Writers : Eshraghi,Mohammad Hadi;Khajeh Miri,Zahra
Refference : 11th Symposium Of Geological Society Of Iran - Mashhad, Ferdowsi University
Publishing Year : 1386

Abstract :

Bishea region is in northwest of Nehbandan (a city of south Khorasan province in east of Iran). This region was choosen for Geology measurement with compilation of results of geology information, Arial Geophysics, potassium radiometry, and information related with obsolete mines.
Ten rock samples for ICP analysis, three petrography samples and two polish sections were taken of this region. Analyzed rock samples of this region show Cu mineralization and a little Fe mineralization. The other elements are about background. According to samples studies and field geology Cu mineralization in this part of region has vine type which has east- west extension.
Fe mineralization is in form of Oligist and hematite. This is the result of exalitive phenomenon in pyroclastic rocks. Cu mineralization is perhaps hydrothermal type. And existing Paragenes in surface samples belong to oxidation zon. The most of sulfide mineral has disappeared. Maybe high assay of cu were in deep layer rather than in surface layer.
In addition to mineralization of cu in vine type, Mineralization of Pb and Zn have been formed in skarn.

Subject List : Preliminary exploration