GEOLOGICAL AND GEOMECHANICAL CONDITIONS FOR IMPLEMENTING IN-SITU LEACHING TECHNOLOGY FOR GOLD EXTRACTION
DOI:
https://doi.org/10.54668/2789-6323-2026-121-1-60-70Keywords:
in-situ leaching, gold, fracturing, permeability, lithology, structural features, geomechanics, hydrogeology, 3D modelingAbstract
The aim of this study is to conduct a comprehensive assessment of geological, geomechanical, and hydrogeological conditions determining the feasibility of applying in-situ gold leaching (ISL) technology at the Ashiktas gold deposit. Three-dimensional geological and structural models were developed based on drilling data, core logging, rock quality designation (RQD) indices, and geostatistical analysis of Au, Ag, and Cu distribution. Special attention was given to the role of lithology, fracturing, and tectonic structures, particularly the Ashiktas fault, in forming zones of high permeability and metal concentration. It was established that gold is mainly associated with fractured tuffs and fault zones that facilitate the circulation of leaching solutions, while intrusive rocks act as natural barriers. Geomechanical and hydrogeological factors affecting solution filtration and environmental risks were also analyzed. The practical significance of this work lies in justifying the use of in-situ leaching as an economically viable and environmentally safe method for gold extraction at deposits with similar geological and structural conditions.
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