Since 1999 GSI Deputy for Exploration has accomplished exploration activities throughout the country in two phases, Regional Systematic Exploration and thematic Exploration.
Economic
geology studies of this project are carried out in Exploration Management with cooperation of four exploration groups.
Activities in Previous Years
Non-metallic group has cooperation in reconnaissance and exploration of non-metallic minerals.This group since its foundation has been able to explore some non-metallic minerals such as bauxite, phosphate, potash, sodium sulfate, alunite, perlit and zeolite up to exploitation stage.
Non-metallic group activities in 2001
Non-metallic group has started exploration activities since 2001 on the following projects:
1- Exploration of Igneous phosphate-Rare Earth elements in Gazestan area
2- Exploration of Qarehgol type boron
3- Exploration and prospecting the Rare Earth elements and precious minerals in granitoids and pegmatite rocks It is to be noted that this group has had cooperation with the other groups in other projects such as regional exploration and gold exploration.
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Physical Progress of the Foreseen Exploration Projects by the Non-metallic Group in 2001
Igneous phosphate-Rare Earth elements Exploration project in Gazestan area (Bafq):
1- Gazestan phosphate ore deposit is located in 54 km of north Bafq city near Gazestan village.
2- Apatite mineralization occurs as Apatite and magnetite lens, veins and nodules, in strongly chloritized pyroxenite mafic diabas.
3-The rate of P2O5 in this ore deposit varies between 3 to 38%.
4-The rate of Rare Earth elements in apatite mineral is more than 1.5%, which shows high economic value.
5-Studies carried out in semi-detailed phase shows that tens MT ores with 10-15% mean grade of P2O5 and tents Rare Earth Elements are predictable in this ore deposit. Comparing to Esfordi, it can be considered as a phosphate-Rare Earth Elements ore deposit with rather more reserve.
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Physical Progress of the accomplished Exploration Projects by the Non-metallic Group in 2001
Exploration and prospecting Rare Metallic Elements and Precious minerals
1- Prospecting Rare Elements and Precious minerals started in 2001.
2- Exploration activities started on more than 50 granituid outcrops, with probable potential, and mafic-ultramafic alkali complex rocks in central
During implementing exploration programme in this zone, 9 sheet maps on 1:100/000 scales are studies as follows;
Physical Progress of the accomplished Projects by the Non-metallic Group in 2002
1- Prospecting and studying the geological sections for exploration of boron in an area more than 850km2 in Mahneshan and Takab have been carried out
2- Digging trench in this project is totally 83m
3- Up-to-date exploration methods have been practically used in the field
4- During exploration activities some considerable mineral indexes were defined in the study area
Iran, Khorassan and Eastern and western Azerbaijan.
3- During field work more than 350 samples were sent to the GSI Laboratories in order to be analyzed the Rare Earth Elements by different methods (ICP-XRF-XRD).
Meanwhile, 100 samples were also sent abroad for analyzing the Rare Earth Elements.
4- Up to the present time %50 of fieldwork and 50% of the laboratory and office work of this project have been accomplished.
The preliminary report of this project will be submitted early 2002.
Non-metallic Group under Implementation Projects in 2001
Considering the foreseen Geological and Mineral Exploration programme, for completing regional exploration in 20 foreseen zones during 2002, the Non-metallic group will have activity in Tarom zone.
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