ABSTRACT Geospatial Information System (GIS) provide tools to quantitatively analysis and combination of datasets from geological, geophysical, remote sensing and geochemical surveys for decision-making processes. Excellent coverage of well-documented and good quality data enables testing of variable exploration modeling in an efficient way. The study area of this research is the most important part of Cu (Mo) porphyry—type mineralization belt in Iran. There are some well-known porphyry copper deposits in this region like Sarcheshmeh and Meiduk mines, but certainly there are same grounds to search for new porphyry deposits. The risks of developing mineral resources need to be known as accurately as possible, with regarding to all features those are effective in mineralization. These features can be recognized respect to Critical Genetic Factors (CGF’s) using Critical Recognition Criteria (CRC) for each type of mineralization. CGF’s can be employed for designing a Conceptual Genetic Model (CGM). Evidence maps create on the basis of CGM and then integrate together for production of Mineral Prospectivity Map (MPM). This map categorizes the areas based on their exploration importance. There are several techniques for creation of MPM. Interval Valued Fuzzy Sets (IVFSs) TOPSIS method was applied in this research. This method as a knowledge-driven method, allocate appropriate weights to layers on the basis of the effective membership, non membership, and non-certainty. The fundamental concept of TOPSIS is that the chosen alternatives should have the shortest distance from the positive ideal points (A*) and the farthest distance from negative ideal points (A-).
Cite this paper
nullA. Rad and W. Busch, "Porphyry Copper Mineral Prospectivity Mapping Using Interval Valued Fuzzy Sets Topsis Method in Central Iran," Journal of Geographic Information System, Vol. 3 No. 4, 2011, pp. 312-317. doi: 10.4236/jgis.2011.34028.
 F. P. Agterberg, “Estimating the Probability of Occurrence of Mineral Deposits from Multiple Map Patterns,” In: D. F. Merriam and H. Kurzl, Eds., the Use of Microcomputers in Geology, Plenum Press, New York, 1992, pp. 73-92.
 R. K. T. Reddy, F. P. Agterberg and G. F. Bonham-Carter, “Application of GIS-Based Logistic Models to Base- Metal Potential Mapping in Snow Lake Area,” Proceedings of Canadian Conference on GIS, Ottawa, 24-26 March 1991, pp. 607-618..
 K. Y. Hwang, “Multiple Attribute Decision Making: Methods and Applications,” Springer, Berlin, Heidelberg, New York, 1981.
 J. Malczewski, “GIS and Multi-Criteria Decision Analysis,” Wiley, New York, 1999.
 J. M. C. Pereira and L. Duckstein, “A Multiple Criteria Decision-Making Approach to GIS-Based Land Suitability Evaluation,” International Journal of Geographical Information Systems, Vol. 7, No. 5, 1993, pp. 407-424.
 S. S. Katz, “Emulating the Prospector Expert System with a Raster GIS,” Computers and Geosciences, Vol. 17, No. 7, 1991, pp. 1033-1050.
 K. Atanassov and G. Gargov, “Interval Valued Intuitionistic Fuzzy Sets,” Fuzzy Sets and Systems, Vol. 31, No. 3, 1989, pp. 343-349. doi:10.1016/0165-0114(89)90205-4
 L. A. Zadeh and J. Kacprzyk, “Fuzzy Logic for the Management of Uncertainty,” L. A. and J. Kacprzyk, Eds., John Wiley & Sons, New York, 1992.
 C. Chen, “Extensions of the TOPSIS for Group Decision-Making under Fuzzy Environment,” Fuzzy Sets and Systems, Vol. 114, No. 1, 2000, pp. 1-9.
 T. Y. Chen and C. Y. Tsao, “The Interval-Valued Fuzzy TOPSIS Method and Experimental Analysis,” Fuzzy Sets and Systems, Vol. 159, No. 11, 2007, pp. 1410-1428.
 A. Zarasvandi, S. Liaghat and M. Zentilli, “Porphyry Copper Deposits of the Urumieh-Dokhtar Magmatic Arc, Iran,” In: T. M. Porter, Ed., Super Porphyry Copper & Gold Deposits: A GlobalPerspeclive, PGC Publishing, Adelaide, 2005, pp. 441-452.
 B. Samani and S. Ashtari, “Evaluation of Volcano- Plutonic-Arc in Central Iran, Formed by Subduction of Mesozoic Tethys Oceanic Crust,” Geosciences, Geological Survey of Iran, Vol. 1, No. 4, 1992.
 S. R. Titley and R. E. Beane, “Porphyry Copper deposits,” In: B. J. Skinner, Ed., Economic Geology Seventy- fifth Anniversary Volume 1905-1980, Economic Geology Publishing Co., Littleton, 1981, pp. 214-269.
 J. D. Lowell and J. M. Guilbert, “Lateral and Vertical Alteration-Mineralization Zoning in Porphyry Ore Deposits,” Economic Geology and the Bulletin of the Society of Economic Geologists, Vol. 65, No. 4, 1970, pp. 373-408. doi:10.2113/gsecongeo.65.4.373
 E. Szmidt and J. Kacprzyk, “Distances between Intuitionistic Fuzzy Sets,” Fuzzy Sets and Systems, Vol. 114, No. 3, 2000, pp. 505-518.