Abstract
Infrared absorption spectrophotometric studies on the altered zones associated with gold mineralization at the Fawakhir gold mine revealed that the ratio of absorbances of the CO vibration absorption band of carbonates at 1430 ± 10 cm -1 , and the SiO vibration absorption band of silicates at 1090 ± 10 cm -1 (designated “δ”), is a characteristic parameter. The CO band of carbonates is absent beyond the limits of the alteration zones. This work also evaluates the validity of the coefficient (δ). Its values are correlated with both the gold and CO 2 contents of the same samples. This verifies the usefulness of CO 2 as an additional pathfinder for gold in the studied locality.
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