نوع مقاله : علمی-پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه اکتشاف معدن، دانشکده مهندسی معدن، دانشگاه صنعتی امیرکبیر، تهران
2 دانشیار، گروه اکتشاف معدن، دانشکده مهندسی معدن، دانشگاه صنعتی امیرکبیر، تهران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Ardestan area is located in parts of Central Iran and Urumieh-Dokhtar zones, and due to its special geological features, is one of the most promising areas for Pb-Zn mineralization in Iran. The purpose of this research is to model the mineral potential using the hybrid AHP-TOPSIS method, to increase the accuracy of the results and thus to reduce the cost and the risk of exploration operations. For this, in the first step, the evidential layers, which include the geochemical anomaly map, the phyllic, argillic, and iron oxide alterations, the fault density map, and finally carbonate rock units, were transformed in the range of 0 to 1 using the Logistic function. In the next step, all the evidential maps and their corresponding classes weighted using the Analytical Hierarchy (AHP) method and incorporated with the technique of prioritization similar to the ideal solution (TOPSIS). The results show the positive spatial correlation of Pb-Zn elements with lithologies prone to mineralization. Finally, the Prediction-Area (P-A) curve was used to validate the applied method. According to this curve, the intersection point of the prediction rate curves and the corresponding occupied area showed the value of 68. The results of this curve proved the acceptable ability of this method in identifying promising areas.
کلیدواژه‌ها [English]
)