THEORETICAL BASIS OF DETERMINING MINERALIZATION ZONES AND DEVELOPING PROSPECTIVE MAPS BASED ON GIS AND REMOTE SENSING DATA
Keywords:
GIS, remote sensing, mineralization zone, hydrothermal alteration, prospectivity map, evidence layers, multispectral imagery, lineaments and discontinuities, spatial analysis, mineral prospectivity mapping.Abstract
This study, using the example of the Fergana region, sheds light on the scientific and methodological approach to identifying mineralization zones and developing a prospectivity map based on GIS and remote sensing (multispectral) data. In the study, geological and mineralogical evidence (lithology, tectonic faults and their nodes, intrusive contacts, hydrothermal alteration zones) was integrated with spectral indicators obtained from remote sensing, and evidence layers were standardized, normalized, and evaluated as a probability field in the GIS environment. As a result, it was proven that alteration indicators, when used in conjunction with structural-lithological control, allow reducing “false anomalies”, prioritizing the search area, and optimizing field investigations. At the end of the work, it was concluded that the integrated modeling approach is a methodological tool for rapid screening, separation of target zones, and decision-making for further geochemical/geophysical exploration in mineral exploration processes.
