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

Geology and Mineralization Studies of Radioactive Minerals in Bafgh-Saghand Metalogenic Zone (Zarigan)

Document Type : Research Paper

Authors

E Torabian
M.F Aghajanpour
M.J Daraei
Abstract
Zarigan Prospect Area is located at 50 km North of Bafgh, East of Yazd Province. This area is a part of central Iran intercontinental drift, formed during pre-Cambrian. Calc-alkaline magmatic process (500Ma) with felsic composition has brought about different types of metasomatism. Radioactive mineralized zone was associated with "Na-K-Fe-Si" rich hydrothermal fluid that intruded following the tectonic activities with E-W trend. Mineralization is related to albite, albite-epidote-Amphibole and silicified zones that emplaced in the margin of Diabasic Dykes trending E-W. The main host rock is felsic Tuff. The thickness of mineralization is between 0.3-2 meters, dipping 30-35ºN. Main minerals in the active zone are: Ti-magnetite, Davidite, pitchblend, and other radioactive minerals, quartz and some sulfide minerals such as pyrite (3-5%), which are found mainly as disseminated, irregular veinlets and dispersed lenses. Uranium and thorium grade varies between 50-2500 ppm and 50-5000ppm, respectively. Subsurface geological studies show that the activity is discontinued in zones and radiation is related to shallow to intermediate depths (40>m). The contents of Ce, Ti and Zr (Trace Els.) and Fe­­­­2O­3 (major Oxide) are also high and notable in this system.

Highlights

  1. 1.    1:100000 آریز (1379).                                                                   

 

  1. 2.    ع. باباخانی، ج. مجیدی، سازمان زمین­شناسی و اکتشافات معدنی کشور، گزارش نقشه زمین­شناسی 1:100000 ساغند (1367).          

 

  1. 3.     ب. سامانی، نشریه علمی سازمان انرژی اتمی ایران 1-14 شماره 17 (1371).                                                                                              

 

  1. 4.    J.A.  Pearce and J. Cann “Tectonic setting of basic volcanic rocks determined using trace element analyses,” Earth and Planet.Sci.Lett., 19, 290PK  (1973).

 

  1. 5.    J. Franz Dahlkamp, “Uranium ore deposits,” 122-127., 460 (1991).                     

 

  1. 6.    A.K. Miguta, Geology of ore deposits, 43. No.2, “Uranium deposit of the Elkon ore district  in  Aldan shield,” 116-135 (2001).

 

م. آقاجانپور، ب. عمادی، ا. ترابیان، ”مطالعات زمین‌شناسی سطح‌الارضی منطقه اکتشافی زریگان،“.  

Keywords

Uranium
Thorium
Hydrothermal
Titanomagnetite
Davidite
Pitchblend
Radioactive Minerals
Mineralization
Hydrothermal Systems
Zarigan
  1. 1.    1:100000 آریز (1379).                                                                   

 

  1. 2.    ع. باباخانی، ج. مجیدی، سازمان زمین­شناسی و اکتشافات معدنی کشور، گزارش نقشه زمین­شناسی 1:100000 ساغند (1367).          

 

  1. 3.     ب. سامانی، نشریه علمی سازمان انرژی اتمی ایران 1-14 شماره 17 (1371).                                                                                              

 

  1. 4.    J.A.  Pearce and J. Cann “Tectonic setting of basic volcanic rocks determined using trace element analyses,” Earth and Planet.Sci.Lett., 19, 290PK  (1973).

 

  1. 5.    J. Franz Dahlkamp, “Uranium ore deposits,” 122-127., 460 (1991).                     

 

  1. 6.    A.K. Miguta, Geology of ore deposits, 43. No.2, “Uranium deposit of the Elkon ore district  in  Aldan shield,” 116-135 (2001).

 

م. آقاجانپور، ب. عمادی، ا. ترابیان، ”مطالعات زمین‌شناسی سطح‌الارضی منطقه اکتشافی زریگان،“.  

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