Abstract
The results of measurements of the electrical properties of rocks and induced polarization surveying are analyzed for three gold-ore deposits including the Bamskoe, Berezitovoe, and Pokrovka in the Upper Priamurye region. The spatial correlation is shown between mineralization zones and contrasting resistivity boundaries mapped within the gold-ore fields. The assumption is validated that the blocks of high-resistivity rocks have minimal permeability and therefore they were able to act as screens affecting the hydrodynamic features of the hydrothermal system at the stages of deposit formation and at the stages of mineralization formation. This makes such geoelectrical boundaries an important element for exploration, which should be accounted for when interpreting electric prospecting data. The induced polarization survey establishes a diverse interpretation of the polarizability anomalies within the gold-ore fields and a lack of correlation between ranges of increased induced polarization values and gold-ore mineralization. Methods for evaluating polarizability anomalies are proposed.
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ACKNOWLEDGMENTS
The author expresses his gratitude to B.L. Stolov for the valuable comments that contributed to improving the manuscript.
Funding
The study was performed in the framework of the planned scientific and research work (NIR) of the Institute of Tectonics and Geophysics of the Far East Branch of the Russian Academy of Sciences.
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Nosyrev, M.Y. Geoelectrical Characteristics of Gold-Ore Deposits of the Upper Priamurye Region. Russ. J. of Pac. Geol. 13, 464–478 (2019). https://doi.org/10.1134/S1819714019050075
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DOI: https://doi.org/10.1134/S1819714019050075