Geology, Mineralogy and Geochemistry of Radioactive Minerals in Zarigan prospect area
| Category | Economic geology & mineral exploration |
|---|---|
| Group | GSI.IR |
| Location | The 24 Symposium of Geosciences |
| Author | E.Torabian, M.F.Aghajanpour and M.J.Daraei |
| Holding Date | 15 August 2007 |
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