Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

Structural control in the generation of iron and uranium in the Bakherz mountain area, east of Sangan mine, Razavi Khorasan province

Document Type : Research Paper

Authors

M. Khosravi 1
M. Sheban 2
H. Bagheri 1
A.R. Nadimi 1

1 Department of Geology, Faculty of Sciences, Isfahan University, Postal Code: 8174673441, Isfahan – Iran

2 Department of Exploration, AEOI, P.O.Box: 14399-51113, Tehran – Iran

https://doi.org/10.24200/nst.2024.1650
Abstract
Bakherz Mountain is situated in the northeast of Sangan city, at the eastern end of the Darone fault. Iron in this area has been extensively formed under the influence of granitoid masses from the upper Eocene to the lower Oligocene within the metamorphosed sedimentary unit in the form of skarn and hydrothermal deposits. Structural investigation of veins, fractures, movement mechanisms of faults, and displacement of units indicates two types of compressive tectonic regimes along N070 and N350 directions. The initial stage of mineralization occurred in the northeast-southwest direction in the Ferezeneh fault zone (N040). In the northern and middle parts of this fault, two shear-tensile zones were created, leading to the rise of iron-bearing fluids and hydrothermal iron mineralization in the northern part (Ferezeneh mine) and skarn-type iron mineralization in the middle part (Madan-Joe). Subsequently, the intersection of the Ferezeneh and Som-Ahani faults (N300) resulted in the creation of a shear-tensile zone and the ascent of iron-bearing fluids, leading to skarn-thermal iron mineralization in the Som-Ahani mine. Lastly, in the southern part of the Ferezeneh fault, uranium has been deposited in a fault zone approximately 2 km in length, within the Skarn unit. Changes in the geo-structural regime and the creation of suitable spaces in the shear-tensile zones have facilitated the flow of fluids, skarn formation, and the deposition of iron and uranium in separate phases and different directions. Structural studies will aid in the optimal extraction of mineral reserves and the identification of new resources.

Highlights

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  1. Meinert L.D, Dipple G.M, Nicolescu S. World skarn deposits. Economic Geology. 2005.

 

  1. Ciobanu C.L, Cook N.J. Skarn textures and a case study: the Ocna de Fier-Dognecea orefield, Banat, Romania. Ore Geology Reviews. 2004;24:315-370.

 

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[In Persian].

 

  1. Ghannadpour S.S, Hezarkhani A, Noorian Sh, Golmohamaadi A. Baghak mine (central part of Sangan mines) metallogenic relationship of minerals containing rare earth elements with radioactivity. Researches in Earth Sciences. 2019;10(37). DOI: 10.52547/ESRJ.10.1.163 [In Persian].

 

  1. Tchalenko J.S, Berberian M, Behzadi H. Geomorphic and seismic evidence for recent activity of the Dorouneh fault (Iran). Tectonophysics. 1973;19:333-341.

 

  1. Sillitoe R.H. Porphyry copper systems. Economic Geology. 2010;105:3-41.

 

  1. Sibsone R.H. Seismogenic framework for hydrothermal transport and ore deposition. Reviews in Economic Geology. 2001;14:25-50.

 

  1. Pirkhizranian M.Z, Ghaemi F, Rahimi B, Ghaemi F. Description and classification of fractures in the area between the Baghek and Sanjadek anomalies in the Sangan Khaf iron ore mine. Conference of Geological Society of Iran. 2013;17.

 

  1. Pirkhizranian M.Z, Ghaemi F, Rahimi B, Ghaemi F. Reconstruction of the ancient stress field around the Dardavi fault in the area of Sangan Khaf iron ore mine. Conference of Geological Society of Iran. 2013;17.

 

  1. Ghorbanlou M, Ghaemi F, Rahimi B, Ghaemi F. Investigating the state of the stress field and its reconstruction in the southern mass C of the Sangan Khaf iron ore mine in eastern Iran. Conference of Geological Society of Iran. 2013;17.

 

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20. Twiss R.J, Moores E.M. Stractural Geology. Freeman Pub, New York. 1992;532

Keywords

Bakherz mountain
Sangan
Iron mineralization
Radiation
Structural
  1. Aghanabati A. Geology of Iran. Geological survey and mineral exploration of Iran. 586 Pages. 2004 [In Persian].

