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Paper Information

Title: 

GEOLOGY, MINERALOGY AND GEOCHEMISTRY OF RADIOACTIVE MINERALS IN ZARIGAN PROSPECT AREA

Type: SPEECH
Author(s): TORABIAN E.*,AGHA JANPOUR M.F.A.D.,DARAEI M.J.
 
 *ATOMIC ENERGY ORGANIZATION OF IRAN
 
Name of Seminar: SYMPOSIUM OF EARTH SCIENCES
Type of Seminar:  SYMPOSIUM
Sponsor:  ORGANIZATION OF GEOLOGICAL OF IRAN
Date:  2006Volume 24
 
 
Abstract: 

Zarigan Prospect Area is located 50 Km North of Bafgh (East of yazd Province). This area is 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 were accosiated with Na-Ca-Si rich hydrothermal fluid that intruded following tectonic activities. Mineralization is related to albite, albite-epidote-Amphibole metasomatism and silica-zone that emplaced in the margin of Diabasic Dykes trending E-W. The main host rock is felsic Tuff. The width of mineralization is between 0.3-2 meters, dipping 30-35ºN. Main minerals in the active zone are: Ti-magnetite, Davidite, pitchblend, 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 50-2500ppm and 50-5000 ppm respectively.The content of Fe, Ce, Ti, Zr is also high in the ore.

 
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