Targeting of Porphyry Copper Mineralization Using a Continuous-based Logistic Function Approach in the Varzaghan District, North of Urumieh-Dokhtar Magmatic Arc | ||
| Journal of Mining and Environment | ||
| مقاله 16، دوره 16، شماره 4، مهر و آبان 2025، صفحه 1417-1435 اصل مقاله (3.43 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2024.14752.2803 | ||
| نویسندگان | ||
| Mobin Saremi1؛ Abbas Maghsoudi* 1؛ Reza Ghezelbash2؛ mahyar yousefi3؛ Ardeshir Hezarkhani1 | ||
| 1Department of Mining Engineering, Amirkabir University of Technology, Tehran, Iran | ||
| 2School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
| 3Faculty of Engineering, Malayer University, Malayer, Iran | ||
| چکیده | ||
| Mineral prospectivity mapping (MPM) is a multi-step and complex process designed to narrow down the target areas for exploratory activities in subsequent stages. To pinpoint promising zones of porphyry copper mineralization in the Varzaghan district, NW Iran, various exploration evidence layers were employed in alignment with the conceptual model of these deposits. These layers encompass fault density, proximity to intrusive rocks, multi-element geochemical anomalies, and distances to phyllic and argillic alterations. The geochemical anomaly maps, recognized as the most effective layers, were generated through staged factor analysis (SFA) and the geochemical mineralization probability index (GMPI). Other layers were weighted using a logistic function, and their values were transformed into 0 -1 interval. Ultimately, to integrate the weighted layers, the fuzzy gamma operator and the geometric average method were applied. The normalized density index and prediction-area (P-A) plot were employed to evaluate the MPM models. The findings indicate that the developed models possess considerable validity and can be effectively utilized for planning future exploration endeavors. | ||
| کلیدواژهها | ||
| Porphyry copper deposit؛ Stream sediment geochemistry؛ Staged factor analysis؛ Geochemical | ||
| مراجع | ||
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