Application of Fractal Modeling for Accurate Resources Estimation in the Qarah Tappeh Copper Deposit, NW Iran

This investigation centers on the Qarah Tappeh copper deposit, situated in the northern region of West Azerbaijan province, approximately ۱۵ kilometers northeast of Maku city. The primary objective of the study is to comprehensively examine the study area through the analysis of ۲۵۳ lithogeochemical samples, and assessing reserves utilizing ordinary kriging, guided by subsurface data obtained from ۱۴ boreholes totaling ۹۰۹.۲ meters. The concentration–volume (C–V) multifractal modeling approach was employed to estimate the deposit's reserve. The findings of this research project indicate an estimated ۹۸۸,۶۰۴ tons of the deposit with an average grade of ۰.۱۴%. Through the analysis of log–log plots within the C–V relationship, threshold values signifying various copper (Cu) concentrations were identified. These plots revealed a pronounced power-law correlation between Cu concentrations and their corresponding volumes, with arrows denoting four specific threshold values. Utilizing this analytical methodology, mineralized zones were classified into five distinct categories: high (>۰.۴۲%), above-average (۰.۳۵-۰.۴۲%), average (۰.۲۷-۰.۳۵%), below-average (۰.۱۴-۰.۲۷%), and low (<۰.۱۴%) mineralized zones.

کلیدواژه ها:

Fractal ، reserve estimation ، Ordinary Kriging ، Micromine ، Qarah Tappeh copper deposit