 

  1. Ahi A. Mineralogy, Geothermometry and Genesis of the Somahani ore deposits (Sangan Iron mine, SE of Khaf area). 2014 [In Persian].

 

  1. Nasrolahi Kh. Petrology and geochemical of Bermani and Sar-Khar massive granitoid in Sangan-Khaf-Khorasan Razavi. 2012 [In Persian].

 

  1. Mazhari N, Malekzadeh Shafaroudi A, Ghaderi M. Geology, mineralogy and geochemistry of Ferezneh ferromanganese anomaly, east of Sangan mines complex, NE Iran. Journal of Economic Geology. 2015;7(1):ISSN 2008-7306 [In Persian].

 

  1. Karimpour M.H. Cu-Au mineralizaion accompany with magnetite- spcullarite (IOCG) and examples in Iran. 9th Iranian geology society conference, University of Tarbiat Moallem, Tehran, Iran. 2006.

 

  1. Sepidbar F, Mirnejad H, Mi C. Mineral chemistry and Ti in zircon thermometry: Insights into magmatic evolution of the Sangan igneous rocks, NE Iran. Journal of Chemie der Erde. 2018.

 

  1. Meinert L.D, Dipple G.M, Nicolescu S. World skarn deposits. Economic Geology. 2005.

 

  1. Ciobanu C.L, Cook N.J. Skarn textures and a case study: the Ocna de Fier-Dognecea orefield, Banat, Romania. Ore Geology Reviews. 2004;24:315-370.

 

  1. Rezaei A, Hassani H, Moarefvand P, Golmohammadi A. Investigation of effect of structural pattern on mineralization model in the C-north ore deposite, Sangan, NE Iran. Journal of Mineral Resources Eugineering (JMRE). 2019. DOI: 10.30479/jmre. 2019.9885.1210 [In Persian].

 

  1. Mazhari N, Malekzadeh Shafaroudi A, Ghaderi M. Geology, mineralogy, and chemistry of skarn zones and orebody in Ma’danjoo iron skarn prospect area, east of Sangan mine, Khaf, NE Iran. Iranian Journal of Crystallography and Mineralogy. 2016;24(1).

 

  1. Ghannadpour S.S, Hezarkhani A, Noorian Sh, Golmohamaadi A. Exploration of REE Using Radioactivity; Case Study: Baghak Mine, Sangan. J. of Nucl Sci. and Tech. 2018;17(83):30-45

[In Persian].

 

  1. Ghannadpour S.S, Hezarkhani A, Noorian Sh, Golmohamaadi A. Baghak mine (central part of Sangan mines) metallogenic relationship of minerals containing rare earth elements with radioactivity. Researches in Earth Sciences. 2019;10(37). DOI: 10.52547/ESRJ.10.1.163 [In Persian].

 

  1. Tchalenko J.S, Berberian M, Behzadi H. Geomorphic and seismic evidence for recent activity of the Dorouneh fault (Iran). Tectonophysics. 1973;19:333-341.

 

  1. Sillitoe R.H. Porphyry copper systems. Economic Geology. 2010;105:3-41.

 

  1. Sibsone R.H. Seismogenic framework for hydrothermal transport and ore deposition. Reviews in Economic Geology. 2001;14:25-50.

 

  1. Pirkhizranian M.Z, Ghaemi F, Rahimi B, Ghaemi F. Description and classification of fractures in the area between the Baghek and Sanjadek anomalies in the Sangan Khaf iron ore mine. Conference of Geological Society of Iran. 2013;17.

 

  1. Pirkhizranian M.Z, Ghaemi F, Rahimi B, Ghaemi F. Reconstruction of the ancient stress field around the Dardavi fault in the area of Sangan Khaf iron ore mine. Conference of Geological Society of Iran. 2013;17.

 

  1. Ghorbanlou M, Ghaemi F, Rahimi B, Ghaemi F. Investigating the state of the stress field and its reconstruction in the southern mass C of the Sangan Khaf iron ore mine in eastern Iran. Conference of Geological Society of Iran. 2013;17.

 

  1. Corbett G. Structural controls to, and exploration for, epithermal Au-Ag deposits. Australian Institute of Geoscientists Bulletin. 2012;56:43-47.

 

20. Twiss R.J, Moores E.M. Stractural Geology. Freeman Pub, New York. 1992;532

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