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

tags: QAZVIN