Aynak : a world-class sediment-hosted stratiform copper deposit in Afghanistan
Benham, A.J.; Coats, J.S.; Kovac, Peter. 2006 Aynak : a world-class sediment-hosted stratiform copper deposit in Afghanistan. In: 12th IAGOD Symposium on 'Understanding the genesis of ore deposits to the meet the demands of the 21st Century', Moscow, Russia, 2006. 245-248.Before downloading, please read NORA policies.
The Aynak copper deposit, 30 km south of Kabul in Afghanistan, was discovered by Afghan-Soviet geologists in the 1970s. Extensive exploration from 1974-89 included drilling, trenching and adits. This delineated several large ore bodies and smaller lenses with a reported resource figure of 240 Mt at 2.3% Cu (ESCAP, 1995). Mineralisation is stratabound and consists of disseminated bornite and chalcopyrite in a cyclic sequence of metamorphosed sediments of late Precambrian age. A model proposes copper was leached from underlying volcanic rocks by circulating brines and then moved up faults to deposit copper sulphides within the overlying sediments.
|Item Type:||Publication - Conference Item (Paper)|
|Programmes:||BGS Programmes > Economic Minerals|
|NORA Subject Terms:||Earth Sciences|
|Date made live:||01 Sep 2010 15:26|
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