Writers : Zafaranieh, A.; Noroozi, Gh. R.; Zia, H.; Jafari Poor Moghadam, E.
Refference : 28th Symposium on Geosciences and the 14th Symposium on Geological Society of Iran
Publishing Year : 1389

Abstract :

The region studied is located in Bisheh village in south Khorasan province, that is Nehbandan northeast. This region was considered for further investigations through the integration of results from geological, airborne geophysics, terrestrial geophysics and geochemical data and the knowledge concerning the obsolete mines. Identical airborne geophysics data from a distance of 15 kms from the region to be studied, after their interpretation and explanation together with the results from discovery excavations in the neighborhood have identified anomalies of iron. Within the region studied, the preliminary investigations were carried out by Magnetic method. The results from the geophysical processes showed the existence of magnetic anomalies in some parts of the region being studied. Thus, a region with an extent of 75 km2 was selected for further investigations. This paper has dealt with the submittal of the results from economic geology and petrographic studies. 50 thin sections were provided from this zone. The investigation of thin sections showed the existence of hematite and magnetite mineralization. In these sections, the minerals of iron were embedded into a matrix of sersite, chlorite and moscoite, and hematite was also formed in the cavities of rocks. These sections were also investigated in order to determine the alterations and, sersitic, carbonate, chloritic, propelitic, potassic and clayey alterations were identified and some details in regard to them have been submitted.

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