Reporting of gold anomaly and showings of lapis-lazuli from Chakdara granite gneiss and its environs, district Dir, northern Pakistan
Abstract
The Chakdara granite gneiss, covering an area of 60 Km2, is located north of Malakand granite. This granite gneiss was investigated for its potential of economic minerals. During this investigation, besides locating several occurrences of fluorite and blue beryl, a gold bearing-sulfide vein is also present near the contact of Chakdara granite gneiss and metasediments. Chemical analysis shows poly-metallic nature of the vein with significant concentration of Cu, Pb, Zn and Au. A gem quality lapis-lazuli of deep blue color is present in a marbleized limestone at the eastern contact of Chakdara granite gneiss and metasediments. It occurs in the form of small pods, a few cm across, and found as replacement deposits.
References
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