geochemical, mineralogical, and stable isotope data", Ore Geology Reviews 93 (2018) 308-336. [DOI:10.1016/j.oregeorev.2018.01.008]
9. [9] Rajabi A., Canet C., Rastad E., Alfonso P., "Basin evolution and stratigraphic correlation of sedimentary-exhalative Zn-Pb deposits of the Early Cambrian Zarigan-Chahmir basin, Central Iran", Ore Geology Reviews 64 (2015) 328-353. [DOI:10.1016/j.oregeorev.2014.07.013]
10. ]10] Haghipour A., Pelissier G., "Geology of the Saghand Sector", In: Haghipour A., Valeh N., Pelissier G., Davoudzadeh M. (Eds.) Explanatory Text of the Ardekan Quadrangle Map, Geological Survey of Iran 8 (1977) 10-68.
11. ]11] Samani B.A., "Metallogeny of the Precambrian in Iran", Precambrian Research 39 (1988) 85-106. [DOI:10.1016/0301-9268(88)90053-8]
12. ]12] Daliran F., "Kiruna-type iron oxidedistrict, Iran, with an emphasis on the REE geochemistry of their apatites", In: Porter T.M. (Ed.) Hydrothermal Iron Oxide Copper Gold and Related Deposits: A Global Perspective, PGC Publishing, Adelaide, Australia (2002) 303-320.
13. [13] Khoshnoodi K., Behzadi M., Gannadi M.M., Yazdi M., "Alkali metasomatism and Th-REE mineralization in the Choghart deposit, Bafq district, Central Iran", Geologia Croatica 70 (2017) 53-69. [DOI:10.4154/gc.2017.03]
14. [14] Khoshnoodi K., Yazdi M., Gannadi M.M., Ziapour S., Deymar S., Behzadi M., "Formation and evolution of Th-REE mineralization fluids at the Kiruna-type Choghart iron oxide- apatite deposit, Central Iran: Insights from fluid inclusions and H-C-O isotopes", Geological Journal 57 (2022) 2144-2159. [DOI:10.1002/gj.4399]
15. [15] Forster H., Jafarzadeh A., "The Bafq mining district in Central Iran: a highly mineralized Infracambrian volcanic field", Economic Geology 89 (1994) 1697-1721. [DOI:10.2113/gsecongeo.89.8.1697]
16. [16] Jami M., Dunlop A.C., Cohen D.R., "Fluid inclusion and stable isotope study of Esfordi apatite-magnetite deposit, Central Iran", Economic Geology 102 (2007) 1111-1125. [DOI:10.2113/gsecongeo.102.6.1111]
17. ]17] Moore F., Modabberi S., "Origin of Choghart iron oxide deposit, Bafq District, Central Iran: New isotopic and geochemical evidence", Journal of Sciences, Islamic Republic of Iran 14 (2003) 259-269.
18. [18] Ziapour S., Esmaeily D., Khoshnoodi K., Niroomand S., Simon A., "Mineralogy, geochemistry, and genesis of the Chahgaz (XIVA Anomaly) Kiruna-type iron oxide-apatite (IOA) deposit, Bafq district, Central Iran", Ore Geology Reviews 128 (2021) 103924. [DOI:10.1016/j.oregeorev.2020.103924]
19. [19] Mirzababaei G., Yazdi M., Behzadi M., Rezvanianzadeh M., "REE-Th mineralization in the Se-Chahun magnetite-apatite ore deposit, central Iran: Interplay of magmatic and metasomatic processes", Ore Geology Reviews 139 (2021) 104426. [DOI:10.1016/j.oregeorev.2021.104426]
20. [20] Ziapour S., Esmaeily D., Khoshnoodi K., Niroomand S., "Mineralogy and geochemistry of thorium mineralization in the Chahgaz iron deposit, Bafq district, Central Iran", Iranian Journal of Nuclear Science and Technology 43 (2022) 80-87 (in Persian).
21. [21] Sun S.S., McDonough W.F., "Chemical and isotopic systematic of oceanic basalt: implication for mantle composition and processes", In: Saunders A.D., Norry M.J. (Eds.), Magmatism in the Ocean Basins, Journal of Geological Society of London, Special Publication 42 (1989) 313-345. [DOI:10.1144/GSL.SP.1989.042.01.19]
22. [22] Fryer B.J., Taylor R.P., "Rare-earth element distributions in uraninites: Implications for ore genesis", Chemical Geology 63 (1987) 101-108. [DOI:10.1016/0009-2541(87)90077-5]
23. [23] Mclennan S.M., "Rare earth elements in sedimentary rocks: Influence of provenance and sedimentary process", Review of Mineralogy 21 (1989) 169-200. [DOI:10.1515/9781501509032-010]
24. [24] Mercadier J., Cuney M., Lach P., Boiron M.C., Bonhoure J., Richard A., Leisen M., Kister P., "Origin of uranium deposits revealed by their rare earth element signature", Terra Nova 23 (2011) 264-269. [DOI:10.1111/j.1365-3121.2011.01008.x]
25. ]25] Cuney M., "Evolution of uranium fractionation processes through time: driving the secular variation of uranium deposit types", Economic Geology 105 (2010) 553-569. [DOI:10.2113/gsecongeo.105.3.553]
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
