Mineralization and Fluid Inclusion Studies of the Khanlogh Iron Oxide-Apatite Deposit, Northeast of Iran

Authors

Research Center for Ore Deposit of Eastern Iran, Ferdowsi University of Mashhad, Iran

Abstract

     The Khanlogh iron oxide-apatite deposit is located in northwest of Nyshabour within the eastern part of Quchan-Sabzevar magmatic belt. It is hosted in Oligocene quartzmonzy odiorite and granodiorite intrusions. Mineralization occurs as vein, veinlets, and minor berrecia. Mineralogy is magnetite and apatite associated with calcite, quartz, epidote, pyroxene, and chlorite. Based on fluid inclusion studies in apatite, two types of fluid have role in formation of deposit: 1) high-temperature and high-salinity fluid with magmatic nature and 2) moderate-temperature and low-salinity NaCl-, MgCl2-, and CaCl2-bearing fluid. The mixing of hot and brine magmatic ore fluid with cold and low salinity fluid associated with boiling can be casued elements deposition. The deposit is derived from a magmatic-hydrothermal source and is related to Tertiary magmatic activity resulted from subduction of the Sabzevar Neo-Tethyan oceanic lithosphere beneath the Turan plate. Knowledge of the Khanlogh magnetite-apatite deposit, which is the first explorated Kiruna-type mineralization in northeast of Iran, is positive step for exploration of this type of deposit in NE Iran.
 
 

Keywords

References

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