Sulfide paragenesis and alteration of the Shahumyan polymetallic vein-hosted epithermal deposit, Kapan district SE Armenia* (original) (raw)

2014

Abstract

The Lesser Caucasus is part of the west-central Tethyan metallogenic belt, which comprises multiple mining districts in Georgia, Azerbaijan, and Armenia. The Amulsar low-sulphidation epithermal deposit in Armenia and Gedabek an epithermal deposit in western Azerbaijan are examples of deposits found in two separate metallogenic periods. Amulsar is associated with Paleogene volcanic and intrusive rocks, whereas Gedabek is associated with Jurassic aged volcanic and intrusive rocks. Deposits found in the Kapan district of SE Armenia are similar in age to the Gedabek district and contain three prominent metallic deposits: Barabatum, Centralni, and Shahumyan. The latter is a polymetallic (Zn-Cu-Pb-Ag-Au), vein-hosted deposit and the only actively producing deposit in the district. The mineralization is hosted by the Barabatum volcanic unit, part of the Middle Jurassic volcanic complex composed of Bajocian and Bathonian andesite and dacite lava flows and intermediate volcaniclastic rocks. ...

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