Magnetite Chemistry: Evidence of Skarn Fe Mineralization in the Ahangaran Range, Eastern Iran

Document Type : Original Article

Authors

1 Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran

2 Department of Petroleum Engineering and Geology, Mashhad Branch, Islamic Azad University, Mashhad, Iran

Abstract

The studied mining area is located in the northeast of the Lut block, within the Ahangaran mountain range. The rock units in the region generally include limestone and metamorphosed carbonate rocks that are penetrated by intrusive masses with the composition of diorite, monzodiorite, granodiorite and granite. Based on the structural control of the mineralization zone and the formation of metasomatism succession with the presence of low-temperature hydrous minerals such as chlorite and epidote along with magnetite, the iron mineralization of the area can be considered as a low-temperature skarn type. The mineral chemistry of magnetite and the amounts of Ca, Ti, Al, V, Cr, Ni and Mn are also similar to skarn deposits. Field studies indicate that another younger intrusive mass at depth is the origin of the iron mineralization of the ore zone. Based on analysis of components, calculated on the basis of REE, the ore solution with magmatic origin has moved upward along the faults and after mixing with atmospheric fluids, as a result, it has created a reaction with the carbonate rocks of the iron ore.

Keywords

References

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Iranian Journal of Crystallography and Mineralogy
Volume 31, Issue 3 - Serial Number 91
October 2023
Pages 455-466

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  • Receive Date: 05 December 2022
  • Revise Date: 30 December 2022
  • Accept Date: 01 February 2023

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