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Kerman province mineral occurrence distribution map and mineral exploration targets area in south west of this province using GIS
Mana Rahimi
G.I.S. group – Geomatics department
Tehran – Iran
Tel : 0098-21-6459273
Fax : 0098-21-6009338
mana_r@yahoo.com
Ali Reza Jafari Rad
G.I.S. group – Geomatics department
PO. Box : 13185-1494
Tehran – Iran
Tel : 0098-21-6459273
Fax : 0098-21-6009338
alirad@yahoo.com
Mana Rahimi
G.I.S. group – Geomatics department
Tehran – Iran
Tel : 0098-21-6459273
Fax : 0098-21-6009338
mana_r@yahoo.com
Ali Reza Jafari Rad
G.I.S. group – Geomatics department
PO. Box : 13185-1494
Tehran – Iran
Tel : 0098-21-6459273
Fax : 0098-21-6009338
alirad@yahoo.com
Introduction
Creation of Kerman mineral occurrence distribution map is an applicable and strong method for demonstration of mining potentials and is guideline for new exploration programs.
Using this map as a base map and another data is prepared the mineral potential map and target areas in south west of this province for copper exploration.
This project is one of the successful examples of using GIS in exploration studied areas.
Methodology
Most important reason for creation of mineral potential map using GIS is identification of target areas for ore deposits. for creation of these maps the data collect and prepare. After classification a data base is building for all of layers and link to it.
The base map for this map is a digital geological map of the province.(Fig. 1) The deposits divided to metallic and none-metallic and then the main groups re divided into active, abandoned and indication. In addition the symbols show size and type of deposits and there are more another information in the data base of map.
Figure 1 Kerman province geological map and distribution of mines in this province
After this level, all of layers for creation of copper mineral potential map in the studied area are prepared.(Fig.2)
Figure 2 Index map of study area
These layers includes:
These maps are named evidence maps and in this project binary form is used. final processing and preparing a mineral potential map is using binary class maps. The method of processing in this project is weights of evidence. The improved understanding of a mineral deposit model appropriate for the vein form and porphyry copper deposits in the area.(Fig.6)
Figure 6 Mineral potential map of copper in studied area
The important economic deposits which is proved in field checking, tin and polish sections studies are selected for semi detail and detail studies in the future.
Conclusion
Using GIS in mineral exploration, is a favorable way for study of large amount of data which can limit the area for exploration and reduce budget and time and get better results for expert.
In Kerman province, there are important areas for copper mineralization and some of important mines such as Meyduk and Sarcheshmeh are located in these province. And they are good information sources for modeling.
In this project after introduction of new areas for copper deposits, exploration classification was applied in the maps in based on geomorphology and geological position in studied areas and economic condition of element. Field observations confirm this proposal.
References
Creation of Kerman mineral occurrence distribution map is an applicable and strong method for demonstration of mining potentials and is guideline for new exploration programs.
Using this map as a base map and another data is prepared the mineral potential map and target areas in south west of this province for copper exploration.
This project is one of the successful examples of using GIS in exploration studied areas.
Methodology
Most important reason for creation of mineral potential map using GIS is identification of target areas for ore deposits. for creation of these maps the data collect and prepare. After classification a data base is building for all of layers and link to it.
The base map for this map is a digital geological map of the province.(Fig. 1) The deposits divided to metallic and none-metallic and then the main groups re divided into active, abandoned and indication. In addition the symbols show size and type of deposits and there are more another information in the data base of map.
Figure 1 Kerman province geological map and distribution of mines in this province
After this level, all of layers for creation of copper mineral potential map in the studied area are prepared.(Fig.2)
Figure 2 Index map of study area
These layers includes:
- Mining information layer: this layer is one of the most important layers which consists of index mines and indications for modeling and it get from the mineral occurrence distribution map of Kerman province.
- Geology layer: includes geological units in study area.(Fig.3)
Figure 3 Binary maps of faults and Geological units in study area
- Airborne geophysics layer: this layer is prepared using aero magnetic data and correlate filtration of that.(Fig.4)
Figure 4 Aero magnetic map of Kerman province and binary map of it in study area
- Exploration geochemical data: includes Para genesis anomalies of Copper mineralization in study area.
- Remote sensing layers: includes faults map, alteration zones map and rock units map.(Fig.5)
Figure 5 Landsat TM image and economic type of mineralization in study area
- Faults layer: this layer is the results of integration of geological, remote sensing and geophysical maps.
- Alteration layers: the alterations data which in identified in the field by geologist.
These maps are named evidence maps and in this project binary form is used. final processing and preparing a mineral potential map is using binary class maps. The method of processing in this project is weights of evidence. The improved understanding of a mineral deposit model appropriate for the vein form and porphyry copper deposits in the area.(Fig.6)
Figure 6 Mineral potential map of copper in studied area
The important economic deposits which is proved in field checking, tin and polish sections studies are selected for semi detail and detail studies in the future.
Conclusion
Using GIS in mineral exploration, is a favorable way for study of large amount of data which can limit the area for exploration and reduce budget and time and get better results for expert.
In Kerman province, there are important areas for copper mineralization and some of important mines such as Meyduk and Sarcheshmeh are located in these province. And they are good information sources for modeling.
In this project after introduction of new areas for copper deposits, exploration classification was applied in the maps in based on geomorphology and geological position in studied areas and economic condition of element. Field observations confirm this proposal.
References
- Bonham carter G.F. (1994) Geographic information system for geoscientist. Modeling with GIS, Pergamon, Oxford, 397p.
- Vaezi pour M.J. (1999) Systematic exploration project in Uromie – Dokhtar belt (Kerman province parts), Geological Survey of Iran.
- Sahandi M. & etal (2001) Geological map of Iran, Geological Survey of Iran.
- Deposits information of Kerman province. Ministry of Industries and Mines, Tehran and Kerman offices.
- Geochemical reports of Kerman province, (1997-2001) Geochemical group, Geological Survey of Iran.
- Air borne geophysics reports of Kerman province, (1997-2001) GIS group, Geological Survey of Iran.
- Remote sensing reports of Kerman province, (1997-2001) Remote sensing group, Geological Survey of Iran.