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International Journal of Mining and Geo-Engineering، جلد ۵۸، شماره ۱، صفحات ۶۹-۸۷
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عنوان انگلیسی TOPSIS vs MIO: Applications to gold prospectivity mapping; a case study of the Basiran-Mokhtaran Area- Eastern Iran
چکیده انگلیسی مقاله As the depth of mineral exploration has increased in recent years, multiple exploration methods have become necessary to obtain more accurate depth and surface data. Each type of exploratory data has different uncertainty, resolution, and efficiency levels. Using these data individually or preparing traditional models based on a single data type often fails to meet the desired accuracy level. Therefore, mineral prospectivity mapping (MPM) has become more common in integrating these data. MPM methods require determining the importance of the data used. This importance is expressed as the weight of the layers (evidence). Typically, data-driven methods cannot be used to determine the weight of evidence layers in green areas due to the need for sufficient deposits. In these areas, knowledge-based methods, using the opinions of expert geologists, are often used to determine the weight of the layers. However, the weights determined by different experts may vary depending on their perspectives. Therefore, one of the challenges of using MPM methods in green areas is determining a reliable weight for the layers. This paper uses different exploration data, such as airborne geophysical data, geochemistry, geology, and remote sensing data, to prepare suitable reference layers. Due to the limited mineral prospects available in this area, we used the prediction-area (P-A) method to calculate the layers' weights without experts' opinions. We then used these weights to produce the gold prospectivity map in this area using the multi-index overlay (MIO) and the (Adjusted, Conventional, and Modified) TOPSIS methods. Finally, the obtained results were used to evaluate the efficiency of these methods and the calculated weights for this area.
کلیدواژه‌های انگلیسی مقاله Mineral Prospectivity Mapping (MPM), Prediction-Area (P-A), Continues weighting, Multi-Index Overlay, TOPSIS
نویسندگان مقاله Abbas Bahroudi |
School of Mining, College of Engineering, University of Tehran, Tehran, Iran.

Hosein Ferdowsi |
School of Mining, College of Engineering, University of Tehran, Tehran, Iran.

Ali Moradzadeh |
School of Mining, College of Engineering, University of Tehran, Tehran, Iran.

Maysam Abedi |
School of Mining, College of Engineering, University of Tehran, Tehran, Iran.

نشانی اینترنتی https://ijmge.ut.ac.ir/article_95311_2eaab3bcb03656836ef381b95caf22f9.pdf
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