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Aida Mohebi, Geological survay of Iran (Islamic Republic of Iran)
Mohammad Sadeghi, Geological survay of Iran (Islamic Republic of Iran)
Seid Taghi Delavar, Geological survay of Iran (Islamic Republic of Iran)
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Mineral exploration strategy plan was revised in Geological Survey of Iran (GSI) in 1998 and about 20 high potential zones for Cu, Au, Pb, Zn, and Fe have been defined. One of these zones is Shazand- Aligudarz zone which is located in the west of Iran. The investigated area is covered by Golpaygan and Khoram abad geological map (scale 1:250,000) and is located in 51 00 - 49 00 longitude and 33 00 -43 00 latitude.
From the structural point of view in the area there are 4 major structural Zones: Zagros, Bistune, Central Iran and metamorphic rocks and intruded granitoides. The eldest rocks in the area are metamorphic rocks of archean. Other rocks include Permian and Cretaceous carbonate rocks. One of the important points for mineral exploration in this zone is the existence of important mine and mineral occurences such as iron, lead, zinc and gold in different rock types.
In this research based on the GIS modeling for mineral exploration we used five data sources including: geological map (1: 100000 scale), geochemistry data, remote sensing, airborn geophysics and mines and mineral occurences data. According to the database in this zone different types of modeling have been applied such as index-overlay, fuzzy-logic and weights-of-evidence in GIS environment.
After all processes and preparing the mineral potential maps , the best area controlled in the field, then the most promising one's were selected for further studies.
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