Speaker
Dr
Jalil Iranmanesh
(Atomic Energy Organization of Iran)
Description
Khoshumi area is located in the Yazd province. It's part of the central Iran zone. The oldest rocks in this area are gneiss, micaschist and amphibolite. Based on microscopic studies, radioactive mineralization is relevant to gneiss and pegmatites. The main minerals in the gneiss are felsic minerals, biotite and amphibole. Pegmatitic rocks has mainly quartz, albite and pertite.Major alterations are potassic, sodic, siliceous and carbonate. Main mineralization is consist of three categories: REE minerals, radioactive and inactive minerals. The first category is includes zircon, zirconolite and etc. Radioactive minerals are Pitch-blend and uranium silicates such as coffnite. In the specimens, pitch-blend and uranium silicates hase granular texture, and aggregational to spheroial textures. Also, inactive minerals are a set of iron and titanium-bearing minerals. Mineralization in the Khoshumi area is related to pegmatitic and hydrothermal phases. These Phases are associated with enrichment in the REE, U, Cu, Mo, Ni and Th in some areas. In the Pegmatitic phase, enrichment of U and REE is occurred in zircon and allanite. Hydrothermal mineralization led to formation of minerals like pitch-blend and arsenopyrite. In the final stage.
| Country or International Organization | Iran |
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Primary author
Dr
Jalil Iranmanesh
(Atomic Energy Organization of Iran)
Co-authors
Mr
Hamid Rahmani
(Atomic Energy Organizatino of Iran)
Mr
Saman Raziani
(Novin Pars Exploration and Mining Engineering Co.)
